Areas served: Sunnyvale, CA and surrounding Santa Clara County
Sunnyvale's Mediterranean climate creates unique HVAC demands, with cooling needs dominating summer months when temperatures regularly exceed 85°F, while mild winters still require efficient heating systems. This directory catalogs licensed HVAC contractors serving Sunnyvale and surrounding Santa Clara County communities, evaluated on factors including emergency response capabilities, energy efficiency expertise, and dual-system maintenance proficiency. Providers listed maintain California C-20 HVAC licenses and serve both residential and commercial properties throughout the region.
TRIO Heating, Air & Plumbing is a full-service HVAC and plumbing company serving San Jose and the Greater Bay Area with 24/7 emergency service. They're the only certified Daikin 3E partner in California, specializing in eco-friendly heat pump conversions, air quality solutions, and comprehensive plumbing services. With a 4.9-star rating from over 5,000 reviews and a team of professionally trained technicians, TRIO combines rapid response times with a commitment to environmental responsibility—planting one tree for every job completed.
“Recommendation for Edwin Naranjo - HVAC Technician I am pleased to recommend Edwin Naranjo of TRIO Heating, Air & Plumbing for his exemplary technical skills and customer service. Edwin recently serviced my HVAC system during an emergency breakdown in the middle of winter. His thorough diagnostic inspection, efficient repair work, and clear communication throughout the process were outstanding. He took the time to explain the root cause of the failure and provided valuable insights for system maintenance. His professionalism and technical expertise not only resolved my immediate crisis but saved me significant time and money. Edwin represents the highest standards of the HVAC profession.”
— Naresh Duggal, Google Review · 4.9 ★ avg from 1203 reviewsHeating and Air Experts is a Diamond Certified HVAC contractor serving Fremont, CA and the greater Bay Area with over 10 years of experience. Their team of certified technicians specializes in residential and commercial heating, cooling, air duct cleaning, and thermostat installation, offering 24/7 emergency service with upfront pricing and same-day availability. With a perfect 5.0-star rating from 778+ Google reviews, they're known for fast response times, honest diagnostics, and no-pressure recommendations.
“My downstairs furnace stopped working last night. This morning I tried everything Google Gemini suggested from a DIY and realized gas valve was not working. Call Heating and Air Experts to schedule a repair. Sent them the model number and they provided a quote (a bit pricy on the part cost, but I guess that's how it works). The HVAC tech who came home was Abe. A very gentle and honest person and felt comfortable working with him. He knows what he is doing. He quickly swapped out the gas valve and then suggested to swap the controller board (both were 27 years old). He offered other types of repairs, which were a bit steep and I choose not to go forward. But he was amazing and quick in doing the work on a Sunday and get my system back up. He also helped negotiate a lower price on the controller and labor as well as maintenance service on both furnaces (he has to come back to do it). Very easy company to work with and Abe is great! Definitely recommend and suggest you ask for him, if you have any HVAC needs. Thanks Heating and Air Experts for fixing my furnace on a Sunday!!!”
— Duke Tallam, Google Review · 5 ★ avg from 777 reviewsNur HVAC is a leading HVAC contractor serving Mountain View, CA and the greater San Mateo County area, with a perfect 5-star rating from 389 reviews. The company specializes in high-efficiency heat pump installations, ductless mini-split systems, and dual-fuel systems, and holds Diamond-level certification from Mitsubishi for installation quality. Their team of certified technicians—including owner Artur and lead installers Elias, Eldar, and Maxim—is known for meticulous workmanship, transparent pricing, and same-week service for both residential and commercial clients.
“We replaced our 25-year old single phase gas furnace with a Mitsubishi HVAC heat pump this summer. Now that we’ve used it for both cooling and heating, I’d like to give the team at Nur a five-star rating for their clean, smooth installation. Communication was great and they were thoughtful about system design so that we don’t have exterior conduits. We are so happy with the operation of the system for heating: it is quiet and so much more effective than our old furnace. We can highly recommend Nur.”
— Janet Lorenzin, Google Review · 5 ★ avg from 388 reviewsBodnar Heating & Air Conditioning is a third-generation family HVAC company serving Redwood City and the Mid-Peninsula since 1976. Led by John, a repair specialist with 20+ years of experience, they focus on honest diagnostics and repair-first solutions rather than unnecessary replacements. Their technicians work without commission, ensuring no-pressure service for residential furnace, A/C, and heat pump repair, maintenance, and installation across San Mateo County.
