I think they do a great job. About seven or eight years ago, they redid all my air conditioning and heating, and I have never had a problem with them. They have helped out my neighbors as well, and I've recommended them to all of my neighbors. They didn't know who to call for the work they needed, so I suggested Max Mechanical, and there were no complaints by any of them! Most recently, they cleaned the condensing units by washing them inside and out, and everything is running very well. I have no complaints about their service, and I'm happy to continue recommending them!