Brian from Brian's Mechanical was recommended to us by a trustworthy friend who was in the Heat and Air business. We have an old house with a very complicated system and he's been able to get to the bottom of the problems and solve issues other companies weren't able to find. Brian is extremely responsive in cold or hot weather, and I am always grateful for his quick response. I've been using him for a few years now, and wouldn't consider using anyone else! I've recommended him to friends of mine.