How to repair broken garage door spring? Wear of these springs is normal, and there comes a time when you really have to repair them, or even replace them. Know which spring is damaged. There are two types of springs in garage door. Biggest one that is on opening of garage is called torsion spring. These springs come in pairs and if one is damaged, you will have to replace them both. But do not think you can do this on your own.
Repairing or replacing a broken garage door spring without professional help can result in a tragedy for you, or even death. If torsion spring is damaged, call a professional who knows how to do it. Other set of springs are known as extension springs (also called side-mount springs), and are those that extend along upper left and right tracks of door. These springs help lift garage door. You can repair or replace these springs with help. Do not try to do it alone.
Open garage door completely. If you have to lift it, ask for help. Then lock door tracks on lower roller by running track with a tightening screw. Remove damaged spring. In turn, check for any other damaged components such as bearings, pulleys and cables. To repair broken garage door spring, Buy a new set of extension springs, preferably a pair. You will also have to replace opposite spring. An imbalance in force of opposite spring will be generated if only one is replaced.