I've had a service contract with D&M for 18 years now. They are the best. They have come out on the spur of the moment when I've needed them. All of their servicemen are very polite and let me know what's going on. I'm a widow, so the service they provide is outstanding. I recently had a furnace replaced in the garage. They were very efficient and they came when they said. I can't say enough good things about them.