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Absolute Airflow Air Conditioning
- Pressure
- Booties
- Tankless Water Heater
“Upon further inspection he noted that something was not done and when my husband was upset (thinking it had been done) he acted professionally and kindly.”
Best HVAC Contractors in Westminster, CA
24 companies listed · 5 in Westminster · 9 open 24/7 · 20 open weekends · all 24 rated 4.5+
Data verified October 15, 2026
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Trifecta Heating & Air Conditioning
- Duct
- Questions
- Efficient
“He even took the time to write down the full model number and year of each unit, which I had no idea of since they were installed by our home's prior owner.”
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Infinity Air Hvac & Commercial Refrigeration
- Costume
- Project
- Reviews
“The whole process was smooth and simple, got a fair price for my residential a/c repair, told them it was urgent and the whole repair was completed within hours.”
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Champion Aire Heating & Air Conditioning
- Choice
- Price
- Home
“They delivered the best service and highly recommend this company, company you can trust and the price is right.”
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Ti-Mechanical
“Always GREAT!!!!!!!!”
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Albert Air Inc.
- Work
- Call
- Efficient
“Competitive price, friendly and professional staff, efficient installation, give these guys a go if you need anything done to your HVAC, highly recommend!”
The 24 companies listed for Westminster, 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: Westminster, CA
Of the 24 companies we list here, 5 are in Westminster itself and 19 come from towns including Anaheim (4, 10 mi), Orange (3, 10 mi) and Brea (3, 14 mi). The companies on this page are rated from 4.6 to 5.0 across 9,548 reviews; 21 have 50 or more reviews. When customers rate these companies on specific qualities, they most often praise professionalism (89%), responsiveness (84%) and quality (82%). 9 are open around the clock; 20 are open on Saturdays and 12 on Sundays. The services the companies on this page list most often on their websites are air conditioning (2), attic insulation (2), heating (2), indoor air quality (2) and water heaters (2). 18 show a license on their websites; 3 list staff certifications (NATE) and 10 have a BBB rating of A or A+. Domain records put 16 websites of the companies on this page at ten or more years old; the oldest dates from 1998. 9 offer emergency call-outs; 14 offer financing or payment plans; 10 give free estimates; 12 are family- or locally-owned and 12 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?
5 of the 24 companies are based in Westminster; 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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Biard & Crockett Plumbing
- Furnace
- Gentleman
- Inspection
“We had a water heater fail under maintenance agreement with Sears Home Services (what is left of Sears) on Sunday and due to the heater shut off failure also have had no water except what we bailed from the pool to flush toilets.”
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Crandall's Plumbing
- Diagnosis
- Fan
- Furnace
“They added HVAC services in the last few years and I decided to use them for a furnace issue (the fan motor would not turn off the first time we used our heater this season).”
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Alps Heating & Air Conditioning
- Tech
- Lennox
- Mask
“He could not get controller to communicate with the internet even after I rebooted the internet system as well as checked with network technician to see what was the problem.”
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Brea/Orange County Plumbing Heating & Air Conditioning
- Job
- Kitchen
- Sewer System
“The technician Marcio was very careful, professional and meticulous in his process, he took his time to install the water heater even though it was a rainy day.”
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Patriot Plumbing Rooter Inc.
- Pressure
- Faucet
- Repipe
“He advised that the toilet flange height was too low at the floor which was preventing a proper seal, so he fixed that by raising the flange to the correct height.”
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Moffett Plumbing & Air
- Tankless Water Heater
- Warranty
- Hvac
“I complained about how heavy and awkward it was for me to get the bags into the trunk of my car and then into the garage and then pouring them into the tank.”
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Downey Plumbing Heating & Air Conditioning
- Home
- Toilet
- Employees
“I've used Downey Plumbing Heating & Air for many years at multiple locations and they've installed air conditioning, upgraded plumbing, and recently they installed a new garbage disposal.”
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Rand Aire Mechanical Contractors Inc
- Efficient
- Competitive
- Estimate
“Rand Aire is professional and friendly and performs top-quality work—my highest recommendation to anyone looking for a good heating and cooling contractor.”
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Living Air Design
- Efficient
- Warehouse
- Ton
“Professional, all the right answers, prompt with an ETA by phone each trip, and a scope of work reduced to writing with a completion date that was adhered to.”
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Jamison AC & Furnace Repair
- Home
- Quotes
- Tech
“Jamison scheduled me for the next day and assessed the problem and came back a couple hours later with the replacement part, installed it and told me it was covered under warranty!”
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Klondike Air Conditioning & Heating
- Inspection
- Efficient
- Knowledge
“Andrew, from Klondike Air, devised an elegant solution that fully meet the building code and was relatively simple, affordable, and required minimal modifications to the house.”
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Home Comfort USA
- Supervisor
- Mario
- Hvac System
“Nicholas showed up early: he was unfailingly courteous, careful, and polite, he was exceptionally clear in educating me about my system -- to the point of drawing an actual diagram -- and he made sure I could understand my options to rectify the prob...”
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Climate Air Masters Inc.
- Efficient
- Knowledge
- Maintenance
“Climate Air Masters is an honest company that will only do what is needed and not try to tell you that you need something that you don't actually need.”
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A&G Air Conditioning Services
- Heat
- Fair
- Questions
“Before purchasing my air conditioning unit I was comparing prices with other companies and the A&G company in the city of Fontana is the company that told me the lowest price around the competitions I am very happy with this company the workers are v...”
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Comfort Time Plumbing Heating & Cooling
- Unit
- Jesus
- Duct
“My HVAC system needed routine maintenance but I know nothing about it so I greatly appreciated Jose spending the time to explain the system and walk me through what he was doing.”
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Service Lion Plumbing Heating Air Electric
- Pipe
- Outlet
- Sink
“Carlos did an excellent job, brand new kohler toilet, 2 1/2 inches taller, easier to get up from, it looks so nice, has the easy close feature, lovely toilet, very happy with service lion.”
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Happy Camper Heating
- Pricing
- Call
- Shoe
“They have earned a long time customer due to their professionalism, their vast knowledge and ultimately they don't try to sell you unnecessary things.”
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Orange Coast Plumbing
- AC
- Hose
- Pressure
“Had a clogged kitchen sink right before Easter Sunday called ocp who sent out one of there best technicians he showed up promptly and put my mind at ease.”
HVAC, Heating & AC Services in Westminster, CA Cost Estimates
Minimum cost
$2012
Maximum cost
$12053
National Average
$6275
Avg Per Hour Rates
$167
$4307
$8317
Typical price range is based on 367 cost profiles
Why these companies made our list
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