A central vacuum system was the first thing I installed in my new house twenty years ago. I had always used another service for repairs before now, but they must have gone out of business because I can't reach them. So the manufacturer put me in touch with Advanced Homes for my repair. The tech came out right away and fixed the problem. I will be calling Advanced Homes directly from now on to service my built-in vacuum system because I was so pleased with their customer service. i recommend Advanced Homes.