◈ Homepage — https://www.dgheatingandair.com/We use essential cookies to make our site work. With your consent, we may also use non-essential cookies to improve user experience and analyze website traffic. By clicking “Accept,” you agree to our website's cookie use as described in our Cookie Policy. You can change your cookie settings at any time by clicking “Preferences.” Preferences Decline Accept REVIEWS | FINANCING | MEMBERSHIPS | BLOG | SPECIALS  HOME ABOUT RESIDENTIAL NEW CONSTRUCTION LIGHT COMMERCIAL CONTACT Call Us Today – (408) 201-9411 Home About Air Conditioning Heating Services HVAC Duct Replacement Light Commercial New Construction Contact Memberships Specials Reviews Blog GET IN TOUCH 408-201-9411 [email protected] PREMIER HEATING & AIR CONDITIONING SERVICES Residential, New Construction, Light Commercial Sales and Service in Santa Clara, San Mateo, and Contra Costa Counties Contact Us Today LICENSED & CERTIFIED TECHNICIANS WHITE-GLOVE SERVICE PRECISION INSTALLATIONS MAINTENANCE MEMBERSHIPS HEATING & AIR CONDITIONING SERVICES IN SANTA CLARA, SAN MATEO, AND CONTRA COSTA COUNTIES CLEAR OPTIONS. NO PRESSURE. The weather in our region can be unpredictable. The temperature and comfort of your home shouldn’t be. We are DG Heating & Air Conditioning, a bay are heating and AC service company that offers solutions for both homes and businesses. From small repairs to major installations, our trained and experienced technicians can handle any problem you encounter with your HVAC system. In addition to heating and AC services, we also provide indoor air quality services, duct removal and replacement, and heat pump installations. We provide custom HVAC solutions for any size project and will guide you through the process from start to finish! Learn More About Us SERVICES THAT DELIVER TRUE COMFORT & CONTROL KEEPING YOUR SPACES COMFORTABLE Your comfort shouldn’t come with compromise. With DG Heating & Air Conditioning guiding your projects, you’ll experience benefits designed for those who expect the best. Learn About Our Memberships AIR CONDITIONING SERVICES HEATING SERVICES NEW CONSTRUCTION DUCT REMOVAL & REPLACEMENT View More Services $99 MAINTENANCE Keep your home comfortable year-round with a professional seasonal maintenance check. Ensure your system runs efficiently, help prevent unexpected breakdowns, and stay prepared for both summer heat and winter cold. BRANDS WE REPRESENT HIGH-QUALITY PARTNERSHIPS WITH LEADING BRANDS DG Heating & Air Conditioning holds BBB A+ accreditation and is fully licensed and insured. Our credentials include authorized dealer status with leading HVAC brands such as Mitsubishi Electric as a Diamond Contractor, American Standard, Bryant and more... and awards such as “Best of Houzz.” TRUSTED BY THE BAY AREA’S MOST DISCERNING CLIENTS CUSTOMER TESTIMONIALS ON GOOGLE + Reviews Review us on Google Read More Reviews Ashwin A. Sabrina K. Joseph D. David K. Bay L. David P. Mike S. Diane F. 潔妮 William B. Mike A. Mike W. Dan H. Allison S. Janos E. Kelli B. Michael J. Halfdan H. Partha B. Sal B. Linda K. Miguel L. David L. Andrew N. Feng Y. Anna A. Qing T. E S. Linda L. Neal S. WK J. Patrick Y. Jack Y. Jeff B. See V. Alex B. Rob M. Morgan G. Jane M. Anthony S. Robert E. Scott B. Dave S. Jacqui K. Kuldeep S. Nikki T. John S. Brian T. James V. Deb K. Linda N. John W. David L. Amy J. Tssihoe Magnus K. Jerry F. Pascal R. Tamra C. Yan L. Craig G. Nancy T. Bernadette A. Mariam F. Robin G. Tami C. Vernon G. Eric C. Dr. M. Rajesh M. D T. Binh H. Gary W. Paul M. Brian A. Howard W. Deb M. Ken B. Ken M. Henry H. Heather S. Michael K. Mingrui B. Keith D. Ron H. Eric L. Russell B. Andres D. Michael M. Kevin W. Satish A. Pratibha S. Jason P. Eric W. Nancy S. K S. Sandy H. Sara S. Debra F. Leslie J. Gordon E. Patricia C. Tim D. Richard K. Soumyadeep G. Mark L. Jon P. David D. Ann-Christine S. John D. Tom M. Wendy P. Stacey B. Fatdrummer65 K K. Alex C. John W. Henry Y. Joseph D. Sonia W. Robert J. Nancy R. Sarah L. Keith Carlos Z. S T. Kevin Mourik N. Carlos-Gil T. Mark D. Bruce W. Muzzi K. Abhilash H. Christopher C. Nancy V. Sylvester G. Ann L. Roberts I. Matthew T. Mark G. Neeraj K. Kimberly C. Katherine B. Henrik P. Tisbe Douglas N. Jennifer D. Chip F. Mike P. Angela K. Yun O. Paul N. Louise G. Evan T. Manny K. Jennifer Ruby S. Debbie F. Sean K. Richard C. SERVING THE BAY AREA’S FINEST HOMES & BUSINESSES CALL (408) 201-9411 FOR AN APPOINTMENT FOR HVAC SERVICES Our team offers a combined 30 years of experience and is dedicated to always delivering premier customer service. We are more than just another HVAC company—we put courtesy and communication at the forefront of our services, so you can always trust you’re getting the highest-quality services. We are an accredited business with the BBB. Discover the DG difference and enjoy the peace of mind of a comfortable home. Contact Us Today CONTACT US 408-201-9411 [email protected] 1040 Commercial Street, STE 104, San Jose, California 95112, United States License #1035345 PROUDLY SERVING Santa Clara County San Mateo County Contra Costa County FIND US ON © 2026  All Rights Reserved | DG Heating & Air Conditioning | Privacy Policy AIR CONDITIONING SERVICES AC Repair Air Conditioning Installation AC Maintenance HEATING SERVICES Heating Repair Furnace Installation Heat Pump Installation RELATED SERVICES Ductless Mini-Splits Indoor Air Quality HVAC Duct Replacement ◈ Interior Pages — 24 pages crawledAir Conditioning Services | DG Heating & Air | San Jose, CA Reviews  | financinG | Memberships | Blog | Specials   Home About Residential New Construction Light Commercial Contact Call Us Today – (408) 201-9411 Home About Air Conditioning Heating Services HVAC Duct Replacement Light Commercial New Construction Contact Memberships Specials Reviews Blog Get in touch 408-201-9411 [email protected] Air Conditioning Services When summer temperatures soar, count on DG Heating & Air Conditioning for responsive AC repair, advanced installations, and preventative maintenance—trusted across San Jose and the Bay Area. keeping your spaces cool for Every season Reliable Comfort When It Matters Most DG Heating & Air Conditioning specializes in expert service—restoring cooling on the hottest days with same-day appointments and fully stocked service trucks. Our NATE-certified team works with all major brands and the latest high-efficiency units, giving homeowners access to quiet, energy-saving systems that stand up to the Bay Area heat. From urgent repairs to complete replacements, every project is handled with precision, courtesy, and local expertise. AC Repair Reliable air conditioning solutions for your home. Detailed diagnostics and expert repairs for all major brands. AC Installation & Replacement Energy-efficient, whisper-quiet systems sized for your space, including ducted and ductless options. AC Maintenance Proactive seasonal service to maximize performance and catch issues early—ideal before the summer rush. Emergency AC Repair 24/7 response when cooling can’t wait—call now for immediate service. More Than Just Cold Air—Real Solutions for Every Home Clear answers, clean work, and comfort that lasts Swift Relief From the Heat AC not working? Our efficient response means your comfort is restored efficiently—often on the first visit. Upgrade to Comfort & Savings Tired of an old, noisy, or expensive AC? We install high-efficiency, ultra-quiet systems designed for Bay Area homes—and help you access local energy rebates. Prevent AC Disasters Regular maintenance and tune-ups keep your system ready for heatwaves, reduce breakdowns, and prolong your investment. Smart Home Integration Ask about smart thermostats and zone control options for custom comfort in every room. $99 Maintenance Get your home ready for the colder months ahead with a professional seasonal maintenance check. Ensure your system runs efficiently, prevent unexpected breakdowns, and stay comfortable all winter long. Your Air Conditioning Questions, Answered Call Us Today How do I know if I should repair or replace my AC? If your AC is over 10 years old, breaks down frequently, or needs a costly repair, replacement may offer better long-term value and efficiency. Our experts can assess your system and recommend the right option. What’s the average cost of AC repair in San Jose? Costs vary depending on the issue, but most repairs range from $200 to $800. For an accurate quote, schedule a diagnostic visit and our team will provide clear, upfront pricing. How do I decide between AC repair vs. replacement? Start with the age of the system, the type of failure, and whether repairs are becoming frequent or costly. If the unit is older and facing a major repair, it may make sense to compare the repair cost to what you’d gain in reliability and efficiency with a new system. We’ll explain your options plainly so you can weigh comfort, budget, and long-term value without being rushed. In many cases, there’s a sensible middle path, repair now, plan for replacement later, and keep your home comfortable in the meantime. How often should I schedule AC maintenance? Annual maintenance is best—ideally before summer hits. Regular tune-ups catch small problems early, improve efficiency, and help you avoid surprise breakdowns. Serving the Bay Area’s Finest Homes & Businesses Call (408) 201-9411 for an appointment for HVAC services Our team offers a combined 30 years of experience and is dedicated to always delivering premier customer service. We are more than just another HVAC company—we put courtesy and communication at the forefront of our services, so you can always trust you’re getting the highest-quality services. We are an accredited business with the BBB. Discover the DG difference and enjoy the peace of mind of a comfortable home. Contact Us Today Contact Us Black telephone receiver icon. 408-201-9411 Black envelope icon. [email protected] Black location marker. 1040 Commercial Street, STE 104, San Jose, California 95112, United States License #1035345 Proudly serving Santa Clara County San Mateo County Contra Costa County Find Us on © 2026  All Rights Reserved | DG Heating & Air Conditioning | Privacy Policy Air Conditioning Services AC Repair Air Conditioning Installation AC Maintenance Heating Services Heating Repair Furnace Installation Heat Pump Installation related Services Ductless Mini-Splits Indoor Air Quality HVAC Duct Replacement HVAC Services San Mateo County – DG Heating & Air Reviews  | financinG | Memberships | Blog | Specials   Home About Residential New Construction Light Commercial Contact Call Us Today – (408) 201-9411 Home About Air Conditioning Heating Services HVAC Duct Replacement Light Commercial New Construction Contact Memberships Specials Reviews Blog Get in touch 408-201-9411 [email protected] Premier Heating & Air Conditioning Services in San Mateo High-End Heating & Air Conditioning Solutions in San Mateo County for Residential and Commercial Properties Contact Us Today Licesnsed & certified technicians White-Glove Service Precision Installations Maintenance Memberships Professional Heating and Cooling Services Tailored to San Mateo County Properties hvac solutions for homes & businesses San Mateo County homes and businesses experience a wide range of coastal and inland climate conditions, making dependable HVAC systems essential. DG Heating & Air Conditioning delivers customized heating and cooling solutions designed for long-term performance. Whether you need repairs, system upgrades, or new installations, our team brings the expertise needed to get the job done right. We also provide advanced indoor air quality services, ductwork solutions, and energy-efficient system options. Learn More About Us Reliable Heating and Cooling Experts in San Mateo County Areas we serve Atherton Hillsborough Woodside Redwood City San Mateo Menlo Park San Carlos Portola Valley Foster City Pacifica Burlingame Daly City San Bruno Half Moon Bay Millbrae DG Heating & Air Conditioning is known across San Mateo County for delivering consistent, high-quality heating and cooling services tailored to each property. Our team takes a thoughtful approach to every project, combining technical expertise with attention to detail. We focus on creating dependable HVAC systems that support comfort, efficiency, and long-term performance. Air Conditioning services Dependable air conditioning solutions tailored for properties across San Mateo County Heating services Consistent heating solutions designed for comfort across San Mateo County properties New Construction Custom HVAC design and installation services for new construction projects in San Mateo County duct removal & replacement Custom HVAC design and installation services for new construction projects in San Mateo County View More Services Frequently asked questions common faqs for San Mateo Do you provide HVAC services across San Mateo County? DG Heating & Air Conditioning serves clients throughout San Mateo County with customized HVAC solutions, including air conditioning, heating, ductwork, and indoor air quality services designed for long-term comfort and efficiency. How can I tell if my HVAC system needs repair or replacement in San Mateo County? Signs like inconsistent airflow, unusual noises, or increasing utility costs often indicate that your system may need service, and our technicians can assess whether a repair or upgrade is the most effective solution. How often should I schedule HVAC maintenance in San Mateo County? Regular maintenance is recommended once before the cooling season and once before the heating season to ensure consistent performance and reliability throughout the year. Trusted by  San Mateo County Clients Customer testimonials on Google + Reviews Review us on Google Read More Reviews Ashwin A. Sabrina K. Joseph D. David K. Bay L. David P. Mike S. Diane F. 潔妮 William B. Mike A. Mike W. Dan H. Allison S. Janos E. Kelli B. Michael J. Halfdan H. Partha B. Sal B. Linda K. Miguel L. David L. Andrew N. Feng Y. Anna A. Qing T. E S. Linda L. Neal S. WK J. Patrick Y. Jack Y. Jeff B. See V. Alex B. Rob M. Morgan G. Jane M. Anthony S. Robert E. Scott B. Dave S. Jacqui K. Kuldeep S. Nikki T. John S. Brian T. James V. Deb K. Linda N. John W. David L. Amy J. Tssihoe Magnus K. Jerry F. Pascal R. Tamra C. Yan L. Craig G. Nancy T. Bernadette A. Mariam F. Robin G. Tami C. Vernon G. Eric C. Dr. M. Rajesh M. D T. Binh H. Gary W. Paul M. Brian A. Howard W. Deb M. Ken B. Ken M. Henry H. Heather S. Michael K. Mingrui B. Keith D. Ron H. Eric L. Russell B. Andres D. Michael M. Kevin W. Satish A. Pratibha S. Jason P. Eric W. Nancy S. K S. Sandy H. Sara S. Debra F. Leslie J. Gordon E. Patricia C. Tim D. Richard K. Soumyadeep G. Mark L. Jon P. David D. Ann-Christine S. John D. Tom M. Wendy P. Stacey B. Fatdrummer65 K K. Alex C. John W. Henry Y. Joseph D. Sonia W. Robert J. Nancy R. Sarah L. Keith Carlos Z. S T. Kevin Mourik N. Carlos-Gil T. Mark D. Bruce W. Muzzi K. Abhilash H. Christopher C. Nancy V. Sylvester G. Ann L. Roberts I. Matthew T. Mark G. Neeraj K. Kimberly C. Katherine B. Henrik P. Tisbe Douglas N. Jennifer D. Chip F. Mike P. Angela K. Yun O. Paul N. Louise G. Evan T. Manny K. Jennifer Ruby S. Debbie F. Sean K. Richard C. Serving the Bay Area’s Finest Homes & Businesses Call (408) 201-9411 for an appointment for HVAC services Our team offers a combined 30 years of experience and is dedicated to always delivering premier customer service. We are more than just another HVAC company—we put courtesy and communication at the forefront of our services, so you can always trust you’re getting the highest-quality services. We are an accredited business with the BBB. Discover the DG difference and enjoy the peace of mind of a comfortable home. Contact Us Today Contact Us Black telephone receiver icon. 408-201-9411 Black envelope icon. [email protected] Black location marker. 