We have been working with One Hour Heating and Air Conditioning for about 10 years now and they have always done great work for us. They have installed most of our units and it has always gone very smoothly. Most recently, we had them over for our annual winter check-up, they checked all of our units and determined that no servicing was needed. Their technicians are very hardworking and very knowledgeable, I wouldn't trust anyone else with this kind of work. I will be using them as long as they're around.