We had 2 service companies come out to look at our air conditioner which would just randomly shut off. They claimed it was bad and had to be replaced for about 10K. After our 2nd estimate we called Dekes.
They told us we needed to have a piece of wall cut to relieve the heat that was building up from the exhaust fan. Sure enough that was the problem. Our air conditioner has worked great ever since and they were efficient, polite and just fabulous. They didn't overcharge us either!
Would always recommend them!