9.8 Twist the garage door shaft to tighten the cable on the drum. While twisting, vise grip the shaft as shown to keep the cable tight on the drum. The top of the vise grip should be tight against the garage header. This will keep the cable snug on the first drum while you install the cable on the other drum and position it in place. It also keeps the shaft from turning and the cables peeling off when you wind the springs. That one grip can save many hours of walking back and forth and having to level and re-level the garage door after winding the torsion springs.
SNAP... bang... boom. That is the sound of a garage door torsion spring breaking. It can be a very loud noise that sounds like a firecracker or gunshot. Springs are rated for a certain number of cycles and are the first thing that will break in your garage door assembly. Broken springs are the #1 source of customer calls for garage door repair companies. If you have a broken spring, you should NEVER try to open the door, as it can be very dangerous. This repair should be left to a professional or someone with the right tools and skills.

Garage Door Repair Installation Centennial Co 80015


Aging garage door springs cause the door to effectively "weigh" more as the steel loses its resiliency. With new springs, a heavy garage door should take no more than about 10 pounds of force to lift into an open position. With springs nearing the end of their lifespan, the force required to lift the door can be considerably more, since a garage door may weigh 200 pounds or more.
In most cases, only one spring breaks or wears out at a time, and you can get away with replacing just the failed spring. But this is a little like replacing old car tires one at a time. You'll get the best performance if all the springs are new and have the same strength. Extension springs are replaced individually, making it more tempting to replace just one. With torsion springs, you have to disassemble everything to replace either spring, so it makes sense to swap out both springs during the repair.
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