We had the complete system overhaul done on both of our furnaces. Dave was very professional, he was on time, he showed us all the different parts and then cleaned them. He even went the second mile and tightened a faucet handle when he noticed it was loose while cleaning. Our furnaces are getting older, one is 25 years old and we’re starting to worry about it a little bit. While he let us know that it was nearing the end of its life, there was no high-pressure sales tactics. We really appreciated it. Thank you, Dave, and Authority Heating and Cooling.