“We had an issue with our heating unit where there was a gas smell. We had another company come and “fix” it, but the smell persisted. I called Bondar and John came (owner) and diagnosed it in less than 5 minutes. He was knowledgeable , personable and I wouldn’t hesitate to use him in the future and highly recommend”
— Michael Basch, Google Review · 5 ★ avg from 281 reviewsGolden Comfort AC & Heating Repair is a locally-based HVAC contractor serving San Jose and the Bay Area with 24/7 emergency service. Their team of fully licensed and insured technicians specializes in AC repair, furnace installation, heat pump service, and seasonal maintenance tailored to San Jose's unique climate. With a 5.0-star rating from 109+ Google reviews and emergency response times under 2 hours, they serve neighborhoods from downtown San Jose to Willow Glen and Evergreen with transparent pricing and no hidden fees.
Iris Mechanical Inc is a licensed, insured, and EPA-certified HVAC contractor serving the Bay Area with expertise in heating, cooling, heat pump installation, mini splits, ductwork, and emergency repairs. Founded and operated by owners Alex and Nikita, the company specializes in high-efficiency system installations, maintenance, and same-day repairs across major brands like Carrier, Bryant, Trane, and Mitsubishi Electric. They stand out for transparent pricing, no-pressure estimates, responsive same-day service when possible, and a satisfaction guarantee backed by strong warranties.
Service Champions is San Jose's leading provider of whole-home comfort services, operating 24/7 since 2003. With 3,484+ five-star reviews and a 4.9-star rating, their certified HVAC technicians, electricians, and plumbers serve Santa Clara County with industry-leading tools and a 100% money-back satisfaction guarantee. They specialize in heating, cooling, plumbing, electrical, drain/sewer, insulation, and water services, offering same-day emergency repairs and comprehensive solutions from routine maintenance to full system replacements.
“I contacted another HVAC company and they told me the earliest appointment was 12/22/25. I then contacted Service Champions. I was able to get an appointment on 12/12/25. They arrived on time and did a complete service on my heater with recommendations. Within an hour Chris, Comfort Advisor, came to my house. With the California restrictions went over my limited options. Set an appointment for the install of a new heater and duck work for 12/17/25. Great service.”
— John Becker, Google Review · 4.9 ★ avg from 3477 reviewsIRBIS Air, Plumbing & Electrical is a comprehensive home services company serving the San Francisco Bay Area, specializing in HVAC, plumbing, and electrical solutions. As a Carrier Factory Authorized Dealer and President's Award winner, they employ NATE-certified technicians and offer repairs, installations, maintenance plans, and energy audits with a 100% satisfaction guarantee. Their fully-stocked service vans enable same-day fixes for most issues, and they serve Alameda, Santa Clara, and San Mateo Counties.
AIS Heating & Air Conditioning is a family-owned HVAC company serving Fremont, Livermore, and the broader Bay Area since 2008. Their team of certified technicians specializes in installation, repair, and maintenance of all major heating and cooling brands, plus comprehensive indoor air quality solutions including air purifiers, humidifiers, and ductwork services. With 24/7 emergency service, transparent pricing, and a 4.9-star rating from 750+ Google reviews, AIS has built a reputation for quality workmanship and superior customer care in the local community.
“Art always returned every phone call and email promptly. I appreciate how much time, effort, and importance he placed on our order. Thanks again to him and his Team for their professionalism and excellent job. For our experience with AIS Heating and Air Conditioning Company, I am extremely impressed with the technicians, Fausto and Abel. Before the installation, they communicated with us thoroughly, patiently listening to our needs and offering professional advice. They addressed the removal of an old Gas Furnace and replaced it with a new Heat pump system. They worked hard, climbing into the attic and crawling through tight spaces, and did an excellent job. Once the system was in place, they carefully explained to us how to operate it. They are very professional and knowledgeable about the Heat Pump system. The installation looks tidy, and they did a fantastic job cleaning the site. Thanks again for their hard work and excellent job. I would highly recommend them and the AIS Team to anyone interested in Heat Pump installation. The final Heat Pump installation exceeded our expectations. Awesome!”
