I heard the ad on the radio for One Hour Heating and Air - Bethel Park, PA so I gave them a call. I was needing a new heating and air conditioning unit. They had a representative come out and show me different units in books and he took the time to describe the difference in the units and which would work better in our home. When I was ready to select the unit we wanted I was well informed. The technicians who came out for the installation arrived on time and got to work right away. They explained what they were doing. They were respectful of our home and courteous. When they finished the installation they showed us some of the features of the unit and gave us some maintenance tips. I would highly recommend using One Hour Heating and Air - Bethel Park, PA.