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A-1 Guaranteed Heating & Air
- Attic
- Clean
- Thermostat
“My air conditioner stopped working, and the first company I called came out and told me there was no way to fix it, and I would have to get a new system.”
Best HVAC Contractors in Vallejo, CA
24 companies listed · 4 in Vallejo · 7 open 24/7 · 15 open weekends · 22 rated 4.5+
Data verified October 18, 2026
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Golden Gate Technical Hvac
“Excellent service and quality”
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Dormatech Mechanical Systems
“I called to ask a few questions about Dormatech's operations, equipment, services, etc.”
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Climate Concepts
“He's extremely knowledgeable and has great experence in all phases of HVAC and electrical.”
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Green Air Heating and Air Conditioning
- Efficient
- House
- Tesla
“During the this current supply chain crisis, Green Air was able to fix both of our furnaces during the coldest months of the winter by securing rare parts so that we wouldn't freeze in our own home.”
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Contra Costa Climate Control
- Employees
- Furnace
- Happy
“Our ac wasn't turning on so we called contra costal climate control and they came out within the next day, javier was the service tech and luckily he said it was a easy fix and got us up and going in no time.”
The 24 companies listed for Vallejo, CA work on furnaces, heat pumps and air conditioners. Each profile repeats what the company publishes about its hours, its license and the equipment it fits, alongside ratings and quotes drawn from public reviews.
Area overview: Vallejo, CA
Of the 24 companies we list here, 4 are in Vallejo itself and 20 come from towns including Concord (8, 16 mi), Benicia (2, 6 mi) and Pleasant Hill (2, 15 mi). The companies on this page are rated from 4.0 to 5.0 across 5,284 reviews; 16 have 50 or more reviews and 22 are rated 4.5 or higher. When customers rate these companies on specific qualities, they most often praise professionalism (88%), responsiveness (80%) and quality (77%). 7 are open around the clock; 15 are open on Saturdays and 10 on Sundays. The services the companies on this page list most often on their websites are heating (6), air conditioning (5), indoor air quality (5), water heaters (3) and air conditioning services (2). 13 show a license on their websites; 6 list staff certifications (EPA and NATE) and 5 have a BBB rating of A or A+. 16 have ten or more years of experience, the longest 58 years. 8 offer emergency call-outs; 12 offer financing or payment plans; 10 give free estimates; 9 are family- or locally-owned and 13 list coupons or special offers. We count these figures across the companies on this page; distances are straight-line, and hours and prices change, so confirm the details with the company before you book.
Why do some of these firms show another city?
4 of the 24 companies are based in Vallejo; the others come from other towns within 20 mi. This trade drives to you, so a shop over the county line is normal. Ask whether your address carries a travel charge.
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Alaska Refrigeration Air Conditioning & Heating Co
- Cooler
- Cleaned
- Fan
“I don't write many reviews but Alaska has saved me a lot of money by being honest, upfront and always looking for the most cost effective way to keep things running.”
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Hometown Heating and Air Conditioning
- Asset
- Photos
- Checkup
“Adam is very knowledgeable and helps me to understand more clearly how my regular maintenance affects the overall performance of my Lennox HVAC system.”
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3rdgen Heating and Cooling
- Thermostat
- Labor
- Tax Credit
“We call Devin at 3rd Gen Heating & Cooling for our HVAC service needs - replaced the blown fuses in my Mitsubishi minisplit due to an unexpected power surge”
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Freschi Air Service Experts
- Polite
- Informative
- Work
“Free membership saved $$$, no over-time charge, and ACE-certified expert tech Robert Lientz arrived in under an hour as we watched GPS tracking of arrival.”
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Precision Air Solutions
- DJ
- Job
- Space
“My 25 year old electric AC and gas heater went out and in less than a week I had a new Mitsubishi - 36k BTU Cooling + Heating - M-Series Multi-Position Air Handler Air Conditioning System - 16.”
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Fuse Hvac & Appliance Repair Napa
- Leaking
- Tech
- Diagnosed
“First time using Fuse services, and definitely recommend this company, Jason our technician was super fast and knowledgeable getting to the issue of my fridge super fast.”
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Big Air Heating & Air Conditioning
- Call
- Home
- Estimate
“Our old unit finally gave out ( it was about 49 years old) The crew was professional and friendly Now I just need a chilly evening to enjoy our new heater!”
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Boden Plumbing Heating & Air
- Estimated
- Morning
- Sink
“This time Andy arrived at the beginning of the 2 hour window, was very friendly, gave excellent advice and very professional service installing a new kitchen faucet.”
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Honrath & Stacey Plumbing & Heating
- Water Heater
- Job
- Rental
“Instead of pushing for a new $5000 furnace, they refurbed the existing fan for $982 and told there was still remaining life in keeping the old furnace running.”
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East Bay Heating and Cooling Inc.
- Questions
- Diagnosed
- Unit
“About 6 months after the install, i did notice a slight noise coming from the furnace and east bay came out to help troubleshoot without charging anything.”
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Galaxy Heating & Air Conditioning
- Job
- Efficient
- Dishwasher
“I highly recommend Galaxy Heating and Cooling for their top-notch service, expertise in cutting-edge heating and cooling technology, and commitment to customer satisfaction.”
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ACS Air Conditioning Systems
- Furnace
“Ronnie and crew completed job in two days, plus allowed me to paint the hat channel so I didn't have to be on a 30' ladder for two days trying to paint it afterwards.”
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Connolly Heating and Air Conditioning
- Questions
- Price
- Ductwork
“When the inspectors came to my house to see if the units were installed properly, they remarked that it was an excellent installation and done exactly by the books!”
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Environmental Heating and Air Solutions
- Inspection
- Sales
- Product
“His honesty and professionalism is such a joy to see that there is no pressure and gave me a honest advice which is something I rarely see in the sales industry.”
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Rendon Heating & Air
- Veteran
- Communication
- Trade
“We would highly recommend Rendon Heating and Air to everyone looking for good quality A/C repairs and finally a company that does what they say they can and will do.”
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Hi-5 Appliance Repair
- Stove
- Job
- Call
“He gave me some additional tips for further troubles hooting and sure enough a few days later I confirmed the problem is the logic board and not the damper.”
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Kel-Aire Heating & Air Conditioning
- Happy
- Furnace
- Efficient
“That were highly rated that could not fix our 5 year old fridgedare furnace over the holidays,we tried Kel-air a repair man named Aaron was able to fix it under an hour for the minimum charge he was very polite and very professional he even fixed our...”
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Compare Heating & Air Conditioning
- Price
- Heat Pump
“I truly recommended they're good people they do a professional job I recently installed a mini split air conditioner with heat pump and I was amazed with the incredible job that they did 👍👍👌Mark you're amazing boss ( owner ) and Oswaldo you're a har...”
HVAC, Heating & AC Services in Vallejo, CA Cost Estimates
Minimum cost
$2079
Maximum cost
$12458
National Average
$6486
Avg Per Hour Rates
$173
$4452
$8596
Fair price range is based on 539 cost profiles
Why these companies made our list
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