Quality Air Service
“Chris (Kris?) was the first person I talked to, and I've never met such a kind woman in my life.”
Best HVAC Contractors in St. George, UT
17 companies listed · all 17 in St. George · 5 open 24/7 · 9 open weekends · 16 rated 4.5+
Data verified October 18, 2026
D Blake Electric & Refrigeration
“The technician was great, pinpointed problems quickly and had our air on and working!!”
A-1 Services
“Very trustworthy caring an A1 customer service our whole family uses him.”
Air Care Professionals
“Since then we have had repairs done on our existing HVAC system & had them install 2 mini-split systems which are incredible.”
S&S Mechanical
“Showed up on time – got the work done – all good”
Alpine Temperature Control
“Half expected something to be missing and there wasn't.”
The 17 companies listed for St. George, UT 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: St. George, UT
All 17 companies we list here are in St. George itself. We have 22 companies in St. George on file; this page shows the highest-rated 17. The companies on this page are rated from 4.4 to 5.0 across 3,989 reviews; 10 have 50 or more reviews and 16 are rated 4.5 or higher. When customers rate these companies on specific qualities, they most often praise professionalism (89%), responsiveness (82%) and quality (81%). The topics that come up most in reviews of the companies on this page are "price", "communication" and "informative". 5 are open around the clock; 9 are open on Saturdays and 7 on Sundays. 6 show a license on their websites; 1 lists staff certifications (NATE) and 6 have a BBB rating of A or A+. Domain records put 8 websites of the companies on this page at ten or more years old; the oldest dates from 2007. 7 offer emergency call-outs; 4 offer financing or payment plans; 7 give free estimates; 5 are family- or locally-owned and 4 list coupons or special offers. We count these figures across the companies on this page; hours and prices change, so confirm the details with the company before you book.
Do any heating firms listed for St. George work on Saturdays or Sundays?
Saturday or Sunday hours show up for 9 of the 17 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.
Air Rescue
“Statton came right on the scheduled time and solved the problem in about 5 minutes”
Kuhn's Heating and Air Plumbing
“It was great to have him come tune up our unit before the heat of the summer kicks in!”
Emco Heating & Air
“They diagnosed and fixed all issues we've had in the building over the last 8 months.”
Five Star Air Conditioning
“They were prompt, courteous and worked hard to solve zone issues and found a solution that was much appreciated.”
Ashby Air
“Our AC went out and after searching reviews on Google I found Ashby Air and left a msg.”
A-Zion Mechanical
“Thankyou John Odegard for being so professional and on time all the time!”
AMR Hvac
“I'm very grateful for their professionalism and the speed in which they were able to take care of us.”
Ace Mechanical.
“I had zero reason not to love these guys.”
Comfort Systems Southern Utah
“They have even replaced a complete air conditioner, and they did the job while I was out of state.”
Air Today (Fsm) Air Conditioning and Heating
“He is timely, responsive, does excellent work, takes time to explain the details, and does little extra things that only he would think of.”
St George Refrigeration
“Warren and the team are the best refrigeration and air conditioning service in town.”
Why these companies made our list
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