My AC unit broke down last summer and called ATS to come out and take a look. They did a temporary fix to make sure the unit would still run while they were working on a quote to get the unit up and running right. They gave me a great quote, better than anyone else in town and were out within three days to fix my AC. They were extremely courteous and friendly, and highly knowledgeable. They educated me on my new unit and how everything worked and made sure I understood before they left. ATS came back out in the fall to insure that my heater was working properly as well. They are great and so easy to work with, I would highly recommend them to every one.