Small one man shop - very honest. I have used him several times. Owners name is Ronan. Had another HVAC company tell me my coils need cleaning. Ronan looked at my outside unit and said it was a waste of money. In my view, anybody who turns down work instead of sell sell sell is the kind of person I want to deal with. The other guy was a worker bee in a bigger company. My guess is he was trained to sell this service whenever possible. Just like some electronics retailers want to sell overpriced cables when you buy a new TV. No such nonsense with ADI.