Top-Rated HVAC Contractor in
O’Fallon, Missouri

Very quick and professional service i called at 10pm and had a cold house after work the following day, and they even called to try and get my repaire done earliy than scheduled because they had an opening. Also what's this i hear about free tacos? #TACOBOUTUS

Prompt and always professional! Alex was able to quickly diagnose what was wrong and fixed it in under an hour. Love this company so much!

From start to finish, the process was very easy. Every employee that my family dealt with was very nice and personable. Scott, our salesman was very informative and answered every question I had. I would recommend Stay Cool to anyone who wants professional service with even better customer service. Well done!

Came same day as I called and got my AC back up and running! Will be using them again!

Stay Cool Climate Control was amazing! On the hottest day so far this year, they were able to repair my AC unit and give me great, sound advice for replacement and financing. Alex did a fantastic job and was so kind, patient, and courteous with all of my questions. I highly recommend them!

Travis did a good job of explaining what the issues were and giving me options. He left it up to me as far as what I wanted to do instead of pressing into a decision. Would recommend.

Alex was great and came out on short notice. He walked me through each step and was extremely knowledgeable.

Very impressed with the young man that came out he put covers over his shoe. He was very professional and I look forward to seeing him in the fall. I think the price they charge was extremely fair. I didn’t think they were trying to push something on me, I’ve used them before I highly recommend them.

I set this appointment last night. Now, by COB today, my AC issues have been fixed and I'm good to go. Prompt service and explanation I can understand. That is what I love about this company.

Stay cool Climate control has been so great to work with. Alex was our technician and he went above and beyond the Call of duty to soothe my anxiety about my air conditioning system and discovered a problem that if not taken care of immediately could have been a huge problem. I know a lot of business owners who own HVAC companies yet I still choose to go with Stay cool climate control. Keep up the great work!

Dalton came out within an hour of my call. He was very knowledgeable and advised me on the best solution to restore my HVAC unit. I’m so thankful on a day like today where the weather is very warm that I don’t have to sit without AC. I really appreciate him being fast, friendly, and professional! If you’re in need of HVAC service or repair, I highly recommend this company!

Peter was great to talk to regarding the issues we were having with our AC system. He gave me the options for solutions after he inspected the setup and was honest in his recommendations for how to proceed. Very efficient and knowledgeable, I would absolutely request him again when I need help next time!

Nathan Blunt came out fast an did an excellent job. Will keep him and this company for all future work.

Great company. Fast and friendly service. Best thing is the honesty which is hard to come by these days. So if you’re looking for a honest and reliable AC repair company they won’t disappoint.

Nathan Blunt came out fast an did an excellent job. Will keep him and this company for all future work.

Amazing company, great customer service, highly recommend!!

Alex did a great job. Answered all my questions and was very timely.

We had Alex from Stay Cool out for the first time to do maintenance on both of our A/C units, and we couldn't be happier with the service. He was incredibly professional, took his time with both systems, and ensured everything was running perfectly. Top-notch service—will definitely request him again!