1040 Commercial Street, STE 104, San Jose, California 95112, United States License #1035345 Proudly serving Santa Clara County San Mateo County Contra Costa County Find Us on © 2026  All Rights Reserved | DG Heating & Air Conditioning | Privacy Policy Air Conditioning Services AC Repair Air Conditioning Installation AC Maintenance Heating Services Heating Repair Furnace Installation Heat Pump Installation related Services Ductless Mini-Splits Indoor Air Quality HVAC Duct Replacement Indoor Air Quality Solutions | DG Heating & Air | Santa Clara, San Mateo, & Contra Costa Counties Reviews  | financinG | Memberships | Blog | Specials   Home About Residential New Construction Light Commercial Contact Call Us Today – (408) 201-9411 Home About Air Conditioning Heating Services HVAC Duct Replacement Light Commercial New Construction Contact Memberships Specials Reviews Blog Get in touch 408-201-9411 [email protected] Indoor Air Quality Solutions Protect your home and your health with advanced indoor air quality solutions from DG Heating & Air Conditioning. Our systems remove airborne pollutants and help San Jose families breathe cleaner, healthier air every day. Cleaner Indoor Air for Healthier Homes Protect Your Home From Pollutants and Allergens Indoor air quality has become a growing concern for homeowners throughout San Jose and the Bay Area. Seasonal wildfire smoke, pollen, dust, and everyday household pollutants can accumulate inside homes and circulate through HVAC systems. For families with allergies, asthma, or respiratory sensitivities, poor air quality can affect daily comfort and health. DG Heating & Air Conditioning provides customized indoor air quality solutions designed to remove contaminants and improve the air circulating through your home. By integrating filtration, purification, and ventilation improvements into your existing HVAC system, we help transform your home into a cleaner and healthier living environment. Whole-Home Air Filtration Systems High-efficiency HVAC filters capture dust, pollen, pet dander, and other airborne particles before they circulate throughout your home. UV Light Air Purification UV-C light systems installed within your HVAC equipment help neutralize bacteria, mold spores, and other harmful microorganisms. Electronic Air Cleaners and Air Scrubbers Advanced air cleaning systems remove microscopic pollutants and odors, improving overall air freshness and indoor comfort. Humidity and Ventilation Improvements Proper humidity levels and improved airflow can reduce mold growth, eliminate stale air, and create a healthier indoor environment. Benefits of Improving Your Home’s Air Quality Healthier Living Through Cleaner Air Reduced Allergens and Irritants High-efficiency filters and purification systems capture pollen, dust, and pet dander that trigger allergy symptoms. Protection From Outdoor Pollution Advanced filtration helps prevent smoke and pollutants from entering your indoor air during wildfire season. Cleaner and Fresher Indoor Air Proper air purification eliminates lingering odors and stale air, creating a fresher living environment. Integrated HVAC Solutions Whole-home systems work seamlessly with your existing heating and cooling equipment. $99 Maintenance Ensure your heating and cooling system operates efficiently while maintaining cleaner indoor air. Our seasonal maintenance service helps keep your HVAC system performing at its best. Indoor Air Quality Questions Homeowners Ask Call Us Today How can I reduce allergens in my home’s air? Improving air filtration and installing whole-home purification systems can significantly reduce allergens such as pollen, dust mites, and pet dander circulating through your home. Do UV light air purifiers really work in HVAC systems? Yes. UV-C purification systems can neutralize bacteria, viruses, and mold that may grow inside HVAC components, improving overall air cleanliness. What are signs my indoor air quality is poor? Common signs include allergy flare-ups, persistent dust buildup, lingering odors, or stale indoor air. Do air purification systems replace HVAC filters? No. Purifiers work alongside filtration systems to improve overall air quality, but filters are still necessary to trap larger particles. Can indoor air quality upgrades be added to my existing HVAC system? Yes. Many IAQ solutions are designed to integrate directly into your current heating and cooling system without major changes. Serving the Bay Area’s Finest Homes & Businesses Call (408) 201-9411 for an appointment for HVAC services Our team offers a combined 30 years of experience and is dedicated to always delivering premier customer service. We are more than just another HVAC company—we put courtesy and communication at the forefront of our services, so you can always trust you’re getting the highest-quality services. We are an accredited business with the BBB. Discover the DG difference and enjoy the peace of mind of a comfortable home. Contact Us Today Contact Us Black telephone receiver icon. 408-201-9411 Black envelope icon. [email protected] Black location marker. 1040 Commercial Street, STE 104, San Jose, California 95112, United States License #1035345 Proudly serving Santa Clara County San Mateo County Contra Costa County Find Us on © 2026  All Rights Reserved | DG Heating & Air Conditioning | Privacy Policy Air Conditioning Services AC Repair Air Conditioning Installation AC Maintenance Heating Services Heating Repair Furnace Installation Heat Pump Installation related Services Ductless Mini-Splits Indoor Air Quality HVAC Duct Replacement HVAC Services | DG Heating & Air Reviews  | financinG | Memberships | Blog | Specials   Home About Residential New Construction Light Commercial Contact Call Us Today – (408) 201-9411 Home About Air Conditioning Heating Services HVAC Duct Replacement Light Commercial New Construction Contact Memberships Specials Reviews Blog Get in touch 408-201-9411 [email protected] DG HEATING & AIR CONDITIONING Privacy Policy We recognize that you may be concerned about our use and disclosure of your personal information. Your privacy is very important to us, and the following will inform you of the information that we, DG Heating & Air Conditioning, may collect from you, and how it is used. By using our website, www.dgheatingandair.com, you are accepting the practices described in this policy. Information Collection We may collect non-personal information, such as a domain name and IP Address. The domain name and IP address reveals nothing personal about you other than the IP address from which you have accessed our site. We may also collect information about the type of Internet browser you are using, operating system, what brought you to our Website, as well as which of our Web pages you have accessed. Additionally, if you communicate with us regarding our Website or our services, we will collect any information that you provide to us in any such communication. We may contact you via email in the future to tell you about specials, new products or services, or changes to this privacy policy. Information Use We use the collected information primarily for our own internal purposes, such as providing, maintaining, evaluating, and improving our services and Website, fulfilling requests for information, and providing customer support. Security We follow generally accepted industry standards to protect the information submitted to us, both during transmission and once we receive it. If we collect sensitive information (such as credit card data), that information is encrypted and transmitted to us in a secure way. You can verify this by looking for a closed lock icon at the bottom of your web browser, or looking for "https" at the beginning of the address of the web page. While we use encryption to protect sensitive information transmitted online, we also protect your information offline. Only employees who need the information to perform a specific job (for example, billing or customer service) are granted access to personally identifiable information. The computers/servers in which we store personally identifiable information are kept in a secure environment. Cookies We use "cookies" on this site. A cookie is a piece of data stored on a site visitor's hard drive to help us improve your access to our site and identify repeat visitors to our site. For instance, when we use a cookie to identify you, you would not have to log in a password more than once, thereby saving time while on our site. Cookies can also enable us to track and target the interests of our users to enhance the experience on our site. Usage of a cookie is in no way linked to any personally identifiable information on our site. Sharing We will not sell or otherwise provide the information we collect to outside third parties for the purpose of direct or indirect mass email marketing. We will disclose personal information and/or an IP address, when required by law or in the good-faith belief that such action is necessary to: Cooperate with the investigations of purported unlawful activities and conform to the edicts of the law or comply with legal process served on our company Protect and defend the rights or property of our Website and related properties Identify persons who may be violating the law, the rights of third parties, or otherwise misusing our Website or its related properties Please keep in mind that whenever you voluntarily disclose personal information online - for example through e-mail, discussion boards, or elsewhere - that information can be collected and used by others. In short, if you post personal information online that is accessible to the public, you may receive unsolicited messages from other parties in return. Ultimately, you are solely responsible for maintaining the secrecy of your personal information. Please be careful and responsible whenever you are online. Links This Website may contain links to other sites. Please be aware that we are not responsible for the content or privacy practices of such other sites. We encourage our users to be aware when they leave our site and to read the privacy statements of any other site that collects personally identifiable information. Surveys & Contests From time-to-time our site may request information via surveys or contests. Participation in these surveys or contests is completely voluntary and you may choose whether or not to participate and therefore disclose this information. Information requested may include contact information (such as name and shipping address), and demographic information (such as zip code, age). Contact information will be used to notify the winners and award prizes. Survey information will be used for purposes of monitoring or improving the use and satisfaction of this site. Consent By using this Website, you consent to the collection and use of information as specified above. If we make changes to our Privacy Policy, we will post those changes on this page. Please review this page frequently to remain up-to-date with the information we collect, how we use it, and under what circumstances we disclose it. You must review the new Privacy Policy carefully to make sure you understand our practices and procedures. How to contact us If you feel that we are not abiding by this privacy policy, you should contact us immediately via telephone at (408) 669-3496 or via mail Attn: Privacy Officer, 1040 Commercial St, Suite 104, San Jose, CA 95112.  Serving the Bay Area’s Finest Homes & Businesses Call (408) 201-9411 for an appointment for HVAC services Our team offers a combined 30 years of experience and is dedicated to always delivering premier customer service. We are more than just another HVAC company—we put courtesy and communication at the forefront of our services, so you can always trust you’re getting the highest-quality services. We are an accredited business with the BBB. Discover the DG difference and enjoy the peace of mind of a comfortable home. Contact Us Today Contact Us Black telephone receiver icon. 408-201-9411 Black envelope icon. [email protected] Black location marker. 1040 Commercial Street, STE 104, San Jose, California 95112, United States License #1035345 Proudly serving Santa Clara County San Mateo County Contra Costa County Find Us on © 2026  All Rights Reserved | DG Heating & Air Conditioning | Privacy Policy Air Conditioning Services AC Repair Air Conditioning Installation AC Maintenance Heating Services Heating Repair Furnace Installation Heat Pump Installation related Services Ductless Mini-Splits Indoor Air Quality HVAC Duct Replacement Air Conditioning Installation | DG Heating & Air | CA Reviews  | financinG | Memberships | Blog | Specials   Home About Residential New Construction Light Commercial Contact Call Us Today – (408) 201-9411 Home About Air Conditioning Heating Services HVAC Duct Replacement Light Commercial New Construction Contact Memberships Specials Reviews Blog Get in touch 408-201-9411 [email protected] Air Conditioning Installation Ready to upgrade your home with a powerful, energy-efficient air conditioning system? DG Heating & Air Conditioning provides professional AC installation services designed specifically for Bay Area homes. Related services Air Conditioning AC Repair Air Conditioning Installation AC Maintenance Contact Us Upgrade Your Home With a Modern Air Conditioning System Custom AC Solutions Designed for Santa Clara, San Mateo, and Contra Costa County homeowners When your existing air conditioner struggles to keep up with summer heat, replacing it with a new system can dramatically improve comfort and efficiency. Many homeowners in the bay area upgrade their AC systems to reduce energy bills, eliminate frequent breakdowns, and enjoy quieter operation. DG Heating & Air Conditioning takes a consultative approach to every installation, starting with a detailed in-home evaluation to determine the ideal system size and configuration for your space. Our experts consider factors like home layout, insulation, ductwork, and cooling demands during peak summer temperatures. This careful planning ensures your system handles your area's warmest days without wasting energy during milder weather. The result is reliable, efficient cooling tailored specifically to your home. Air Conditioning Installation Services We Provide Complete Cooling System Solutions Central Air Conditioning Installation We install high-efficiency central air systems designed to cool your entire home evenly while minimizing energy consumption. AC Replacement for Older Systems If your current system is outdated or unreliable, we replace it with modern equipment that delivers stronger performance and improved efficiency. High-Efficiency Cooling Systems Our team installs advanced AC systems with high SEER ratings that reduce monthly energy costs and improve comfort. Smart Thermostat Integration Upgrade your system with smart thermostats that allow remote control, automation, and energy-saving scheduling. Zoned Cooling Systems Zoned systems allow different areas of your home to maintain independent temperatures, improving comfort for multi-story homes. What to Expect During Your AC Installation A Smooth, Professional Installation Experience In-Home Consultation and System Design Our technicians evaluate your home’s layout, cooling requirements, and existing equipment to recommend the ideal AC system. Upfront Pricing and Equipment Options We present clear system recommendations with transparent pricing and explain available energy-efficient options. Professional Installation and Setup Our technicians install the new system meticulously, ensuring proper airflow, electrical connections, and performance testing. Permit Handling and Code Compliance If permits are required for AC replacement in your city, our team manages the process to ensure full compliance with local regulations. Final Testing and Walkthrough Once installation is complete, we test the system and walk you through operation, thermostat controls, and maintenance tips. AC Installation Questions Homeowners Ask Schedule a Service How much does it cost to install a new AC in Santa Clara, San Mateo, and Contra Costa Counties? The cost of AC installation varies depending on home size, system efficiency, ductwork condition, and equipment type.  