The simplicity of vacuum elevator technology eliminates annual maintenance that traditional elevators require to remain safe to operate. Maintenance of your PVE is fast, easy, and eco-friendly. Traditional elevators have machines and parts susceptible to wear such as pulleys, cables, counterweights, other bulky, heavy equipment. To keep the large, inter-related parts working efficiently, quietly, and safely requires at least annual inspection and testing and involves changing of messy, non-ecological lubricants. Vacuum elevators require one service visit every five years or 15,000 lifts to inspect and test the unit. The PVE does not use lubricants so the only maintenance required is a quick replacement of the elevator's main seal. The ultra-low maintenance requirements make a PVE a great investment for your home.