I had invited my son and his wife to stay with me for a few days, until their AC got repaired. The second day here, the temp got up to 90 degrees upstairs. Joshua from Comfort Experts arrived in record time for a night-time call. When we went upstairs, it was still hot, but the AC was blowing cold air! I couldn't believe it! He said as long as he was here, he would check the system out to see if he could spot the problem. He did see what could have caused the event. He was very thorough, very knowledgeable, very polite, very nice to deal with. We have been doing business with this company for years, and I have never been disappointed.