My AC stopped working at midnight Friday. I called Glenn Aire on Saturday morning and they said they had a tech on duty and he would call me to arrange a time for service. He (Charles Miller) called and stated he could be at my home around 11:00 a.m.. He was very prompt, efficient, and knowledgeable. He corrected the problem in a very efficient manner and was very professional in every way. I appreciate this company and the service they offer. I have used them before and I will use them again, as well as referring them to others.