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At Stay Cool Air Conditioning & Heating, our mission is simple: to keep families and businesses in the San Antonio area comfortable, safe, and worry-free. We’re a family-owned and operated HVAC company rooted in the values of honesty, hard work, and old-fashioned customer care. Since 2017, we’ve served thousands of homes across San Antonio—from New Braunfels to Castroville, and all points in between. Whether it’s a repair in the middle of the night, a system installation, or regular maintenance to keep your air running efficiently, we show up ready, reliable, and respectful of your time and space. We install and service trusted brands like...
Stay Cool Air Conditioning & Heating
Home Care & Success Stories
Stay Cool Air Conditioning & Heating
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Timothy B.
The tech was very polite. Answered all of my questions. Was very helpful at giving advice on what I could do to keep the system clean. He was very thorough but quick.
Review from Google
Tho N.
Christian N and Mark were great! Got the system back running quickly. Thank you.
Review from Google
Sean D.
8/13/2025 They came and replaced the wiring and added a few parts and everything is working great.
8/12/2025 Christian and another pleasant Worker came because it started doing the same thing as day before in the middle of the night Dion had came. They did lots more troubleshooting and have found it to be a faulty 240 wire going from inside to outside and are coming tomorrow morning to replace it.
8/11/2025 Dion came because our AC was cooling intermittently. He did lots of troubleshooting and found some fires inside outside AC unit that looked to be frayed and not making contact all the time. When he left late the house was cooling down and we were able to go to sleep.
8/7/2025 Dion came to install a UV light for the AC. He was very professional, cordial, explained how everything worked and did a great job with install and cleanup.
7/19/2025 Tony came out, as we had the AC no power issue again with a little bit of water on the drain pipe. He was great and fixed us up right away with the drain pipe that was trying to drain up hill to have it drain down hill in the AC cabinet.
7/6/2025 Dion came out as we had water all over floor and Nest saying AC had no power. He found a pipe that had come loose and the water was draining from it instead of going into normal drain pipe. He was great at showing us everything, explaining and cleaning up. Made sure that was the only problem and not the the pump not working, causing a backup too.. Very satisfied.
4/25/2025 Dion came out for our summer check up, and was very proffessional, and made you feel very comfortable as well. He did an amazing job showing all the pictures and explaing everything.
12/3/2024 Tony came out for our Winter check up and was very professional and great to deal with and did a great job.
6/18/2024 Chris came out for our Summer check up and was great as usual.
2/12/2024 Chris came out for 6 month service and didn't just check heater since ac does get used as well here in Texas this time of year. Found the capacitor was close to going out by the low voltage which will save us from it going out in the heat of the summer. Also fixed up something else that needed to be cleaned up from before. He was very professional and did a great job.
Update 7/18/2023, they made an appointment to correct the no caulking issue for this morning between 9 and 11am, I got a call they are running behind. They guy showed up at 1pm and did get it caulked.
Explained everything very well and got the condensate pump installed and it is working well. Showed up and had to ask us for a ladder, then asked if we had a pipe cutter which of course we didn't. I'm disabled and tough for me to go outside and look at things and wife in meeting when he was done. When we did go outside to look at things the hole he put up high for the copper hose to come out of house their is no caulking around it so a big hole for things to go in to attic.
Review from Google
Erica D.
From the start to the finish, we have been impressed with the quality and service care of the company. We had tried several times to have other companies come out to our home with no success. Immensely thankful for Jessica taking our initial distress call. Thanks to Christian for coming out and assessing what would be the best option for our home and budget. Thank you to Michael and the helper (sorry, I did not get the name) for installing our new system on a very HOT day. As everyone knows, a new HVAC system is a large investment, and with your company, it was a pleasant experience. Everyone listened to what we needed, answered questions, and explained each step of the process. Due to the high temperature, we were supplied mini units to help keep us cool before installation could occur. We look forward to our continued relationship via the new service/maintenance plan. We appreciate all of you who worked with us and cannot give your company enough praise.
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Edwin B.
I had a great experience with Stay Cool the knowledge was great and the customer service was even better.
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Jennifer S.
This company is amazing. My technician was great & very informative & resolved the issue right away. He even showed me what to look for if it happens again.
Review from Google
Jan 29, 2026
Jan 29, 2026