No matter how good of a handyman are you and whether you took care of your garage door, you cannot escape garage door replacement. The question is when you will need to replace the door because it makes a difference to your security, pocket and safety if you will change it in a few years, in twelve years or after twenty years. The quicker the door will be replaced, the greatest the insecurity. Garage doors are supposed to provide protection for many years without compromising your safety.