Safety: Many garage doors are much heavier than they might appear at first glance. This can make them unwieldy or dangerous to work with. If the door itself needs to be removed in order to straighten or replace part of the track, there's always the danger of dropping the door on your feet or being partly squashed as a heavy panel falls on you. But the real danger of many garage door repairs happens if the spring needs to be replaced. Garage door springs are relatively large and are under high tension once installed. This means that they may snap suddenly during installation, jumping out of your grasp and potentially causing serious damage or even death. A professional garage door repair technician will know how to minimize all of these risks, allowing them to install your garage door parts with minimal danger. …show more content…
You may be able to find a few minor parts, but replacement springs or other high risk replacement parts may be difficult or impossible to find. Even if you think that you've found the correct pieces, they could actually be substandard parts that are made by another company entirely. If you install them anyway, they may work briefly before breaking more quickly than genuine parts would under the same situation. Only garage door technicians are going to be guaranteed access to genuine parts made by the original