A spring snaps and the door won't lift
Why it happens
Springs do the lifting, and they wear out. Torsion springs sit on a bar above the door and wind up to lift it. Extension springs run along the tracks on each side and stretch as the door closes. Most torsion springs are rated to around 10,000 open-and-close cycles, roughly 7 to 10 years on an average home.
Why it matters
Springs are under high tension and can cause serious injury if they let go while you're working on them. It's the one part of the door to leave alone, however handy you are.
Response
Leave the door down and call Thom. Tell him the door type when you ring, so he brings the right spring.




