My central vacuum is an older system that was installed in the house before I bought it. I use Advanced Homes for service and maintenance. The central vacuum system hasn't needed much, but sometimes if it needs a new hose, I call Advanced Homes and they send me one. Recently, one of the outlets stopped functioning, so the service tech came to the house. He made some adjustments and it's been been working ever since. I appreciate that he came and fixed it without trying to sell me a new system like someone else might have done. The central vacuum keeps plugging away without much attention. But if I do need service or maintenance, I will rely on Advanced Homes.