One Hour Heating & Air Conditioning® of St. Louis

We had purchased a Mrcool Heat pump System that is supposed to be DIY friendly. Needless to say, it was NOT. And Mrcool was not interesed in helping us. We had to hire a local HVAC and we had Logan as our technician. He came out on time and worked on fixing the poor factory design and got it running for us.

Wonderful experience with One hour heating and Cooling and Chad Nathan and crew. They did a wonderful job. Wasnt happy w the trane thermostat so they had Nathan come out early the day after the installation and put a better thermostat in. I was dreading the whole experience but they made it look easy. All very polite and capable. ⭐️ ⭐️⭐️⭐️⭐️

This was an annual winter check, the technician was polite, professional and knowledgeable. Cleaned and checked my furnace. Replaced my filter, and said that my 24 yo is in good working order. Did not, try to sell me a new system, that alone is worth it's weight in good will, and my business.

I had an awesome experience with Rob. He was very professional, found the issue very quickly, and was in and out. The prices are very reasonable and they have a maintenance program that really fits the bill for what I need yearly. I will 100 percent be using them while im living in St. Louis. They also were able to get me an appointment very quickly. Start to finish I am very impressed.

Excellent overall experience, professional installation and affordable price. I had an urgent situation with two ducts that were preventing me from hanging drywall. I called about 12 HVAC companies, and One Hour was the only one able to accommodate me on short notice. I cannot recommend One Hour Heating and Air Conditioning highly enough!

Awesome tech! Very professional, very personable, tasks done quickly but thoroughly. Asked if he should remove his shoes. Nice touch!! Great price! Would definitely recommend this company!!!

My mom’s AC went out on the hottest day of summer so far, and One Hour Heating & Cooling came through for us! As a KC customer, I knew that I could count on the same quality of service when One Hour popped up on a Google search. I appreciated the same-day response. The tech quickly diagnosed the issue (it turned out to be an easy fix) and there was zero sales pressure. Just honest service and a much cooler house. Highly recommend!