What’s the best AC system for a two-story house? Two-story homes often benefit from properly sized central systems with zoning controls or variable-speed technology. These systems maintain consistent temperatures across floors while improving energy efficiency. Do I need a permit to replace my AC in my city? Yes, most AC replacements require a permit to ensure the installation meets local building codes. DG Heating & Air Conditioning can guide you through this process." Are financing options available for new AC systems? Yes. DG offers financing plans that help spread the cost of a new air conditioner over manageable monthly payments. Ask our team about current promotional financing options. How long does AC installation take? Most residential air conditioning installations are completed within one day. Larger projects or systems requiring ductwork modifications may take longer, but we provide a clear timeline before starting work. Serving the Bay Area’s Finest Homes & Businesses Call (408) 201-9411 for an appointment for HVAC services Our team offers a combined 30 years of experience and is dedicated to always delivering premier customer service. We are more than just another HVAC company—we put courtesy and communication at the forefront of our services, so you can always trust you’re getting the highest-quality services. We are an accredited business with the BBB. Discover the DG difference and enjoy the peace of mind of a comfortable home. Contact Us Today Contact Us Black telephone receiver icon. 408-201-9411 Black envelope icon. [email protected] Black location marker. 1040 Commercial Street, STE 104, San Jose, California 95112, United States License #1035345 Proudly serving Santa Clara County San Mateo County Contra Costa County Find Us on © 2026  All Rights Reserved | DG Heating & Air Conditioning | Privacy Policy Air Conditioning Services AC Repair Air Conditioning Installation AC Maintenance Heating Services Heating Repair Furnace Installation Heat Pump Installation related Services Ductless Mini-Splits Indoor Air Quality HVAC Duct Replacement Reviews | DG Heating & Air | San Jose, CA Reviews  | financinG | Memberships | Blog | Specials   Home About Residential New Construction Light Commercial Contact Call Us Today – (408) 201-9411 Home About Air Conditioning Heating Services HVAC Duct Replacement Light Commercial New Construction Contact Memberships Specials Reviews Blog Get in touch 408-201-9411 [email protected] Client testimonials See what homeowners and businesses across San Jose and the Bay Area say about working with DG Heating & Air Conditioning. Customer testimonials on Google + Reviews Review us on Google Ashwin A. Sabrina K. Joseph D. David K. Bay L. David P. Mike S. Diane F. 潔妮 William B. Mike A. Mike W. Dan H. Allison S. Janos E. Kelli B. Michael J. Halfdan H. Partha B. Sal B. Linda K. Miguel L. David L. Andrew N. Feng Y. Anna A. Qing T. E S. Linda L. Neal S. WK J. Patrick Y. Jack Y. Jeff B. See V. Alex B. Rob M. Morgan G. Jane M. Anthony S. Robert E. Scott B. Dave S. Jacqui K. Kuldeep S. Nikki T. John S. Brian T. James V. Deb K. Linda N. John W. David L. Amy J. Tssihoe Magnus K. Jerry F. Pascal R. Tamra C. Yan L. Craig G. Nancy T. Bernadette A. Mariam F. Robin G. Tami C. Vernon G. Eric C. Dr. M. Rajesh M. D T. Binh H. Gary W. Paul M. Brian A. Howard W. Deb M. Ken B. Ken M. Henry H. Heather S. Michael K. Mingrui B. Keith D. Ron H. Eric L. Russell B. Andres D. Michael M. Kevin W. Satish A. Pratibha S. Jason P. Eric W. Nancy S. K S. Sandy H. Sara S. Debra F. Leslie J. Gordon E. Patricia C. Tim D. Richard K. Soumyadeep G. Mark L. Jon P. David D. Ann-Christine S. John D. Tom M. Wendy P. Stacey B. Fatdrummer65 K K. Alex C. John W. Henry Y. Joseph D. Sonia W. Robert J. Nancy R. Sarah L. Keith Carlos Z. S T. Kevin Mourik N. Carlos-Gil T. Mark D. Bruce W. Muzzi K. Abhilash H. Christopher C. Nancy V. Sylvester G. Ann L. Roberts I. Matthew T. Mark G. Neeraj K. Kimberly C. Katherine B. Henrik P. Tisbe Douglas N. Jennifer D. Chip F. Mike P. Angela K. Yun O. Paul N. Louise G. Evan T. Manny K. Jennifer Ruby S. Debbie F. Sean K. Richard C. Serving the Bay Area’s Finest Homes & Businesses Call (408) 201-9411 for an appointment for HVAC services Our team offers a combined 30 years of experience and is dedicated to always delivering premier customer service. We are more than just another HVAC company—we put courtesy and communication at the forefront of our services, so you can always trust you’re getting the highest-quality services. We are an accredited business with the BBB. Discover the DG difference and enjoy the peace of mind of a comfortable home. Contact Us Today Contact Us Black telephone receiver icon. 408-201-9411 Black envelope icon. [email protected] Black location marker. 1040 Commercial Street, STE 104, San Jose, California 95112, United States License #1035345 Proudly serving Santa Clara County San Mateo County Contra Costa County Find Us on © 2026  All Rights Reserved | DG Heating & Air Conditioning | Privacy Policy Air Conditioning Services AC Repair Air Conditioning Installation AC Maintenance Heating Services Heating Repair Furnace Installation Heat Pump Installation related Services Ductless Mini-Splits Indoor Air Quality HVAC Duct Replacement HVAC Duct Replacement | DG Heating & Air | SJ Reviews  | financinG | Memberships | Blog | Specials   Home About Residential New Construction Light Commercial Contact Call Us Today – (408) 201-9411 Home About Air Conditioning Heating Services HVAC Duct Replacement Light Commercial New Construction Contact Memberships Specials Reviews Blog Get in touch 408-201-9411 [email protected] HVAC Duct ReplacemenT Restore proper airflow and comfort in your home with professional duct replacement from DG Heating & Air Conditioning. Our team designs and installs modern ductwork systems that improve efficiency, air quality, and temperature balance throughout your home. Replace Aging Ductwork for Improved Comfort Stop Losing Energy Through Leaky Ducts Your home’s ductwork plays a critical role in how effectively your heating and cooling system performs. In many older Bay Area homes, duct systems are decades old and may have leaks, crushed sections, or poor insulation. These issues can cause significant energy loss and uneven temperatures throughout the home. In fact, damaged or poorly sealed ducts can waste up to 30% of the air your HVAC system produces before it ever reaches your living spaces. DG Heating & Air Conditioning provides professional duct replacement services that restore proper airflow, improve efficiency, and ensure your heating and cooling system delivers comfort to every room. Ductwork Inspection and Assessment Our technicians begin with a detailed inspection of your existing duct system, identifying leaks, disconnected joints, damaged insulation, and airflow restrictions. Complete Duct Replacement When ductwork is outdated or severely damaged, we design and install a new duct system optimized for your home’s layout and HVAC equipment. Energy-Efficient Duct Installation We install modern R-8 insulated ducts and seal all connections to meet California energy efficiency standards and improve HVAC performance. Airflow Optimization and Vent Placement During duct replacement, we evaluate airflow distribution and adjust vent locations or duct sizing to improve comfort in every room. Benefits of Professional Duct Replacement Improved Comfort, Efficiency, and Air Quality Even Temperatures in Every Room Properly designed duct systems distribute air evenly, eliminating hot or cold spots throughout your home. Improved Energy Efficiency Sealed and insulated ductwork prevents conditioned air from escaping into attics or crawlspaces. Cleaner Indoor Air Replacing old ducts eliminates accumulated dust, debris, and contaminants that can affect indoor air quality. Better HVAC System Performance New ductwork allows your heating and cooling equipment to operate at its intended efficiency. $99 Maintenance Keep your heating and cooling system running efficiently with our seasonal HVAC tune-up service. Regular maintenance helps ensure proper airflow and long-term system reliability. Duct Replacement Questions Homeowners Askk Call Us Today How do I know if my ducts need replacement? Signs include uneven temperatures between rooms, excessive dust in your home, high energy bills, weak airflow from vents, or visible damage in attic ductwork. How much does it cost to replace ductwork in a house? Costs vary depending on the size of the home, number of vents, accessibility of duct runs, and the materials used. A professional inspection allows us to provide an accurate estimate. Can new ductwork improve HVAC efficiency? Yes. Replacing damaged or leaking ducts helps your HVAC system deliver air more efficiently, which can reduce energy waste and improve comfort. How long does duct replacement take? Most residential duct replacement projects can be completed within one to two days depending on the size and complexity of the system. Should ducts be replaced when installing a new HVAC system? If the existing ducts are old, leaking, or improperly sized, replacing them during HVAC installation ensures the new system performs at its best. Serving the Bay Area’s Finest Homes & Businesses Call (408) 201-9411 for an appointment for HVAC services Our team offers a combined 30 years of experience and is dedicated to always delivering premier customer service. We are more than just another HVAC company—we put courtesy and communication at the forefront of our services, so you can always trust you’re getting the highest-quality services. We are an accredited business with the BBB. Discover the DG difference and enjoy the peace of mind of a comfortable home. Contact Us Today Contact Us Black telephone receiver icon. 408-201-9411 Black envelope icon. [email protected] Black location marker. 1040 Commercial Street, STE 104, San Jose, California 95112, United States License #1035345 Proudly serving Santa Clara County San Mateo County Contra Costa County Find Us on © 2026  All Rights Reserved | DG Heating & Air Conditioning | Privacy Policy Air Conditioning Services AC Repair Air Conditioning Installation AC Maintenance Heating Services Heating Repair Furnace Installation Heat Pump Installation related Services Ductless Mini-Splits Indoor Air Quality HVAC Duct Replacement AC Maintenance | DG Heating & Air | SJ Reviews  | financinG | Memberships | Blog | Specials   Home About Residential New Construction Light Commercial Contact Call Us Today – (408) 201-9411 Home About Air Conditioning Heating Services HVAC Duct Replacement Light Commercial New Construction Contact Memberships Specials Reviews Blog Get in touch 408-201-9411 [email protected] AC Maintenance Keep your cooling system running smoothly with professional AC maintenance from DG Heating & Air Conditioning. This help prevent unexpected breakdowns, improve efficiency, and ensure your air conditioner is ready for hottest summer days. Related services Air Conditioning AC Repair Air Conditioning Installation AC Maintenance Contact Us Protect Your Comfort With Routine AC Maintenance Simple maintenance That Prevents Costly Breakdowns Air conditioners work hard during warm summers, and without routine maintenance they can lose efficiency or fail when you need them most. A professional AC maintenance service helps your system run smoothly while reducing wear on important components. DG Heating & Air Conditioning offers a thorough AC maintenance service designed to prepare your cooling system for peak performance. Our technicians inspect, clean, and test your equipment to ensure everything operates safely and efficiently. Regular maintenance also helps lower energy costs and extend the lifespan of your air conditioning system. With our popular $99 AC maintenance service , keeping your system in top condition has never been easier. What’s Included in Our AC maintenance Comprehensive Cooling System Care Thermostat Calibration We check thermostat accuracy and settings to ensure your system maintains the desired temperature efficiently. Evaporator and Condenser Coil Cleaning Clean coils allow your AC to transfer heat more efficiently, improving cooling performance and lowering energy use. Refrigerant Level Check Our technicians verify refrigerant levels and inspect for leaks that could reduce cooling capacity or damage the compressor. Electrical Connection Inspection Loose electrical components are tightened and tested to ensure safe and reliable operation. Lubrication of Moving Parts Proper lubrication reduces friction on motors and mechanical components, helping your system run smoothly. Air Filter Replacement or Inspection Clean filters improve airflow, indoor air quality, and system efficiency. Full System Performance Test We run the system and check airflow, temperature split, and overall performance to confirm everything is operating properly. What Regular AC Maintenance Delivers Better Performance, Lower Stress Improved Energy Efficiency Clean components and proper calibration allow your system to cool your home using less energy. Fewer Unexpected Breakdowns Routine inspections catch small issues before they turn into major repair problems. Longer Equipment Lifespan Regular maintenance reduces strain on key components, helping your AC last longer. Reliable Cooling During Heatwaves Your system will be prepared for peak summer temperatures in your area. Peace of Mind All Season Long With a professionally serviced system, you can relax knowing your cooling equipment is ready when you need it. AC Maintenance Questions Homeowners Ask Schedule a Service Is an AC maintenance plan necessary every year? Yes. Annual maintenance helps your system run efficiently, prevents unexpected breakdowns, and ensures the equipment continues operating safely. Many manufacturers also recommend yearly service to maintain warranty coverage What does an AC maintenance service include? A typical maintenance visit includes inspecting system components, cleaning coils, checking refrigerant levels, tightening electrical connections, testing airflow, and verifying overall system performance. When is the best time to schedule AC maintenance? Spring is usually the best time to schedule maintenance before the hottest summer temperatures arrive. This ensures your system is fully prepared for heavy use. Can AC maintenance reduce my energy bills? Yes. A well-maintained air conditioner operates more efficiently, which can reduce electricity usage and lower cooling costs throughout the summer. Do you offer maintenance plans? Yes. DG Heating & Air Conditioning offers maintenance plans that include seasonal maintenance services, priority scheduling, and repair discounts to keep your HVAC system running reliably year-round. Serving the Bay Area’s Finest Homes & Businesses Call (408) 201-9411 for an appointment for HVAC services Our team offers a combined 30 years of experience and is dedicated to always delivering premier customer service. We are more than just another HVAC company—we put courtesy and communication at the forefront of our services, so you can always trust you’re getting the highest-quality services. We are an accredited business with the BBB. Discover the DG difference and enjoy the peace of mind of a comfortable home. Contact Us Today Contact Us Black telephone receiver icon. 408-201-9411 Black envelope icon. [email protected] Black location marker. 