My experience with Perfect Home Services wasn't very encouraging. I called them to inspect the AC and heater, and they recommended that we replace the entire unit. I called a couple different companies in, after that, to get second and third opinions, and everyone else said that it'd do just to replace the coil, instead of the entire thing. Given this, I don't have a lot of trust in the competence and honesty of the company, and I'm not likely to recommend them to others.