— Daniel Allan B Saul, Google Review · 4.9 ★ avg from 756 reviewsAir Care Heating & Cooling Inc. has served San Jose and the greater Bay Area since 2013, specializing in residential and commercial HVAC repair, installation, and maintenance. As a locally owned company built on honesty and expertise, they offer 24/7 emergency service and are certified Bryant product dealers. With a 4.9-star rating from 435+ Google reviews, Air Care is known for transparent pricing, skilled technicians, and personalized solutions that keep homes and businesses comfortable year-round.
“James did an excellent job with the safety check of my HVAC system and was patient in explaining the details of all that he found. He was straightforward with his recommendations and let me decide if/when I want to get those addressed. Very thorough and professional! Highly recommend Air Care Heating & Cooling!”
— Anirudh Daga, Google Review · 4.9 ★ avg from 433 reviewsSandium Heating & Air Conditioning is a full-service HVAC company serving San Jose and Silicon Valley since 2001, led by licensed engineers holding C-20, C-2, and General Building Contractor certifications. They specialize in precision HVAC design using advanced load calculation tools, energy-efficient heat pump installations, electrification retrofits, and whole-home comfort solutions tailored to the Bay Area's unique microclimates. With a 4.9-star Google rating from 315+ reviews and backing from the P1 Service Group, Sandium delivers engineering-first HVAC services across San Jose, from historic Japantown bungalows to modern Willow Glen townhomes.
“I had Sandium come out for a furnace inspection and tuneup. I was able to schedule my appointment entirely online. I received a text to confirm my appointment, and their technician Christopher arrived right on schedule. Christopher explained each test as he was performing it, and offered tips to maximize the life and efficiency of my furnace. I highly recommend Sandium for your HVAC needs.”
— John Wilson, Google Review · 4.9 ★ avg from 315 reviewsFuse HVAC, Refrigeration, Electrical & Plumbing is a full-service contractor serving the San Jose and Mountain View area with 15+ years of experience. They specialize in same-day HVAC service, residential and commercial electrical work, and emergency plumbing, all backed by up to 12 years of labor warranty on HVAC installations. With 24/7 availability and a 4.9-star rating across 2,700+ reviews, Fuse is known for competitive pricing, rapid response times, and exceptional craftsmanship. Their team includes factory-trained technicians and they operate a Daikin HVAC showroom for hands-on product demos.
“Our A/C was nearing the end of its life and we thought about replacing it (and the home furnace) with a heat pump. I had asked a friend who had his home HVAC upgraded for recommendation(s) and he recommended FUSE, so we contacted them for a quote. Jeff came to check out the project. He was very knowledgeable, pleasant and patiently answered all our questions. He sent us three quotes and we decided to go with a Daikin heat pump system. Our installers, Andy and "Ace" were both friendly and professional. It took them two days to install the system. Our system is in the attic and they have done a really clean job with the installation. Frankly, the attic looks cleaner now than when they started! Our attic used to have a pull-string light and they replaced it with a proper electrical outlet with a switch. They didn't have to do that, but it is much nicer now. In addition they replaced an outdoor outlet with a proper GFCI outlet with a weather-proof cover. During the installation they did run into some snag with the thermostat, but they worked diligently to resolve it. During this whole process I also worked with their rebate and permit coordinator, Maria, and she was very efficient and prompt in replying to my emails. One thing I would like to see FUSE improve on is to unify their multiple CRM systems and provide a consistent number to call. Different emails had different reply-to addresses. It made some of the communication a bit confusing. In spite of that, they have been great to work with and I will definitely contact them for any future work (such as replacing the gas water heater.)”
— Adil Lotia, Google Review · 4.9 ★ avg from 216 reviewsCostLess Heating & Cooling is a highly-rated HVAC contractor serving Milpitas and the South Bay area with a 4.9-star rating from over 200 Google reviews. They specialize in heating and air conditioning installation, repair, and maintenance for residential and commercial properties. Known for transparent pricing, professional service, and same-day emergency repairs, they serve homeowners and businesses throughout Santa Clara County.
Global Heating and Cooling Services is a family-owned HVAC provider serving the San Jose and Bay Area since 2010. They offer comprehensive heating and cooling solutions including AC repairs and replacements, furnace repairs, heat pump conversions, duct cleaning, and system tune-ups—with expertise in restoring complex or aging HVAC systems. Licensed, bonded, and insured with over 550 completed permitted projects, they deliver same-day service with transparent pricing and manufacturer-backed warranties.
