Alpine Climate Control, Inc. was recommended to us several years ago by our previous heating and air company, that had stopped working on our type of furnace. Alpine Climate Control, Inc. came right out back then and fixed it, so we have been using them ever since. They recently had to come out and look at the furnace because we were hearing a noise in it. They checked it out for us, and they also set the thermostat. They are nice people, and they do a very good job!