I've had a contract with them for 11 years to service my heater and AC system. They installed a new heat pump for me and it was really quick. When I had a need for service this past fall they were here as soon as possible. They always come when they say they will, which is great. I have a yearly contract with them for maintenance. It's not cheap but nothing is these days. It covers immediate services and I get first dibs on any kind of service. Sometimes I have to pay a little extra for parts, but it seems worth it to me. They're a very dependable service.