Always On Time
St. Louis County HVAC Services
One Hour Heating & Air Conditioning® Serving St. Louis County
4.8
We Have a Reputation
For Being Punctual, Friendly and Knowledgeable
4.8
Denise Gordon
in the last week
“Most recent service. 2/10/26 Roy and the other technicians did an excellent job installing my new heating/ac system. Roy was patient answering my questions about what was going to happen. He is polite/ friendly and very knowledgeable. Roy worked well with the crew, they all had a specific job, and they communicated well to get things done. I am very pleased with the service, and my new heating system.”
Zach Treptau
2 weeks ago
“Pablo did an exceptional job with our new furnace installation. He was polite, informative, and thorough throughout the process. Everything was cleaned after the installation was finished as well. Northern One has a great feature where you get a text message when your tech is heading to your location, along with their picture and name so you know who is coming. They were also prompt in showing up and diagnosing the initial furnace issue and also with the installation of the new unit.”
Philip Martin
2 weeks ago
“Would highly recommend One-Hour. An unexpected problem with our air-conditioner was met with an excellent and problem solving response from One-Hour! Thank you Gary and Josh!! Thank you Binson for your professional service and communication while on-site, and your recommendations. So appreciate the service and value of One-Hour and consider them a trusted source. .”
Sue Lavey
2 weeks ago
“Oscar was an excellent technician .. very polite and courteous and very knowledgeable. The unit we had partially failed so he had to do a lot to get it backup and running. He always let us know what time he would arrive and would detail what needed to be done.✅ We definitely recommend Oscar and would use him again.”
glenn Brown
2 weeks ago
“Scotty performing a 1 week follow up of our complete hvac installation including new ductwork. Awesome company. All the installation crew were great to work with.”
Christina Principe
2 weeks ago
“We have been customers of One Hour Air for years. The company has been through some changes. Despite those changes in ownership we have found that their technicians are consistently friendly, patient, knowledgeable, and do follow up. During our most recent visit we had to replace the unit. Sheldon was so helpful and patient as he explained the pros and cons of our options and they were here doing the work just a couple of days later. The team was efficient and cleaned up well after each day of work. On the last day, Andrew and Carlos completed checking the ductwork, replacing the vents, and installing the insulation we'd also requested. What impressed most is, although it was late in the day, they took the time to walk us through the system, answer our questions, and make some little adjustments here and there that we requested for presentation's sake. We appreciate Sheldon who took the time to follow up the next week to check the work, answer some more of our questions, and update us on the status of our air filters. As a whole, technicians communicate very well from their anticipated arrival time, to the actual work, then the debrief of what was done. We have found that they work to standard despite the time. For customers who are more computer savvy, they are increasing their use of electronic contracts to include a virtual notary, same-day approval for loans (with decent rates), and the permitting of the work. My only recommendation to the company is to keep in mind that not everyone is technologically savvy and it may be helpful to have administrative staff available to provide guidance. Also, keep in mind that in these times of e-mail and telephone scams it would be very helpful to know to expect e-mails and what to expect of the links. Overall, we have been customers of One-Hour Air for years and expect to continue with them. We really appreciate the team and feel so much better about the air quality in our home. :)”
Dillon Mulkey
2 weeks ago
“Called a few months ago and they sent a guy named travis.. I DO NOT RECOMMEND Travis.. all he will do is Bang and hit your furnace then proceed to tell you oh well you're going to need a whole new furnace. While he's being rude as can be for no reason. Will compare his living to your living.. but he put a part on it made it work for the time being didn't put none of the panels back on or anything.. few months go by and the furnace is now blowing cold air. So we gave them another chance. They just sent a guy named Cory over and it took him 5 minutes to figure out was wrong . Ordered the part the next day and a guy named marquis came and put it on cleaned up everything . I just wanted to thank them for helping me out when Travis tried to make a dollar out of me. If they try to send you a guy named Travis just send him back where he came from.. I recommend Cory . Thank you sir”
Tiny M
2 weeks ago
“Repair service is great quick and helpful Nate was a very knowledgeable and listen to what questions I had. The sales reps are a bit different but nothing to hold against this company thanks for all your help and care. On one of the coldest weeks 🥶 before it became a problem.”
Luis V
2 weeks ago
“Joshua is a great man! He came to my house when he said he would and diagnosed and repaired my system. He didn't try and just sell me on getting a new system. He educated me on what my system is and advised me on what I'd be looking for in the future if I decided on a new system. I really appreciate that he took his time and made sure that my heat was working with the on coming cold front we got rolling in. I feel blessed to have met him, he is a great man! One Hour Heating and A/C have a huge asset in him and they will be the only company I contact for any HVAC concerns in the future. Do not hesitate to call on this company for any of your HVAC needs. Thanks again Joshua!”
Sushmita Shankar
2 weeks ago
“They were very prompt in replying back and were willing to come out the next day after the snow and bad weather and troubleshoot my heating system that had stopped working. Noah the technician was very knowledgeable and made sure all was working appropriately before he left. Which was like 4 hrs later. Reliable company. Would recommend them for sure!”
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