This video provides a complete walkthrough on identifying broken or underpowered garage door torsion springs, determining ...

1. Track-and-rollers Most homes use overhead doors for the garage entry. Those that use a track-and-roller system are the most commonly installed doors today. 2. How springs work Overhead doors are ...

The torsion spring, not the operator (or motor), does the heavy lifting. Aesthetics aside, the big changes in today's 300-pound steel doors are in insulation. Tighter perimeter seals and sandwiched ...