Had Don come out for a second opinion on my A.C.. cause I felt the guys my home warranty sent out were trying to rip me off. He came out Saturday morning, spent about an hour doing tests for a leak and diagnosing what this other company couldn't do and tell me on site when they came out Friday. Don found the issue and repaired it within an hour. Now we have a cold house again and didn't have to wait til Monday or Tuesday. Great company and will recommend to anybody.