United HVAC, Plumbing & Electrical is a full-service home contractor in Santa Clara serving the San Jose area with HVAC repair, plumbing, and electrical services. Operating since 2019 with over 25 years of combined technician experience, they handle everything from emergency heating and cooling repairs to residential plumbing and electrical work, plus commercial HVAC systems for offices and larger buildings. They offer same-day service, free estimates, 1+ year warranties, and 0% interest financing options.
A & H is a licensed and insured HVAC contractor serving San Jose and the surrounding Bay Area with heating, cooling, and air quality solutions for residential and commercial properties. They specialize in system installation, repair, and maintenance, with expertise in heat pump technology and energy-efficient upgrades. The team is known for prompt service and detailed diagnostics to keep homes and businesses comfortable year-round.
Green Future Heating & Air Conditioning is a San Jose-based HVAC company specializing in heat pump installation and repair, furnace replacement, air conditioning repair, and emergency 24/7 service across the Bay Area. They offer comprehensive services including smart thermostat integration (Nest, Ecobee, Honeywell), indoor air quality solutions, ductwork services, and seasonal maintenance tailored to the Bay Area's unique climate. The team combines advanced HVAC technology with eco-conscious practices and serves both residential and commercial properties with free consultations and same-day repair availability.
Monteros Heating and Air is a Mountain View-based HVAC company specializing in residential and commercial heating, cooling, and refrigeration services. They offer HVAC installation, repair, maintenance, and preventive maintenance plans for all makes and models, as well as commercial air conditioning and refrigeration solutions for retail and food service businesses. The team of experienced technicians focuses on energy efficiency, prompt service, and customer satisfaction with free quotes available.
Made Simple Heating and Air is a locally operated, LGBTQ-owned HVAC company serving Santa Clara County and San Mateo County. Their factory-trained, licensed technicians provide 24/7 emergency service for heating, cooling, and air quality systems, specializing in energy-efficient installations and repairs with transparent pricing. They offer free estimates, flexible financing through Wells Fargo and GoodLeap (0% interest for 12 months), and help homeowners access rebates from Peninsula Clean Energy, Silicon Valley Clean Energy, Silicon Valley Power, 3CE, and Tech Clean Energy.
“Grade=A, Great company. I checked CHATGPT and Yelp for the best HVAC company with low cost and Made Simple Heating showed up. I did a request for quotes from top 3 vendors and Made Simple Heating tied for the lowest cost. Of the vendors, Made Simple Heating was most knowledgeable and most helpful, especially related to available rebates. My high opinion of Made Simple Heating was confirmed by a state sponsored third-party testing company for HVAC who said that Made Simple was one of their top 5 vendors. Made Simple is large enough to offer a wide range of services and small enough to offer personal services that larger vendors do not offer. Best of all, Made Simple helped me get a $7,500 rebate that the other vendors did not offer with the necessary help to meet the rebate filling anticipated deadline. They did all the extensive paperwork to submit the rebate paperwork, which is a great level of service. From the start, I was impressed with Made Simple Heating. I was able to talk to one of the co-owners regarding my unique needs. He sent a qualified sales person the next day whereby other vendors required 1+ week lead time. I had a unique need of wanting to use a particular Honeywell thermostat whereby other vendors wanted to use their preferred thermostat. They granted my request. Beyond my immediate HVAC needs, the sales rep recommended a great electrician for another job I had and recommended a great window AC for my Man Cave.”
— dirk heartman, Google Review · 5 ★ avg from 103 reviewsEVS Mechanical Inc is a licensed and insured Bay Area HVAC contractor specializing in heat pump installation, mini split systems, furnace replacement, and HVAC repair for residential and commercial properties. Based in Santa Clara, they handle the complete installation process including permitting, inspections, and follow-up service with certified technicians and upfront pricing. They serve major clients like Amazon and the City of Mountain View while bringing the same reliability to homeowner projects.
South Bay Heating and Cooling is a locally-owned HVAC contractor serving Cupertino and the South Bay area. They specialize in Bryant heating and air conditioning installations, plus service and repair of all major brands. Known for their personalized approach — they take time to understand how you use your current system before recommending replacements — they maintain a 4.9-star Google rating from 70+ reviews.
