When I decided that my existing heat-pump and air-handler was simply too old and balky to keep, I followed good practice and contacted three vendors: two larger firms with a lot of advertising, and HVAC Service. Harman was able to quickly come to my house and discussed the options with my wife and me in a clear and logical way. As I requested, he provided several estimates for me based on various combinations of heat-pumps and air-handlers. The firm estimates were consistent with my expectations, and didnt include any of the high mark-ups that I have seen elsewhere. When I had a few questions, he quickly answered them. He and another technician arrived on time, were polite, neat, and profoundly professional.