I found Atomic through my home warranty.
The other day I thought I heard the tone of the condenser fan change so I put a request through the home warranty for service around 9 at night on a Tuesday. Atomic Air was sent the request. Since it wasn't an emergency I was expecting to get an appointment by the weekend. I imagine this is the busy season for repairs. Not the case. They called early in the morning to set up a time (which we missed, our phone was buried). After calling them back they scheduled us within the hour! Talk about service! I know no company can do that all the time but it was much appreciated. I had family home for the visit but they took a look and replaced what needed to be replaced. Happy camper. I'm going to give them a try with my seasonal visits now to keep the heater/cooler working like it is.
Would recommend these guys to service your AC.