1040 Commercial Street, STE 104, San Jose, California 95112, United States License #1035345 Proudly serving Santa Clara County San Mateo County Contra Costa County Find Us on © 2026  All Rights Reserved | DG Heating & Air Conditioning | Privacy Policy Air Conditioning Services AC Repair Air Conditioning Installation AC Maintenance Heating Services Heating Repair Furnace Installation Heat Pump Installation related Services Ductless Mini-Splits Indoor Air Quality HVAC Duct Replacement Ductless Mini-Splits | DG Heating & Air | SJ Reviews  | financinG | Memberships | Blog | Specials   Home About Residential New Construction Light Commercial Contact Call Us Today – (408) 201-9411 Home About Air Conditioning Heating Services HVAC Duct Replacement Light Commercial New Construction Contact Memberships Specials Reviews Blog Get in touch 408-201-9411 [email protected] Ductless Mini-Split Installation Enjoy efficient heating and cooling without installing ductwork. DG Heating & Air Conditioning designs and installs ductless mini-split systems that deliver flexible comfort for homes across San Jose and the Bay Area. Flexible Heating and Cooling Without Ductwork Perfect Climate Control for Any Space Ductless mini-split systems provide powerful heating and cooling without the need for traditional ductwork. Each system consists of an outdoor unit connected to one or more sleek indoor air handlers that deliver precise temperature control in individual rooms. These systems are especially useful for homes without existing ducts, room additions, garages, ADUs, and areas that never seem to stay comfortable with central HVAC alone. Because mini-splits operate as heat pumps, they provide both heating and cooling throughout the year. For many San Jose homeowners, ductless systems offer a modern, efficient way to solve comfort challenges without major renovations. Ductless Mini-Split Installation We install advanced ductless mini-split systems that deliver efficient heating and cooling without ductwork. These systems are ideal for room additions, garages, offices, and older homes. Multi-Zone Mini-Split Systems One outdoor condenser can power multiple indoor units, allowing you to create individual temperature zones in different rooms throughout your home. Mini-Split Repair and Service Our technicians diagnose and repair ductless systems quickly, addressing issues such as refrigerant leaks, airflow problems, and electronic control failures. Advantages of Ductless Mini-Split Systems Modern Comfort for Today’s Homes No Ductwork Required Ductless systems require only a small wall opening to connect indoor and outdoor units, making installation quick and minimally invasive. Energy-Efficient Operation Many mini-split systems are highly efficient and can significantly reduce energy use compared to older heating and cooling equipment. Personalized Room-by-Room Comfort Zoned control allows different areas of your home to maintain different temperatures, eliminating thermostat conflicts. Great for Additions and Older Homes Mini-splits are ideal for homes that lack ductwork or spaces where extending ducts would be difficult. Quiet, Modern Performance Today’s ductless systems operate quietly and feature sleek indoor units designed to blend into modern living spaces. $99 MAINTENANCE Protect your comfort year-round with our seasonal maintenance service. Our technicians inspect and optimize your heating and cooling systems to ensure reliable performance. Ductless Mini-Split Questions Homeowners Ask Call Us Today Can I cool my addition without ductwork? Yes. Ductless mini-splits are one of the best solutions for cooling or heating additions, garages, ADUs, or other spaces where installing ducts would be difficult. What are the benefits of ductless mini-splits vs central air? Mini-splits allow zoned temperature control, require less installation work, and often operate more efficiently for smaller spaces or individual rooms. How many rooms can a ductless system serve? Many systems can support multiple indoor units connected to one outdoor condenser, allowing you to control temperatures in several rooms independently. Are ductless mini-splits energy efficient? Yes. Many modern systems deliver very high efficiency and can significantly reduce heating and cooling energy usage. Can ductless systems work alongside my existing HVAC system? Absolutely. Many homeowners add a ductless unit to complement their central HVAC system for spaces like sunrooms, offices, or upstairs bedrooms. Serving the Bay Area’s Finest Homes & Businesses Call (408) 201-9411 for an appointment for HVAC services Our team offers a combined 30 years of experience and is dedicated to always delivering premier customer service. We are more than just another HVAC company—we put courtesy and communication at the forefront of our services, so you can always trust you’re getting the highest-quality services. We are an accredited business with the BBB. Discover the DG difference and enjoy the peace of mind of a comfortable home. Contact Us Today Contact Us Black telephone receiver icon. 408-201-9411 Black envelope icon. [email protected] Black location marker. 1040 Commercial Street, STE 104, San Jose, California 95112, United States License #1035345 Proudly serving Santa Clara County San Mateo County Contra Costa County Find Us on © 2026  All Rights Reserved | DG Heating & Air Conditioning | Privacy Policy Air Conditioning Services AC Repair Air Conditioning Installation AC Maintenance Heating Services Heating Repair Furnace Installation Heat Pump Installation related Services Ductless Mini-Splits Indoor Air Quality HVAC Duct Replacement AC Repair | DG Heating & Air | San Jose, CA Reviews  | financinG | Memberships | Blog | Specials   Home About Residential New Construction Light Commercial Contact Call Us Today – (408) 201-9411 Home About Air Conditioning Heating Services HVAC Duct Replacement Light Commercial New Construction Contact Memberships Specials Reviews Blog Get in touch 408-201-9411 [email protected] AC Repair When summer temperatures soar, count on DG Heating & Air Conditioning for responsive AC repair, advanced installations, and preventative maintenance—trusted across San Jose and the Bay Area. Related services Contact Us Air Conditioning AC Repair Air Conditioning Installation AC Maintenance Common Signs You Need AC Repair Get comfortable again, with clear options and no surprise pressure Air conditioning systems often show warning signs before a complete breakdown. Addressing problems early can prevent larger, more expensive repairs later.  You may need AC repair if you notice: • Warm air coming from your vents • Weak or uneven airflow • Frequent cycling on and off • Unusual banging, rattling, or grinding noises • Sudden increases in energy bills • Ice forming on the unit • Water leaking around the system • Thermostat not responding properly If something doesn’t feel right, it’s worth having it checked. Small issues can escalate quickly during peak summer heat. Common AC problems we fix, from “not cooling” to loud noises and weak airflow Symptoms that usually mean it’s time to schedule service Many breakdowns start as small warning signs, and catching them early can prevent a bigger failure during the next heat wave. If your air conditioner is doing any of the following, it’s worth getting it checked sooner rather than later: AC running but not cooling the house, which can be caused by airflow restrictions, system controls, or component issues that need proper diagnosis Weak airflow from vents, often tied to blower problems, duct leakage, or blockage that keeps cold air from reaching the rooms you care about Strange noises or odors, which can point to electrical components, motors, or other issues that shouldn’t be ignored Short cycling or nonstop running, which can signal performance problems that raise energy bills and strain the system Uneven temperatures in the home, a frequent sign of airflow and ductwork issues as much as equipment issues What to expect from an AC repair visit A simple process that keeps you in control of the decision We start with a focused diagnostic process based on your symptoms, then confirm the root cause before recommending a repair. You’ll get straightforward explanations and practical options, including when it makes sense to repair now versus plan ahead for replacement. Our goal is to complete repairs efficiently and leave your space clean and orderly, so the service visit feels calm and predictable, not disruptive. Repair today, prevent the next breakdown tomorrow Maintenance and planning that make summer feel less stressful After an AC repair, many homeowners ask the same question: “How do I keep this from happening again?” Regular tune-ups can catch performance drops early, and a maintenance routine can reduce the odds of a mid-season failure when your system is working hardest. If your system is older or you’re weighing bigger decisions, we can also help you plan next steps through HVAC maintenance, maintenance plans, or a replacement consult when it’s truly warranted.  Your Air Conditioning Questions, Answered Call Us Today How do I know if I should repair or replace my AC? If your AC is over 10 years old, breaks down frequently, or needs a costly repair, replacement may offer better long-term value and efficiency. Our experts can assess your system and recommend the right option. What’s the average cost of AC repair in San Jose? Costs vary depending on the issue. For an accurate quote, schedule a diagnostic visit and our team will provide clear, upfront pricing. How do I decide between AC repair vs. replacement? Start with the age of the system, the type of failure, and whether repairs are becoming frequent or costly. If the unit is older and facing a major repair, it may make sense to compare the repair cost to what you’d gain in reliability and efficiency with a new system. We’ll explain your options plainly so you can weigh comfort, budget, and long-term value without being rushed. In many cases, there’s a sensible middle path, repair now, plan for replacement later, and keep your home comfortable in the meantime. How often should I schedule AC maintenance? Annual maintenance is best—ideally before summer hits. Serving the Bay Area’s Finest Homes & Businesses Call (408) 201-9411 for an appointment for HVAC services Our team offers a combined 30 years of experience and is dedicated to always delivering premier customer service. We are more than just another HVAC company—we put courtesy and communication at the forefront of our services, so you can always trust you’re getting the highest-quality services. We are an accredited business with the BBB. Discover the DG difference and enjoy the peace of mind of a comfortable home. Contact Us Today Contact Us Black telephone receiver icon. 408-201-9411 Black envelope icon. [email protected] Black location marker. 1040 Commercial Street, STE 104, San Jose, California 95112, United States License #1035345 Proudly serving Santa Clara County San Mateo County Contra Costa County Find Us on © 2026  All Rights Reserved | DG Heating & Air Conditioning | Privacy Policy Air Conditioning Services AC Repair Air Conditioning Installation AC Maintenance Heating Services Heating Repair Furnace Installation Heat Pump Installation related Services Ductless Mini-Splits Indoor Air Quality HVAC Duct Replacement Furnace Installation | DG Heating & Air | San Jose, CA Reviews  | financinG | Memberships | Blog | Specials   Home About Residential New Construction Light Commercial Contact Call Us Today – (408) 201-9411 Home About Air Conditioning Heating Services HVAC Duct Replacement Light Commercial New Construction Contact Memberships Specials Reviews Blog Get in touch 408-201-9411 [email protected] Furnace Installation Upgrade your home’s comfort with professional furnace installation from DG Heating & Air Conditioning. Our team installs reliable, high-efficiency heating systems designed to keep Bay Area homes warm, safe, and energy-efficient. Related services Heating Services Heating Repair Furnace Installation Heat Pump Installation Contact Us Replace Your Old Furnace With a Modern Heating System Smart Heating Solutions for Bay Area Homes If your furnace is aging or struggling to keep your home warm, replacing it with a modern heating system can dramatically improve comfort and efficiency. Many bay area homeowners upgrade their heating systems after years of rising energy bills, uneven heating, or repeated repairs. DG Heating & Air Conditioning provides expert heating installation designed specifically for the Bay Area’s climate and housing styles. Our team evaluates your home’s layout, insulation, and existing ductwork to recommend the ideal system for reliable comfort. Whether you choose a high-efficiency furnace or an advanced heat pump solution, we ensure your new system delivers dependable warmth for years to come. Heating System Installation Services We Provide Complete Furnace Replacement Solutions New Furnace Installation We install modern gas furnaces designed for powerful, consistent heating throughout your home. Furnace Replacement for Older Systems If your current furnace is over 15–20 years old or requires frequent repairs, replacing it with a modern system can improve efficiency and reliability. High-Efficiency Heating Systems We install high AFUE-rated furnaces that can dramatically reduce energy consumption while improving heating performance. Heat Pump Heating Systems For Bay Area homes, heat pumps provide efficient heating and cooling in one system, making them a popular modern upgrade. Smart Thermostat Integration Smart thermostat upgrades allow precise temperature control and improved energy management throughout your home. What to Expect During Your Heating Installation A Smooth and Professional Installation Experience In-Home System Evaluation We assess your home’s size, insulation, and heating requirements to properly size your new furnace for optimal comfort and efficiency. Clear Equipment Recommendations Our technicians explain system options, including high-efficiency furnaces and heat pumps, so you can choose the right solution. Professional Installation and Setup Your new heating system is installed carefully, ensuring proper airflow, proper gas connections, and reliable performance. Permits and Code Compliance If permits are required for furnace replacement in San Jose, we guide you through this process and coordinate inspections. System Testing and Walkthrough After installation, we thoroughly test your new system and show you how to operate your thermostat and heating controls. Furnace Installation Questions Homeowners Ask Schedule a Service How much does it cost to replace a furnace in my area? Furnace replacement costs vary, depending on system efficiency, home size, ductwork condition, and installation complexity.  