I have used Fountain Hills AC & Heating for the past few years for preventative maintenance. However, I am extremely disappointed that the company did not find or notify me that our evaporator coils had extreme rusting and deterioration. The coils have been rotting for quite a long time. The house is only 5 years old as is the AC unit. Once my system failed I found another local company who could come out right away to get my AC running again. This is when I was notified of the issue and was explained that had the preventative maintenance been done properly, this could have been rectified prior to the failure. I could have saved money and the time my AC was down had Fountain Hills properly completed their inspections. I have requested a partial coverage or refund of their services and was told no. I would not recommend Fountain Hills AC & Heating!