Expensive repairs? Find a warranty to cover future costs. Replacing a central vacuum system can cost anywhere from $1,150 to $3,500, so repairing your old one could save you a lot of money. But how ...

My central-vacuum hose was clogged and had almost no suction. My husband thought water power would clear it. He took it to a carwash and sprayed water into the hose. It washed out a big wad of stuff.