What’s the best heating system for Bay Area homes? Both high-efficiency furnaces and heat pumps work well in the Bay Area. Heat pumps are popular because they provide both heating and cooling efficiently, while gas furnaces offer powerful heating for homes with existing gas systems. How long does furnace installation take? Most furnace replacements can be completed within a single day. More complex projects involving duct modifications or system upgrades may require additional time. Do you offer financing for new heating systems? Yes. DG Heating & Air Conditioning offers financing plans that allow homeowners to spread the cost of a new heating system over manageable monthly payments. What are signs it’s time to replace my furnace? Common signs include frequent repairs, uneven heating, rising energy bills, strange noises, or a system older than 15–20 years. Serving the Bay Area’s Finest Homes & Businesses Call (408) 201-9411 for an appointment for HVAC services Our team offers a combined 30 years of experience and is dedicated to always delivering premier customer service. We are more than just another HVAC company—we put courtesy and communication at the forefront of our services, so you can always trust you’re getting the highest-quality services. We are an accredited business with the BBB. Discover the DG difference and enjoy the peace of mind of a comfortable home. Contact Us Today Contact Us Black telephone receiver icon. 408-201-9411 Black envelope icon. [email protected] Black location marker. 1040 Commercial Street, STE 104, San Jose, California 95112, United States License #1035345 Proudly serving Santa Clara County San Mateo County Contra Costa County Find Us on © 2026  All Rights Reserved | DG Heating & Air Conditioning | Privacy Policy Air Conditioning Services AC Repair Air Conditioning Installation AC Maintenance Heating Services Heating Repair Furnace Installation Heat Pump Installation related Services Ductless Mini-Splits Indoor Air Quality HVAC Duct Replacement HVAC Services Santa Clara County – DG Heating & Air Reviews  | financinG | Memberships | Blog | Specials   Home About Residential New Construction Light Commercial Contact Call Us Today – (408) 201-9411 Home About Air Conditioning Heating Services HVAC Duct Replacement Light Commercial New Construction Contact Memberships Specials Reviews Blog Get in touch 408-201-9411 [email protected] Premier Heating & Air Conditioning Services in Santa Clara Premier Heating & Air Conditioning Services in Santa Clara County for Homes and Businesses Contact Us Today Licesnsed & certified technicians White-Glove Service Precision Installations Maintenance Memberships Expert HVAC Solutions Designed for Comfort and Efficiency in Santa Clara County hvac solutions for homes & businesses The weather across Santa Clara County can shift throughout the day, but your indoor comfort should remain consistent. DG Heating & Air Conditioning provides reliable HVAC services for homeowners and businesses throughout the region. From system repairs to full installations, our experienced technicians handle every aspect of heating and cooling with precision. We also offer indoor air quality solutions, duct replacement, and heat pump systems tailored to your property. Learn More About Us Trusted HVAC Professionals Serving Santa Clara County Areas we serve San Jose Los Gatos Monte Sereno Los Altos Los Altos Hills Mountain View Saratoga Palo Alto DG Heating & Air Conditioning has built a strong reputation throughout Santa Clara County for delivering dependable HVAC solutions with a focus on quality and professionalism. Our licensed and certified technicians bring years of experience to every project, ensuring each system is installed and serviced with precision. We are committed to providing long-term comfort solutions that homeowners and businesses can rely on. Air Conditioning services Professional air conditioning services designed for Santa Clara County homes and businesses Heating services Reliable heating services tailored for homes and businesses throughout Santa Clara County New Construction Professional new construction HVAC solutions for residential and commercial projects in Santa Clara County duct removal & replacement Professional new construction HVAC solutions for residential and commercial projects in Santa Clara County View More Services Frequently asked questions common faqs for Santa Clara Do you offer HVAC services throughout Santa Clara County? DG Heating & Air Conditioning provides comprehensive heating and cooling services across Santa Clara County, including system repairs, installations, maintenance, and indoor air quality solutions for both residential and commercial properties. How do I know if I need HVAC repair or replacement? If your system is experiencing frequent issues, uneven temperatures, or rising energy bills, it may be time for a professional evaluation to determine whether repair or replacement is the better option for your home or business. How often should HVAC systems be serviced in Santa Clara County? Most heating and cooling systems should be professionally serviced at least twice a year to maintain efficiency, prevent unexpected issues, and extend the lifespan of the equipment. Trusted by  Santa Clara County Clients Customer testimonials on Google + Reviews Review us on Google Read More Reviews Ashwin A. Sabrina K. Joseph D. David K. Bay L. David P. Mike S. Diane F. 潔妮 William B. Mike A. Mike W. Dan H. Allison S. Janos E. Kelli B. Michael J. Halfdan H. Partha B. Sal B. Linda K. Miguel L. David L. Andrew N. Feng Y. Anna A. Qing T. E S. Linda L. Neal S. WK J. Patrick Y. Jack Y. Jeff B. See V. Alex B. Rob M. Morgan G. Jane M. Anthony S. Robert E. Scott B. Dave S. Jacqui K. Kuldeep S. Nikki T. John S. Brian T. James V. Deb K. Linda N. John W. David L. Amy J. Tssihoe Magnus K. Jerry F. Pascal R. Tamra C. Yan L. Craig G. Nancy T. Bernadette A. Mariam F. Robin G. Tami C. Vernon G. Eric C. Dr. M. Rajesh M. D T. Binh H. Gary W. Paul M. Brian A. Howard W. Deb M. Ken B. Ken M. Henry H. Heather S. Michael K. Mingrui B. Keith D. Ron H. Eric L. Russell B. Andres D. Michael M. Kevin W. Satish A. Pratibha S. Jason P. Eric W. Nancy S. K S. Sandy H. Sara S. Debra F. Leslie J. Gordon E. Patricia C. Tim D. Richard K. Soumyadeep G. Mark L. Jon P. David D. Ann-Christine S. John D. Tom M. Wendy P. Stacey B. Fatdrummer65 K K. Alex C. John W. Henry Y. Joseph D. Sonia W. Robert J. Nancy R. Sarah L. Keith Carlos Z. S T. Kevin Mourik N. Carlos-Gil T. Mark D. Bruce W. Muzzi K. Abhilash H. Christopher C. Nancy V. Sylvester G. Ann L. Roberts I. Matthew T. Mark G. Neeraj K. Kimberly C. Katherine B. Henrik P. Tisbe Douglas N. Jennifer D. Chip F. Mike P. Angela K. Yun O. Paul N. Louise G. Evan T. Manny K. Jennifer Ruby S. Debbie F. Sean K. Richard C. Serving the Bay Area’s Finest Homes & Businesses Call (408) 201-9411 for an appointment for HVAC services Our team offers a combined 30 years of experience and is dedicated to always delivering premier customer service. We are more than just another HVAC company—we put courtesy and communication at the forefront of our services, so you can always trust you’re getting the highest-quality services. We are an accredited business with the BBB. Discover the DG difference and enjoy the peace of mind of a comfortable home. Contact Us Today Contact Us Black telephone receiver icon. 408-201-9411 Black envelope icon. [email protected] Black location marker. 1040 Commercial Street, STE 104, San Jose, California 95112, United States License #1035345 Proudly serving Santa Clara County San Mateo County Contra Costa County Find Us on © 2026  All Rights Reserved | DG Heating & Air Conditioning | Privacy Policy Air Conditioning Services AC Repair Air Conditioning Installation AC Maintenance Heating Services Heating Repair Furnace Installation Heat Pump Installation related Services Ductless Mini-Splits Indoor Air Quality HVAC Duct Replacement Financing | DG Heating & Air | San Jose, CA Reviews  | financinG | Memberships | Blog | Specials   Home About Residential New Construction Light Commercial Contact Call Us Today – (408) 201-9411 Home About Air Conditioning Heating Services HVAC Duct Replacement Light Commercial New Construction Contact Memberships Specials Reviews Blog Get in touch 408-201-9411 [email protected] Financing options Make your heating and cooling upgrades more manageable with flexible financing options available for Bay Area homeowners and businesses. Flexible Financing for Heating & Cooling Services AFFORDABLE COMFORTability When your HVAC system stops working or needs to be replaced, it can quickly impact the comfort of your home or business. These situations often arise unexpectedly, making it difficult to plan for the full cost upfront. DG Heating & Air Conditioning offers financing solutions that allow you to move forward with necessary repairs or system upgrades without delay. With flexible payment options, you can restore comfort while spreading out the cost over time. Financing Options Through Trusted Providers Flexible Plans Designed Around you JB Financing JB Financing provides homeowners with flexible payment plans that allow the cost of HVAC repairs and upgrades to be spread out over time, making essential improvements more accessible. Synchrony Bank Synchrony Bank offers financing programs with promotional terms, including deferred interest options, allowing you to invest in your comfort while managing your budget effectively. JB Financing Learn More syncrony bank Learn More DG Heating & Air Conditioning partners with reputable financing providers to offer flexible solutions tailored to your needs . Serving the Bay Area’s Finest Homes & Businesses Call (408) 201-9411 for an appointment for HVAC services Our team offers a combined 30 years of experience and is dedicated to always delivering premier customer service. We are more than just another HVAC company—we put courtesy and communication at the forefront of our services, so you can always trust you’re getting the highest-quality services. We are an accredited business with the BBB. Discover the DG difference and enjoy the peace of mind of a comfortable home. Contact Us Today Contact Us Black telephone receiver icon. 408-201-9411 Black envelope icon. [email protected] Black location marker. 1040 Commercial Street, STE 104, San Jose, California 95112, United States License #1035345 Proudly serving Santa Clara County San Mateo County Contra Costa County Find Us on © 2026  All Rights Reserved | DG Heating & Air Conditioning | Privacy Policy Air Conditioning Services AC Repair Air Conditioning Installation AC Maintenance Heating Services Heating Repair Furnace Installation Heat Pump Installation related Services Ductless Mini-Splits Indoor Air Quality HVAC Duct Replacement HVAC Contractor | DG Heating & Air | San Jose, CA Reviews  | financinG | Memberships | Blog | Specials   Home About Residential New Construction Light Commercial Contact Call Us Today – (408) 201-9411 Home About Air Conditioning Heating Services HVAC Duct Replacement Light Commercial New Construction Contact Memberships Specials Reviews Blog Get in touch 408-201-9411 [email protected] About DG Heating & Air Conditioning Proudly serving the Bay Area since 2009, DG Heating & Air Conditioning is a licensed HVAC company built on professionalism, quality, and long-term client relationships. The Leaders in Residential & Commercial Heating & AC Services  hvac excellence across the bay area Welcome to DG Heating & Air Conditioning, an HVAC company that is skill and dependable, and here for all of your home and business heating and cooling needs in the bay area. We put communication and friendliness at the forefront of our business and strive to satisfy our customers with every step of the service experience. Our goal is to provide exemplary services. The services we offer include: Heat Pump Installation Check refrigerant lines and system components Furnace repairs, replacements, and maintenance Whole-home air purification Duct removal and replacement Light Commercial heating and cooling solutions Our Philosophy Values That Shape Your Experience Professionalism Every client receives respectful, polished service—from the first call to the final walkthrough. We show up on time, protect your home, and communicate clearly at every step. Expertise Our bring advanced knowledge to every installation and repair, ensuring your comfort system performs flawlessly. Integrity We believe in honest recommendations, transparent pricing, and work that stands the test of time. No shortcuts, no surprises—just the highest standards in HVAC. Client Care We treat your home as our own, offering maintenance plans, efficient emergency response, and solutions tailored to your lifestyle and property. Businesses We Work With high-quality partnerships with leading lenders DG Heating & Air Conditioning holds BBB A+ accreditation and is fully licensed and insured. Our credentials include authorized dealer status with leading HVAC brands such as Mitsubishi Electric as a Diamond Contractor, American Standard, Bryant and more... and awards such as “Best of Houzz.” Serving the Bay Area’s Finest Homes & Businesses Call (408) 201-9411 for an appointment for HVAC services Our team offers a combined 30 years of experience and is dedicated to always delivering premier customer service. We are more than just another HVAC company—we put courtesy and communication at the forefront of our services, so you can always trust you’re getting the highest-quality services. We are an accredited business with the BBB. Discover the DG difference and enjoy the peace of mind of a comfortable home. Contact Us Today Contact Us Black telephone receiver icon. 408-201-9411 Black envelope icon. [email protected] Black location marker. 