I have been using One Hour Heating and Air Conditioning for service on my old heating unit. But recently, I decided to get a new heater and I called on the staff to install it. They were able to put in the heater in about three hours and I am quite pleased with the results of the work. The staff was very professional and I appreciate that everything was cleaned up after the job was done. I would recommend this company to other people. I would also use them again for another service.