We had Pro-Tech out yesterday to perform an inspection of our heating and a/c systems. We had not used them before and were looking for a company to do yearly check-ups and a go to for unexpected repairs. The tech they sent, Bradley, is the best tech I think we have ever had...be in many years in the Bay Area and many in Phoenix. He was very knowledgable, spent a good amount of time doing the inspection, cleaning and evaluating vs in a hurry to get to the next job and having to come back to redo the quick job. I don't know if all their techs are as thorough and informative as Bradley, but if you are looking for pro....try Pro-Tech.