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Plus Air Duct Testing
- Clean
- Inspection
- Requirements
“Although our HERS testing didn't pass the first time for our AC replacement, they offered us some tips on how to better seal the system in order to pass next time.”
Best HVAC Contractors in Fountain Valley, CA
24 companies listed · 4 in Fountain Valley · 5 open 24/7 · 15 open weekends · 19 rated 4.5+
Data verified October 18, 2026
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Rooter King Plumbing
- Drain
- Team
- Night
“Last night we had a plumbing emergency we called late at night and Jacob arrived quickly and helped us with our issue, we were worried about a hefty bill but this company is very honest and we will be using them again if we ever have any other issues...”
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Command Comfort
- Units
- Job
- Work
“With our home near the beach, we have limited access for cranes, but the command comfort team came in with the perfect crane and was able to set all three rooftop units, they are amazing!”
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Scott Heady Air Conditioning and Heating
- Duct
- Knowledge
- Heat Pump
“The inspector, after Scott had left, made it a point to tell me how unusually tight and efficient Scott's design was compared to other contractors he tests.”
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Bradley Mechanical
- Price
“It took a couple of times to diagnose the problem but all the replacement parts were covered under the warranty, They were very professional and friendly and clean and responsive.”
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West Coast Energy
- Price
- Sales
“I brought this up with West Coast they said the vents were fine they just needed to be resealed at certain connection points to ensure there was no air leakage, They said they would take care of it when they installed the new unit, which they did.”
The 24 companies listed for Fountain Valley, 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: Fountain Valley, CA
Of the 24 companies we list here, 4 are in Fountain Valley itself and 20 come from towns including Jurupa Valley (4, 34 mi), Anaheim (3, 10 mi) and Irvine (2, 10 mi). 20 of the companies on this page have a rating, from 4.3 to 5.0 across 2,762 reviews; 9 have 50 or more reviews and 19 are rated 4.5 or higher. When customers rate these companies on specific qualities, they most often praise professionalism (92%), quality (85%) and responsiveness (83%). The topics that come up most in reviews of the companies on this page are "price", "cleanliness" and "efficient". 5 are open around the clock; 15 are open on Saturdays and 10 on Sundays. 8 show a license on their websites; 3 list staff certifications (NATE) and 6 have a BBB rating of A or A+. 16 have ten or more years of experience, the longest 62 years. 5 offer emergency call-outs; 6 offer financing or payment plans; 8 give free estimates; 7 are family- or locally-owned and 5 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.
Do any heating firms listed for Fountain Valley work on Saturdays or Sundays?
Saturday or Sunday hours show up for 15 of the 24 companies here. Saturdays fill with the calls that came in on Friday, so ask whether you are getting a repair slot or a sales visit. Sunday work is usually treated as an emergency call.
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Covac Ductless Mini-Split Air Conditioning
- Units
“Had I had the walls open and a platform on the roof, that might have been possible, but I would still check with him first before scheduling an install.”
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Trinity Air Conditioning & Heating
“Thank goodness you could service the air conditioner in my daughters apartment at City Place in Pasadena today.”
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I GO Heating & Air Conditioning Inc
- Knowledge
- Condenser
- Prices
“From the outset, Peter's commitment to customer satisfaction was evident, as he patiently guided me through troubleshooting my furnace issue over the phone before scheduling an onsite appointment.”
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Whisper Heating & Cooling
- Diagnosis
- Leak
“He not only identified the problem quickly, but also told me of other issues I had with my system that I wasn't aware of.”
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TK Services
“Went to get tripak repaired on Thursday they were really backed up didn't think I would get my truck back till probably Monday from the look of things but they got the truck back to me Saturday mid morning.”
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AMX Fountain Valley Hvac Care
“He gave us the charge to replace, and exerted no pressure when we told him we had insurance and that we would have them replace it because it would be covered.”
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Socal Synergy
- Prices
“He's methodical when he's doing his repairs and does checks and balances that I've never seen done by other companies.”
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Great Wall Hvac
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Mage USA Group
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Adrian's AC & Heater Repair
“My technician from Adrian's AC & Heater Repair came out on a Sunday night to diagnose an issue with my air conditioning unit.”
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Provent
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Specialty Cooling
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Albert Air Inc.
- Job
- Furnace
- Project
“They did an excellent job, and were highly responsive when I imposed a number of requirements to make the systems and the home more easily maintained and to facilitate other future upgrades.”
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Biard & Crockett Plumbing
- AC
- Valve
- Upsell
“James did a great job installing a pressure regulator on my sprinkler system and figured out how to get my toilet to flush properly after two plumbers were not able to fix it!”
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McMaster Heating & Air Conditioning
- Job
- Ducts
- Sales
“In July, 2019 Mc Master installed our new Carrier HVAC system into our home that needed all the ducting and vents changed out due to the original central heater still standing at 53 years old, with asbestos wrapped ducting.”
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Crandall's Plumbing
- Leak
- Technician
- Rental
“We also needed some testing done with mold and they recommended a phenomenal company and they all worked very well together and we are very satisfied with the job that they did.”
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Alps Heating & Air Conditioning
- Unit
- Work
- Hvac System
“ALPS personnel excelled in their professional actions: being on time, answering questions, pursuing their tasks with care, respectful of private property, courteous, cleaning up afterwards, representing their company in all the ways an HVAC company ...”
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Kalka Plumbing Heating & Air
- Home
- System
- Efficient
“HOWEVER, Zach got on the phone and called every parts provider he knew, and magically he was able to acquire everything he needed to fix the problem same day.”
HVAC, Heating & AC Services in Fountain Valley, CA Cost Estimates
Minimum cost
$1840
Maximum cost
$11026
National Average
$5740
Avg Per Hour Rates
$153
$3940
$7608
Average price range is based on 510 cost profiles
Why these companies made our list
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