Great service, fast response time, tech (Vitaliy) was outstanding, going above and beyond the basic repairs needed for a faulty bearing on a newer motor. Gave me a few lessons about heating and a/c I was not to familiar with, even though i am an electrician, although in the power production end. Really, really great response with me and my wife, and very "on it" with all phases of the industry. Will definitely use Hvac Doctor again!!!