If you are having trouble with your garage door, it may be due to some problem with the springs. (For more information on diagnosing garage door problems, see Garage Door Troubleshooting.) Garage door springs do break, and they can be replaced. There are suppliers out there who sell replacement springs to DIYers, and there are DIYers who have safely and successfully replaced their own springs. I won't try to convince you not to take that approach if you need new springs, but I will strongly suggest that you carefully weigh the risks versus the rewards in this project before deciding to do so. And I also suggest that you make sure your health insurance premium is paid up.
This article is not a how-to on garage door spring replacement. It is intended to acquaint you with garage door springs and some of the maintenance duties you can perform yourself.
Two Types of Garage Door SpringsThere are two different types of springs used on garage doors. Torsion springs are attached just above the closed garage door, while extension springs are located above the upper tracks on both sides.
Garage Door Springs and Your SafetyGarage door springs are tightly wound, meaning they are under a lot of tension. When they break, or when some unsuspecting DIYer tries to fiddle with them, they can cause a whole lot of pain. Wise DIYers know that this is one household chore that is best left to the pros. (For tips on finding a qualified garage door pro, see How To Find the Best Garage Door Installers and Repairmen). If your garage door is old, or if it is showing signs of age, let an experienced contractor inspect your garage door springs.
But if the springs are just squeaking and otherwise making a lot of noise, there are some things you might want to do before calling in the troops. A little squeak does not necessarily mean a big problem, any more than an aching head means a brain tumor. Apply some garage door lubricant to the springs and see if it makes any difference. If it doesn't, you may have a serious problem brewing. For suggestions on the best lubricants to use on your garage door, check this site. For some additional advice on reducing the noise of your garage door, see How To Quiet a Noisy Garage Door.
Garage Door Safety CablesThe two types of garage door springs discussed above work differently. A garage door with extension springs will have a safety cable on each side of the door running through the spring and attached to the wall or ceiling. These cables are an important safety feature. Extension springs are under a great deal of tension, and if one was to break, it could cause serious injury. Safety cables help control a broken spring.
If you have extension springs on your garage door but can't find any safety cables, call a garage door pro and get a pair installed.