Maintenance is key to extending the lifespan of a central vacuum - you should run a knife over the bristles occasionally to make sure nothing is caught up in them. You should also change the paper liners every few months and cloth liners every 5-7 years.
Every year this company sends me a bill. My contract has been cancelled since 2017 and I paid all the outstanding balances up to 2019 to the amount of $508.50 and $344.65 for 2018. My line has been disconnected since...