1040 Commercial Street, STE 104, San Jose, California 95112, United States License #1035345 Proudly serving Santa Clara County San Mateo County Contra Costa County Find Us on © 2026  All Rights Reserved | DG Heating & Air Conditioning | Privacy Policy Air Conditioning Services AC Repair Air Conditioning Installation AC Maintenance Heating Services Heating Repair Furnace Installation Heat Pump Installation related Services Ductless Mini-Splits Indoor Air Quality HVAC Duct Replacement HVAC Tips & Insights | DG Heating & Air | San Jose, CA Reviews  | financinG | Memberships | Blog | Specials   Home About Residential New Construction Light Commercial Contact Call Us Today – (408) 201-9411 Home About Air Conditioning Heating Services HVAC Duct Replacement Light Commercial New Construction Contact Memberships Specials Reviews Blog Get in touch 408-201-9411 [email protected] Smart HVAC Tips and Industry Insights Explore practical advice, answers to common questions, and the latest HVAC trends—trusted by Bay Area homeowners and businesses. Coming Soon! Serving the Bay Area’s Finest Homes & Businesses Call (408) 201-9411 for an appointment for HVAC services Our team offers a combined 30 years of experience and is dedicated to always delivering premier customer service. We are more than just another HVAC company—we put courtesy and communication at the forefront of our services, so you can always trust you’re getting the highest-quality services. We are an accredited business with the BBB. Discover the DG difference and enjoy the peace of mind of a comfortable home. Contact Us Today Contact Us Black telephone receiver icon. 408-201-9411 Black envelope icon. [email protected] Black location marker. 1040 Commercial Street, STE 104, San Jose, California 95112, United States License #1035345 Proudly serving Santa Clara County San Mateo County Contra Costa County Find Us on © 2026  All Rights Reserved | DG Heating & Air Conditioning | Privacy Policy Air Conditioning Services AC Repair Air Conditioning Installation AC Maintenance Heating Services Heating Repair Furnace Installation Heat Pump Installation related Services Ductless Mini-Splits Indoor Air Quality HVAC Duct Replacement HVAC Specials | DG Heating & Air | San Jose, CA Reviews  | financinG | Memberships | Blog | Specials   Home About Residential New Construction Light Commercial Contact Call Us Today – (408) 201-9411 Home About Air Conditioning Heating Services HVAC Duct Replacement Light Commercial New Construction Contact Memberships Specials Reviews Blog Get in touch 408-201-9411 [email protected] HVAC Specials & Promotions Take advantage of our current HVAC service specials and save on heating, cooling, and maintenance services throughout Santa Clara , San Mateo , and Contra Costa Counties $99 Maintenance Get your home ready for the colder months ahead with a professional seasonal maintenance check. Ensure your system runs efficiently, prevent unexpected breakdowns, and stay comfortable all winter long. Special Offers on Heating & Cooling Services Affordable Comfort for Your Home We believe comfort should be reliable and affordable. That’s why we offer seasonal promotions and service discounts to help homeowners keep their HVAC systems running efficiently without breaking the budget. Whether you need a system tune-up, repair service, or are considering upgrading to a new high-efficiency HVAC system, our current specials make it easier to invest in your home’s comfort. Comfort Solutions That Deliver Value Quality Service with Added Savings Join our HVAC Maintenance Membership and enjoy two annual system tune-ups, priority service scheduling, and exclusive discounts on repairs and diagnostics. Learn About Our Memberships Affordable Seasonal Promotions Professional HVAC Technicians Reliable Heating and Cooling Solutions Trusted Local HVAC Company HVAC Protection for Just $20 per Month Serving the Bay Area’s Finest Homes & Businesses Call (408) 201-9411 for an appointment for HVAC services Our team offers a combined 30 years of experience and is dedicated to always delivering premier customer service. We are more than just another HVAC company—we put courtesy and communication at the forefront of our services, so you can always trust you’re getting the highest-quality services. We are an accredited business with the BBB. Discover the DG difference and enjoy the peace of mind of a comfortable home. Contact Us Today Contact Us Black telephone receiver icon. 408-201-9411 Black envelope icon. [email protected] Black location marker. 1040 Commercial Street, STE 104, San Jose, California 95112, United States License #1035345 Proudly serving Santa Clara County San Mateo County Contra Costa County Find Us on © 2026  All Rights Reserved | DG Heating & Air Conditioning | Privacy Policy Air Conditioning Services AC Repair Air Conditioning Installation AC Maintenance Heating Services Heating Repair Furnace Installation Heat Pump Installation related Services Ductless Mini-Splits Indoor Air Quality HVAC Duct Replacement HVAC Maintenance Membership | DG Heating & Air | San Jose, CA Reviews  | financinG | Memberships | Blog | Specials   Home About Residential New Construction Light Commercial Contact Call Us Today – (408) 201-9411 Home About Air Conditioning Heating Services HVAC Duct Replacement Light Commercial New Construction Contact Memberships Specials Reviews Blog Get in touch 408-201-9411 [email protected] HVAC Maintenance Membership Keep your heating and cooling systems running efficiently year-round with DG Heating & Air Conditioning’s HVAC Maintenance Plan.  Protect Your Comfort With Our HVAC Membership Reliable Maintenance for Year-Round Performance Routine maintenance is one of the best ways to keep your HVAC system operating efficiently and reliably. DG Heating & Air Conditioning offers a convenient maintenance membership that includes seasonal tune-ups, priority scheduling, and exclusive discounts on repairs and services. With regular heating and cooling inspections, our technicians can identify potential issues early and keep your system performing at its best. For homeowners throughout San Jose and the Bay Area, our maintenance program provides peace of mind knowing their HVAC system is professionally maintained throughout the year. WHat does my membership include? perks of being a member Two Annual Maintenance Visits Your membership includes two seasonal tune-ups per year—one heating system service and one air conditioning service—to keep your HVAC equipment running efficiently. Priority Service Scheduling Members receive first-available scheduling, helping ensure reliable service when your HVAC system needs attention. Discounts on HVAC Services Members enjoy valuable savings on diagnostics, cleanings, and repair services throughout the year. Two annual HVAC maintenance services (heating & cooling) 50% discount on diagnostic fees 20% discount on system cleanings 10% discount on repairs HVAC Protection for Just $20 per Month heat pump system – $20 per month/unit Our maintenance visits include a detailed inspection and performance check of your HVAC equipment to ensure everything operates safely and efficiently. Inspect electrical connections and reversing valve Check refrigerant lines and system components Measure system performance and temperature split Inspect outdoor coil and fan components Lubricate moving parts and tighten electrical connections Eligibility begins the day you sign-up, and the program can be canceled any time after the first 90 days of paid membership . Cancellations before 90 days will result in a retroactive loss of any membership discounts received and will be payable to DG Heating & Air Conditioning. *A unit is a condenser or an air handler (Not all checklist items pertain to every maintenance) furnace system – $20 per month/system Our maintenance visits include a detailed inspection and performance check of your HVAC equipment to ensure everything operates safely and efficiently. Inspect burners, combustion chamber, and heat exchanger Check safety controls, gas lines, and thermostat operation Inspect blower motor, belts, and electrical connections Test manifold gas pressure and system operation Clean blower components and replace standard air filters if needed air conditioning system – $20 per month/system Our maintenance visits include a detailed inspection and performance check of your HVAC equipment to ensure everything operates safely and efficiently. Inspect wiring, refrigerant lines, and system components Check safety controls, gas lines, and thermostat operation Measure refrigerant levels and system amperage Inspect outdoor coils and system components for debris Lubricate moving parts and tighten electrical connections Eligibility begins on the day you sign up, and the program can be canceled at any time after the first 90 days of paid membership . Cancellations before 90 days will result in a retroactive loss of any membership discounts received and will be payable to DG Heating & Air Conditioning. *A system is composed of (1) furnace and (1) air conditioner  Serving the Bay Area’s Finest Homes & Businesses Call (408) 201-9411 for an appointment for HVAC services Our team offers a combined 30 years of experience and is dedicated to always delivering premier customer service. We are more than just another HVAC company—we put courtesy and communication at the forefront of our services, so you can always trust you’re getting the highest-quality services. We are an accredited business with the BBB. Discover the DG difference and enjoy the peace of mind of a comfortable home. Contact Us Today Contact Us Black telephone receiver icon. 408-201-9411 Black envelope icon. [email protected] Black location marker. 1040 Commercial Street, STE 104, San Jose, California 95112, United States License #1035345 Proudly serving Santa Clara County San Mateo County Contra Costa County Find Us on © 2026  All Rights Reserved | DG Heating & Air Conditioning | Privacy Policy Air Conditioning Services AC Repair Air Conditioning Installation AC Maintenance Heating Services Heating Repair Furnace Installation Heat Pump Installation related Services Ductless Mini-Splits Indoor Air Quality HVAC Duct Replacement New Construction HVAC | DG Heating & Air | San Jose, CA Reviews  | financinG | Memberships | Blog | Specials   Home About Residential New Construction Light Commercial Contact Call Us Today – (408) 201-9411 Home About Air Conditioning Heating Services HVAC Duct Replacement Light Commercial New Construction Contact Memberships Specials Reviews Blog Get in touch 408-201-9411 [email protected] New Construction HVAC Partner with DG Heating & Air Conditioning for complete HVAC design and installation on new construction projects throughout the Bay Area. From mechanical drawings to final system commissioning, we deliver reliable comfort solutions for luxury homes. Designed to Work Seamlessly With Your Build Team HVAC Coordination That Keeps Projects Moving DG Heating & Air Conditioning works closely with contractors, project managers, architects, and interior designers throughout the entire construction process. Our team coordinates system placement, duct routing, and installation timelines to ensure your project remains on schedule. We understand the importance of preserving architectural design while delivering powerful and efficient climate control systems. After installation, we perform a full series of operational tests to verify that every component is performing according to the manufacturer’s specifications. This ensures the HVAC system is operating safely, efficiently, and exactly as designed before project completion. Engineering the Perfect HVAC System for Your Project One-Stop HVAC Design, Planning, and Installation DG Heating & Air Conditioning provides a fully integrated design-build process for new construction projects to ensure accuracy, efficiency, and seamless coordination throughout your project. All Load Calculations Done In-House Manual J – Residential Load Calculation Determines the exact heating and cooling requirements for your building based on size, insulation, windows, and climate. Manual S – Equipment Selection Ensures HVAC equipment is properly sized and matched to the building’s load requirements. Manual T – Air Distribution Design Determines proper grille and register placement for balanced airflow and consistent comfort. Manual D – Duct System Design Engineers ductwork layouts that optimize airflow efficiency and system performance. Premium HVAC Equipment We Install Trusted Brands for Long-Term Performance DG Heating & Air Conditioning installs high-performance HVAC systems from leading manufacturers known for reliability, efficiency, and advanced technology. Some of the Top Manufacturers We Represent Mitsubishi Electric (Diamond Elite Dealer) American Standard / Trane Carrier / Bryant HVAC System Design & Engineering Our in-house design team develops HVAC systems specifically tailored to your building plans, ensuring proper airflow, efficiency, and comfort throughout the space. New Construction HVAC Installation We install complete HVAC systems for new homes, coordinating closely with builders and other trades. HVAC Systems for Remodels & Additions Major renovations and home expansions require updated HVAC planning. Our team designs systems that integrate seamlessly with existing structures while improving comfort. High-Efficiency and Smart HVAC Systems We install modern heating and cooling solutions including multi-zone systems, smart thermostats, and energy-efficient equipment designed to meet California energy standards. New Construction HVAC Questions Call Us Today Looking for an HVAC contractor for new home construction in the Bay Area? DG Heating & Air Conditioning provides complete HVAC design and installation services for custom homes and new construction projects across Santa Clara, San Mateo, and Contra Costa counties. Do you work with builders and architects during the design phase? Yes. Our team collaborates with architects, builders, and designers during early planning stages to ensure HVAC systems are properly engineered and integrated into the project. Can you design HVAC systems for luxury homes? Absolutely. We specialize in custom HVAC solutions including zoned systems, hidden duct installations, advanced filtration, and smart climate control systems. Do you handle permits and code compliance? Yes. Our team ensures that HVAC installations meet local building codes. How early should HVAC planning begin in a construction project? Ideally during the blueprint or planning phase so the system can be properly engineered and integrated into the building design. Serving the Bay Area’s Finest Homes & Businesses Call (408) 201-9411 for an appointment for HVAC services Our team offers a combined 30 years of experience and is dedicated to always delivering premier customer service. We are more than just another HVAC company—we put courtesy and communication at the forefront of our services, so you can always trust you’re getting the highest-quality services. We are an accredited business with the BBB. Discover the DG difference and enjoy the peace of mind of a comfortable home. Contact Us Today Contact Us Black telephone receiver icon. 408-201-9411 Black envelope icon. [email protected] Black location marker. 