Garage doors commonly use torsion or extension spring systems to counterbalance door weight. The exact setup varies by door and hardware.
Torsion springs
Torsion springs are mounted around a shaft above the door on many systems. They store energy as they are wound.
Extension springs
Extension springs stretch as the door closes on systems designed to use them.
Safety note: Both systems can store substantial energy. Spring selection, adjustment, and replacement should be handled by someone equipped and qualified for the work.
If a spring has failed, see garage door spring repair.
Garage door help in Daly City
Call (650) 912-1865
Need help with your garage door?
Call and describe what the door is doing. We’ll help you get the right garage door service for the problem.