Every wheelchair repair service should be conducted professionally or you may invalidate your warranty. That said, there are basic things you can – and should – do to keep your wheelchair in good working order. Just like owning a car, for example, there are some tasks that most people will be comfortable performing while others really need a professional to carry them out. Either way, wheelchair maintenance is important for your comfort, your safety, and the longevity of your chair. What do you need to know?