1040 Commercial Street, STE 104, San Jose, California 95112, United States License #1035345 Proudly serving Santa Clara County San Mateo County Contra Costa County Find Us on © 2026  All Rights Reserved | DG Heating & Air Conditioning | Privacy Policy Air Conditioning Services AC Repair Air Conditioning Installation AC Maintenance Heating Services Heating Repair Furnace Installation Heat Pump Installation related Services Ductless Mini-Splits Indoor Air Quality HVAC Duct Replacement Heating Repair | DG Heating & Air | Santa Clara, San Mateo, & Contra Costa Counties Reviews  | financinG | Memberships | Blog | Specials   Home About Residential New Construction Light Commercial Contact Call Us Today – (408) 201-9411 Home About Air Conditioning Heating Services HVAC Duct Replacement Light Commercial New Construction Contact Memberships Specials Reviews Blog Get in touch 408-201-9411 [email protected] Furnace Repair No heat on a cold night? Don’t panic. DG Heating & Air Conditioning provides reliable furnace repair across Santa Clara, San Mateo, and Contra Costa Counties, restoring warmth and comfort when your heating system stops working. Related services Heating Services Heating Repair Furnace Installation Heat Pump Installation Contact Us Reliable Furnace Repair When Your Heat Stops Working Even in the Bay Area’s mild winters, chilly evenings can make a broken furnace extremely uncomfortable. When your heating system suddenly stops working, you need a technician who can diagnose the issue quickly and restore heat without delay. DG Heating & Air Conditioning provides professional heating repair services for homeowners across San Jose and nearby communities. Our technicians arrive with fully stocked service vehicles and the training needed to repair most heating problems during the first visit. Whether your furnace is blowing cold air, refusing to start, or making unusual noises, we’ll pinpoint the cause and get your system working again safely and efficiently. Heating Systems and Problems We Repair Solutions for Every Furnace and Heater Issue Gas Furnace Repair We diagnose and repair ignition problems, gas valve failures, and airflow issues to restore reliable heating. Electric Furnace and Heater Repair Electric systems require specialized diagnostics. Our technicians repair electrical components and heating elements to restore proper operation. Heat Pump Heating Repair If your heat pump struggles to produce warm air, we identify refrigerant issues, sensor faults, or mechanical problems and restore efficient heating. Thermostat and Control Issues When thermostats malfunction or communicate incorrectly with your furnace, we recalibrate or replace components to restore accurate temperature control. Blower Motor and Airflow Problems Weak airflow or uneven heating may stem from blower motor failures or clogged components, which our team can quickly repair. Ignition and Pilot Light Problems Modern furnaces rely on ignition systems to operate safely. We repair or replace faulty igniters and pilot systems to restore heating safely. What to Expect During Your Furnace Repair Visit Professional Service From Start to Finish Thorough Heating System Diagnosis Our technicians perform a complete inspection to identify the exact cause of your heating problem. Clear Explanation and Honest Pricing Before starting repairs, we explain the issue and provide transparent pricing so you know exactly what to expect.  Reliable Heat Restored Before leaving your home, we test the system thoroughly to confirm safe and consistent heating performance. Furnace Repair Questions Homeowners Ask Schedule a Service Why is my furnace blowing cold air? Several issues can cause this problem, including thermostat malfunctions, ignition failures, clogged filters, or airflow problems. A professional inspection quickly identifies the cause so the system can be repaired properly. How quickly can I get my heater repaired in my area? DG Heating & Air Conditioning provides efficient heating repair services across San Jose and surrounding communities.Give us a call to schedule your repairs. What are common signs my furnace needs repair? Unusual noises, weak airflow, inconsistent heating, frequent cycling, or rising energy bills often indicate a heating system problem that requires professional attention. Is furnace repair expensive? Costs depend on the issue and replacement parts required. Many repairs are relatively affordable when addressed early, which is why prompt service is recommended. Serving the Bay Area’s Finest Homes & Businesses Call (408) 201-9411 for an appointment for HVAC services Our team offers a combined 30 years of experience and is dedicated to always delivering premier customer service. We are more than just another HVAC company—we put courtesy and communication at the forefront of our services, so you can always trust you’re getting the highest-quality services. We are an accredited business with the BBB. Discover the DG difference and enjoy the peace of mind of a comfortable home. Contact Us Today Contact Us Black telephone receiver icon. 408-201-9411 Black envelope icon. [email protected] Black location marker. 1040 Commercial Street, STE 104, San Jose, California 95112, United States License #1035345 Proudly serving Santa Clara County San Mateo County Contra Costa County Find Us on © 2026  All Rights Reserved | DG Heating & Air Conditioning | Privacy Policy Air Conditioning Services AC Repair Air Conditioning Installation AC Maintenance Heating Services Heating Repair Furnace Installation Heat Pump Installation related Services Ductless Mini-Splits Indoor Air Quality HVAC Duct Replacement HVAC Services Contra Costa County – DG Heating & Air Reviews  | financinG | Memberships | Blog | Specials   Home About Residential New Construction Light Commercial Contact Call Us Today – (408) 201-9411 Home About Air Conditioning Heating Services HVAC Duct Replacement Light Commercial New Construction Contact Memberships Specials Reviews Blog Get in touch 408-201-9411 [email protected] Premier Heating & Air Conditioning Services in Contra Costa Luxury Heating & Air Conditioning Services in Contra Costa County for Homes and Commercial Spaces Contact Us Today Licesnsed & certified technicians White-Glove Service Precision Installations Maintenance Memberships Custom HVAC Services Built for Comfort and Performance in Contra Costa County hvac solutions for homes & businesses In Contra Costa County, maintaining a comfortable indoor environment requires HVAC systems that can handle both warm days and cooler evenings. DG Heating & Air Conditioning offers tailored solutions for residential and commercial properties throughout the area. Our technicians provide expert service for everything from repairs to complete system installations. We also specialize in indoor air quality improvements, duct replacement, and modern heat pump systems designed for efficiency. Learn More About Us Dedicated HVAC Specialists Serving Contra Costa County Areas we serve DG Heating & Air Conditioning proudly serves Contra Costa County with professional HVAC solutions, delivering reliable heating, cooling, and indoor comfort services for homes and businesses throughout the region. DG Heating & Air Conditioning proudly serves Contra Costa County with reliable HVAC services designed to meet the needs of both residential and commercial properties. Our experienced technicians approach every project with care, ensuring systems are properly installed and maintained. We are dedicated to delivering comfort solutions that stand the test of time. Air Conditioning services Custom air conditioning services built for homes and businesses in Contra Costa County Heating services Efficient heating services built for residential and commercial spaces in Contra Costa County New Construction Comprehensive new construction HVAC services tailored for projects across Contra Costa County duct removal & replacement Comprehensive new construction HVAC services tailored for projects across Contra Costa County View More Services Frequently asked questions common faqs for Contra Costa Do you service homes and businesses in Contra Costa County? DG Heating & Air Conditioning offers professional HVAC services throughout Contra Costa County, delivering tailored heating, cooling, and system upgrade solutions for a wide range of residential and commercial properties. When should I repair or replace my HVAC system in Contra Costa County? If your system is aging, struggling to maintain comfort, or requiring repeated repairs, a professional inspection can help determine the most efficient and cost-effective path forward. What is the recommended HVAC maintenance schedule in Contra Costa County? Scheduling bi-annual maintenance visits helps keep your system running efficiently, improves indoor comfort, and reduces the likelihood of costly repairs over time. Trusted by  Contra Costa County Clients Customer testimonials on Google + Reviews Review us on Google Read More Reviews Ashwin A. Sabrina K. Joseph D. David K. Bay L. David P. Mike S. Diane F. 潔妮 William B. Mike A. Mike W. Dan H. Allison S. Janos E. Kelli B. Michael J. Halfdan H. Partha B. Sal B. Linda K. Miguel L. David L. Andrew N. Feng Y. Anna A. Qing T. E S. Linda L. Neal S. WK J. Patrick Y. Jack Y. Jeff B. See V. Alex B. Rob M. Morgan G. Jane M. Anthony S. Robert E. Scott B. Dave S. Jacqui K. Kuldeep S. Nikki T. John S. Brian T. James V. Deb K. Linda N. John W. David L. Amy J. Tssihoe Magnus K. Jerry F. Pascal R. Tamra C. Yan L. Craig G. Nancy T. Bernadette A. Mariam F. Robin G. Tami C. Vernon G. Eric C. Dr. M. Rajesh M. D T. Binh H. Gary W. Paul M. Brian A. Howard W. Deb M. Ken B. Ken M. Henry H. Heather S. Michael K. Mingrui B. Keith D. Ron H. Eric L. Russell B. Andres D. Michael M. Kevin W. Satish A. Pratibha S. Jason P. Eric W. Nancy S. K S. Sandy H. Sara S. Debra F. Leslie J. Gordon E. Patricia C. Tim D. Richard K. Soumyadeep G. Mark L. Jon P. David D. Ann-Christine S. John D. Tom M. Wendy P. Stacey B. Fatdrummer65 K K. Alex C. John W. Henry Y. Joseph D. Sonia W. Robert J. Nancy R. Sarah L. Keith Carlos Z. S T. Kevin Mourik N. Carlos-Gil T. Mark D. Bruce W. Muzzi K. Abhilash H. Christopher C. Nancy V. Sylvester G. Ann L. Roberts I. Matthew T. Mark G. Neeraj K. Kimberly C. Katherine B. Henrik P. Tisbe Douglas N. Jennifer D. Chip F. Mike P. Angela K. Yun O. Paul N. Louise G. Evan T. Manny K. Jennifer Ruby S. Debbie F. Sean K. Richard C. Serving the Bay Area’s Finest Homes & Businesses Call (408) 201-9411 for an appointment for HVAC services Our team offers a combined 30 years of experience and is dedicated to always delivering premier customer service. We are more than just another HVAC company—we put courtesy and communication at the forefront of our services, so you can always trust you’re getting the highest-quality services. We are an accredited business with the BBB. Discover the DG difference and enjoy the peace of mind of a comfortable home. Contact Us Today Contact Us Black telephone receiver icon. 408-201-9411 Black envelope icon. [email protected] Black location marker. 1040 Commercial Street, STE 104, San Jose, California 95112, United States License #1035345 Proudly serving Santa Clara County San Mateo County Contra Costa County Find Us on © 2026  All Rights Reserved | DG Heating & Air Conditioning | Privacy Policy Air Conditioning Services AC Repair Air Conditioning Installation AC Maintenance Heating Services Heating Repair Furnace Installation Heat Pump Installation related Services Ductless Mini-Splits Indoor Air Quality HVAC Duct Replacement Heating Services | DG Heating & Air | Santa Clara, San Mateo, & Contra Costa Reviews  | financinG | Memberships | Blog | Specials   Home About Residential New Construction Light Commercial Contact Call Us Today – (408) 201-9411 Home About Air Conditioning Heating Services HVAC Duct Replacement Light Commercial New Construction Contact Memberships Specials Reviews Blog Get in touch 408-201-9411 [email protected] Heating Services Stay warm and comfortable all winter with professional heating services from DG Heating & Air Conditioning. Our team provides dependable furnace repair, installation, and heating system maintenance for homes throughout Santa Clara, San Mateo, and Contra Costa Counties Complete Home Heating Solutions for the Bay Area Comfortable Homes Even on Chilly Nights While winters in San Jose are milder than in many parts of the country, temperatures can drop quickly after sunset. When the cold sets in, homeowners rely on dependable heating systems to keep their families comfortable and safe. DG Heating & Air Conditioning provides complete residential heating services designed for Bay Area homes, from furnace repairs to energy-efficient system upgrades. Our experienced technicians service modern furnaces, high-efficiency heating systems, and advanced heat pump technology. Heating Repair If your furnace stops working or struggles to heat your home evenly, our technicians can quickly diagnose the issue and restore comfort. We repair most heating systems in a single visit using fully stocked service vehicles. Heating Installation When your system is outdated or inefficient, upgrading to a modern heating system can dramatically improve comfort and efficiency. Our team installs high-efficiency furnaces and advanced heating solutions designed specifically for Bay Area homes. Heat Pump Heating Systems Heat pumps provide both heating and cooling in one highly efficient system, making them increasingly popular for Bay Area homes. These systems are ideal for mild climates and can significantly reduce energy consumption. Trusted Heating Professionals in Santa Clara, San Mateo, and Contra Costa Counties Reliable Comfort Backed by Experience Streamlined Heating Repairs When You Need Them Our technicians respond to all heating problems and often restore warmth the same day you call. Safe and Thorough System Inspections Every heating service includes detailed safety checks such as heat exchanger inspections and carbon monoxide safety verification. High-Efficiency Heating Upgrades Modern heating systems can dramatically improve energy efficiency, lowering heating costs while improving comfort. Local Experience With Bay Area Homes Our team understands how microclimates across the South Bay influence heating needs, ensuring the right system for your property. Clear Guidance on Heating Options Whether you’re deciding between a furnace or a heat pump, we explain the benefits of each solution so you can choose confidently. $99 maintenance Prepare your furnace for colder nights with our comprehensive heating system tune-up. Our seasonal maintenance service ensures your equipment operates safely, efficiently, and reliably throughout winter. Heating Service Questions Homeowners Ask Call Us Today Who can fix my furnace in Santa Clara, San Mateo, and Contra Costa Counties? DG Heating & Air Conditioning provides professional furnace repair services across San Jose and surrounding communities. Our technicians diagnose heating problems quickly and restore reliable warmth to your home. What’s better for Bay Area homes: a heat pump or a furnace? Both systems work well depending on the home. Heat pumps are very efficient in the Bay Area’s mild climate because they provide both heating and cooling. High-efficiency furnaces are still a strong option for homes with existing gas systems or those needing powerful heating during colder nights. How do I know if my heating system needs repair? Common signs include uneven heating, strange noises, higher energy bills, or a furnace that frequently cycles on and off. If you notice any of these issues, a professional inspection is recommended. How long does a furnace typically last? Most furnaces last between 15 and 20 years with proper maintenance. Regular tune-ups can extend system lifespan and improve efficiency. Serving the Bay Area’s Finest Homes & Businesses Call (408) 201-9411 for an appointment for HVAC services Our team offers a combined 30 years of experience and is dedicated to always delivering premier customer service. We are more than just another HVAC company—we put courtesy and communication at the forefront of our services, so you can always trust you’re getting the highest-quality services. We are an accredited business with the BBB. Discover the DG difference and enjoy the peace of mind of a comfortable home. Contact Us Today Contact Us Black telephone receiver icon. 408-201-9411 Black envelope icon. [email protected] Black location marker. 