Fuse Service is a full-service contractor offering HVAC, electrical, plumbing, and commercial refrigeration to Santa Clara and surrounding areas. With over 15 years of experience, they specialize in same-day service for residential and commercial clients, backed by industry-leading warranties up to 12 years on labor and parts. Their team combines deep product knowledge with responsive communication, offering free estimates, flexible financing, and professional installation of heating, cooling, heat pump, and water heating systems.
Max Household Services Inc. is a full-service HVAC contractor in Santa Clara specializing in air conditioning repair, installation, and maintenance, as well as furnace and heating services. The experienced team handles emergency repairs, thermostat installation, and maintenance for residential and commercial properties across Santa Clara and surrounding areas. They service all makes and models with a focus on affordable, professional service backed by thousands of satisfied customers.
Valley Heating, Cooling, Electrical and Solar is a full-service contractor serving San Jose and the greater Santa Clara Valley. With a 4.8-star rating from 289+ Google reviews, they specialize in HVAC installation and repair, electrical services, and solar panel installations for residential and commercial properties. Their team handles everything from AC replacements and furnace repairs to panel upgrades and complete solar system design.
Mountain View Heat & Air Conditioning is a locally-operated HVAC contractor serving Mountain View, CA and the surrounding Peninsula communities. They specialize in heating and air conditioning installation, repair, and maintenance for residential and commercial properties. With a perfect 5-star rating from 20+ Google reviews and extended hours seven days a week, they've built a reputation for responsive, quality service in the Bay Area's competitive HVAC market.
Precision Air Conditioning & Heating is a highly-rated HVAC contractor serving Sunnyvale and the greater Silicon Valley area. With a perfect 5-star rating from 23 Google reviews, they specialize in residential and commercial heating and air conditioning installation, repair, and maintenance. Known for responsive service with extended hours 7 days a week, they provide reliable climate control solutions for Bay Area homes and businesses.
“They put a new HVAC system in our house, and we are thrilled. They advised us on the best system, explained the installation, and completed on time. The crew was polite and thorough. Now our house is cozy year-round.”
— Amy Hilliard, Google Review · 5 ★ avg from 22 reviewsSame Day Air Conditioning & Heating is a licensed HVAC contractor serving Hayward, Oakland, and the greater San Francisco East Bay area since 1995. Their technicians specialize in installation, repair, and maintenance of all major heating and cooling brands, with 24-hour emergency service and most parts stocked on trucks for same-day repairs. With a 4.5-star rating from 699 Google reviews, they're known for fast response times, upfront pricing, and expertise in both residential and light commercial systems.
Heating And Air Experts is the top-ranked HVAC contractor in the Sunnyvale area with a Lantern Score of 85.73/100 and 5-star rating from 777 reviews. They're a Diamond Certified contractor with over 10 years of experience serving the Bay Area and specialize in residential and commercial heating, cooling, and energy-efficient upgrades.
Golden Comfort AC & Heating Repair, Made Simple Heating And Air, and Green Future Heating & Air Conditioning all offer 24/7 emergency HVAC service. Golden Comfort (Lantern Score: 84.63) serves San Jose with fast emergency repairs, while Made Simple (Lantern Score: 82.88) serves Santa Clara and San Mateo Counties and is LGBTQ-owned.
Nur HVAC (Lantern Score: 85.57) specializes in energy-efficient heat pump upgrades and is highly recommended for homeowners seeking expert guidance on system selection. They're a certified contractor serving the Bay Area with 5-star rating from 388 reviews and comprehensive installation expertise.
Bodnar Heating & Air Conditioning, Inc. (Lantern Score: 85.44) is ideal for homeowners seeking honest repairs without pressure and those wanting a second opinion before system replacements. As a family-owned business serving the Peninsula for over 50 years, they're known for transparent, trustworthy service.
Yes, several contractors offer multiple services. Service Champions (Lantern Score: 84.11), IRBIS Air, Plumbing & Electrical (84.07), TRIO Heating, Air & Plumbing (84.05), and Fuse HVAC (83.60) all provide HVAC plus plumbing and/or electrical services, making them convenient for whole-home projects.
Valley Heating, Cooling, Electrical and Solar (Lantern Score: 82.00) is a family-owned company serving San Jose, Silicon Valley, and the Peninsula since 1962. For more specialized focus, Bodnar Heating & Air Conditioning has served the Peninsula for over 50 years with family expertise, and Global Heating and Cooling Services has been family-owned since 2010.