1040 Commercial Street, STE 104, San Jose, California 95112, United States License #1035345 Proudly serving Santa Clara County San Mateo County Contra Costa County Find Us on © 2026  All Rights Reserved | DG Heating & Air Conditioning | Privacy Policy Air Conditioning Services AC Repair Air Conditioning Installation AC Maintenance Heating Services Heating Repair Furnace Installation Heat Pump Installation related Services Ductless Mini-Splits Indoor Air Quality HVAC Duct Replacement Light Commercial HVAC Services | DG Heating & Air | San Jose, CA Reviews  | financinG | Memberships | Blog | Specials   Home About Residential New Construction Light Commercial Contact Call Us Today – (408) 201-9411 Home About Air Conditioning Heating Services HVAC Duct Replacement Light Commercial New Construction Contact Memberships Specials Reviews Blog Get in touch 408-201-9411 [email protected] Light Commercial HVAC Services DG Heating & Air Conditioning provides professional commercial HVAC solutions for businesses throughout San Jose and the Bay Area. From installation and system upgrades to repairs and maintenance, we keep your building comfortable and operating efficiently. HVAC Solutions Designed for Businesses Reliable Heating and Cooling for Commercial Spaces Businesses rely on dependable heating and cooling to keep employees comfortable, customers happy, and operations running smoothly. DG Heating & Air Conditioning provides commercial HVAC services tailored to offices, retail spaces, multi-unit residential buildings, and light industrial facilities throughout San Jose. Our experienced technicians install, repair, and maintain commercial-grade HVAC systems capable of handling larger spaces and complex building layouts. Whether you manage a boutique storefront or a multi-tenant commercial property, we deliver dependable solutions that ensure consistent comfort and efficiency. A Trusted Commercial HVAC Partner Expertise for Complex HVAC Systems Experience With Commercial Systems We install and service rooftop units, multi-zone systems, and advanced commercial HVAC equipment. Proven Project Experience Our portfolio includes large-scale residential and commercial projects, including multi-unit building installations with dozens of HVAC systems. Energy-Efficient System Upgrades We help businesses improve efficiency and reduce operating costs with modern HVAC equipment and smart control systems. Prevent unexpected system failures with professional HVAC maintenance. Our seasonal service helps keep commercial heating and cooling systems operating efficiently. Air Conditioning Repair & Installation Our technicians repair, install, and upgrade commercial air conditioning systems to ensure consistent cooling for offices, retail spaces, and multi-unit buildings. Heating Repair & Installation From furnace repairs to complete heating system installations, our team ensures reliable warmth and efficient heating performance for commercial buildings. Indoor Air Quality Systems Improve workplace comfort and health with whole-building air purification, filtration systems, and ventilation upgrades designed for commercial HVAC systems. Duct Removal & Replacement We inspect, and replace aging commercial duct systems to improve airflow, efficiency, and indoor air quality throughout your building. Ductless Mini-Split Systems Ductless mini-split systems provide flexible heating and cooling for offices, server rooms, additions, or commercial spaces without ductwork. Commercial HVAC Questions Businesses Ask Call Us Today Looking for a reliable commercial HVAC contractor? DG Heating & Air Conditioning provides professional commercial HVAC services for offices, retail spaces, and multi-unit buildings across the Bay Area. Do you provide commercial HVAC maintenance plans? Yes. We offer preventative maintenance programs designed to reduce downtime and ensure commercial HVAC systems operate reliably throughout the year. Can you replace older commercial HVAC systems? Yes. We upgrade outdated systems with modern high-efficiency equipment designed to improve comfort while reducing energy costs. Do commercial HVAC systems require permits in California? Many installations and system replacements require permits. Our team can guide you through this process." Serving the Bay Area’s Finest Homes & Businesses Call (408) 201-9411 for an appointment for HVAC services Our team offers a combined 30 years of experience and is dedicated to always delivering premier customer service. We are more than just another HVAC company—we put courtesy and communication at the forefront of our services, so you can always trust you’re getting the highest-quality services. We are an accredited business with the BBB. Discover the DG difference and enjoy the peace of mind of a comfortable home. Contact Us Today Contact Us Black telephone receiver icon. 408-201-9411 Black envelope icon. [email protected] Black location marker. 1040 Commercial Street, STE 104, San Jose, California 95112, United States License #1035345 Proudly serving Santa Clara County San Mateo County Contra Costa County Find Us on © 2026  All Rights Reserved | DG Heating & Air Conditioning | Privacy Policy Air Conditioning Services AC Repair Air Conditioning Installation AC Maintenance Heating Services Heating Repair Furnace Installation Heat Pump Installation related Services Ductless Mini-Splits Indoor Air Quality HVAC Duct Replacement Heat Pump Installation | DG Heating & Air | San Jose, CA Reviews  | financinG | Memberships | Blog | Specials   Home About Residential New Construction Light Commercial Contact Call Us Today – (408) 201-9411 Home About Air Conditioning Heating Services HVAC Duct Replacement Light Commercial New Construction Contact Memberships Specials Reviews Blog Get in touch 408-201-9411 [email protected] Heat Pump Installation Looking for a modern HVAC system that both heats and cools your home? DG Heating & Air Conditioning installs high-efficiency heat pump systems designed for year-round comfort across Santa Clara, San Mateo, and Contra Costa Counties Related services Heating Services Heating Repair Furnace Installation Heat Pump Installation Contact Us Heat Pumps for Efficient Heating and Cooling One System for Year-Round Comfort A heat pump is an all-in-one electric HVAC system that both heats and cools your home. During summer, it works like a traditional air conditioner by removing heat from inside your home. In winter, it reverses direction and pulls heat from the outside air to warm your living space. Because the Bay Area rarely experiences extreme winter temperatures, heat pumps perform exceptionally well in this climate. Many San Jose homeowners are switching to heat pumps for their efficiency, environmental benefits, and ability to replace both an aging furnace and AC with a single modern system. Heat Pump Services We Provide Complete Solutions for Modern HVAC Systems Heat Pump Installation Our team installs advanced heat pump HVAC systems designed for efficient heating and cooling throughout your home. Heat Pump Replacement If your current HVAC system is outdated, replacing both your furnace and air conditioner with a heat pump can simplify your system while improving efficiency. Heat Pump Repair Our technicians diagnose and repair common issues such as refrigerant leaks, airflow problems, and sensor malfunctions. Heat Pump Maintenance Routine maintenance helps ensure your system continues operating efficiently year-round while preventing unexpected breakdowns. High-Efficiency Variable-Speed Systems Modern heat pumps use advanced compressors that adjust output automatically, maintaining consistent temperatures and improving comfort. Why Heat Pumps Are Ideal for Bay Area Homes Efficient Comfort Designed for California Living Heating and Cooling in One System Heat pumps provide both heating and air conditioning, simplifying your HVAC setup. Outstanding Energy Efficiency Modern heat pumps can deliver several units of heating energy for every unit of electricity used, making them extremely efficient. Lower Environmental Impact Many homeowners choose heat pumps to reduce reliance on natural gas and lower their household carbon footprint. Quiet Operation Today’s high-efficiency heat pumps operate quietly, often producing less noise than traditional HVAC systems. Potential Energy Rebates Homeowners in Santa Clara County and throughout California may qualify for incentives when upgrading to efficient heat pump systems. Heat Pump Questions Homeowners Ask Schedule a Service Do heat pumps work for heating and cooling in California? Yes. Heat pumps are ideal for Bay Area homes because they efficiently provide both heating and cooling using a single system. Heat pump vs traditional AC – which is better in California? Traditional AC systems only provide cooling, while heat pumps deliver both heating and cooling. For many California homes, a heat pump offers greater efficiency and year-round functionality. Can a heat pump replace my furnace? In many Bay Area homes, yes. Modern heat pumps are capable of providing sufficient heat even on cooler winter nights. In some cases, homeowners choose hybrid systems that combine a heat pump with a furnace for additional flexibility. How long do heat pumps last? Most heat pumps last between 15 and 20 years with proper maintenance, similar to the lifespan of many central air conditioning systems. Are heat pumps noisy? No. Modern heat pumps are designed to operate quietly, often producing less noise than traditional HVAC equipment. Serving the Bay Area’s Finest Homes & Businesses Call (408) 201-9411 for an appointment for HVAC services Our team offers a combined 30 years of experience and is dedicated to always delivering premier customer service. We are more than just another HVAC company—we put courtesy and communication at the forefront of our services, so you can always trust you’re getting the highest-quality services. We are an accredited business with the BBB. Discover the DG difference and enjoy the peace of mind of a comfortable home. Contact Us Today Contact Us Black telephone receiver icon. 408-201-9411 Black envelope icon. [email protected] Black location marker. 1040 Commercial Street, STE 104, San Jose, California 95112, United States License #1035345 Proudly serving Santa Clara County San Mateo County Contra Costa County Find Us on © 2026  All Rights Reserved | DG Heating & Air Conditioning | Privacy Policy Air Conditioning Services AC Repair Air Conditioning Installation AC Maintenance Heating Services Heating Repair Furnace Installation Heat Pump Installation related Services Ductless Mini-Splits Indoor Air Quality HVAC Duct Replacement Contact Us | DG Heating & Air | SJ Reviews  | financinG | Memberships | Blog | Specials   Home About Residential New Construction Light Commercial Contact Call Us Today – (408) 201-9411 Home About Air Conditioning Heating Services HVAC Duct Replacement Light Commercial New Construction Contact Memberships Specials Reviews Blog Get in touch 408-201-9411 [email protected] Contact Your Heating & Air experts today 408-201-9411 [email protected] Reach our Bay Area team for efficient, reliable HVAC help. Call, email, or use our quick form—serving Bay Area homes & businesses with white-glove comfort. Contact Us Name: Last Name Email: Phone: Street Address: City: ZIP: Service Requested Please tell us how we can help you: Opt-in Yes, I want to receive updates, offers, and news via text message from DG Heating & Air Conditioning. By providing my phone number and checking this box, I agree to receive recurring text messages. Message and data rates may apply. Reply STOP to unsubscribe. Free Text View our Privacy Policy . Thank you for contacting us. We will get back to you as soon as possible. Oops, there was an error sending your message. Please try again later. here for when you need us Black telephone handset. 408-201-9411 Black envelope icon. [email protected] Black location marker. 1040 Commercial Street, STE 104, San Jose, California 95112, United States Serving the Bay Area’s Finest Homes & Businesses Call (408) 201-9411 for an appointment for HVAC services Our team offers a combined 30 years of experience and is dedicated to always delivering premier customer service. We are more than just another HVAC company—we put courtesy and communication at the forefront of our services, so you can always trust you’re getting the highest-quality services. We are an accredited business with the BBB. Discover the DG difference and enjoy the peace of mind of a comfortable home. Contact Us Today Contact Us Black telephone receiver icon. 408-201-9411 Black envelope icon. [email protected] Black location marker. 1040 Commercial Street, STE 104, San Jose, California 95112, United States License #1035345 Proudly serving Santa Clara County San Mateo County Contra Costa County Find Us on © 2026  All Rights Reserved | DG Heating & Air Conditioning | Privacy Policy Air Conditioning Services AC Repair Air Conditioning Installation AC Maintenance Heating Services Heating Repair Furnace Installation Heat Pump Installation related Services Ductless Mini-Splits Indoor Air Quality HVAC Duct Replacement