The two systems
Every garage door counterbalances its weight with springs, and there are two designs. Torsion springs mount on a metal shaft above the door opening and wind/unwind to lift it. Extension springs run along the horizontal tracks on each side and stretch and contract. Torsion systems are more common on newer and heavier doors, and generally last longer and operate more smoothly.
How to tell which you have
- Torsion: a tightly-wound spring (or two) on a bar directly above the closed door
- Extension: long, stretched springs running parallel to the tracks along the ceiling, usually with a safety cable through them
Why it matters for your repair
Both wear out and both are dangerous to replace yourself — they store enormous tension. Torsion springs are generally rated for more cycles and hold up better; if you're replacing extension springs, we'll often talk through whether a torsion conversion makes sense for your door. Either way, on a two-spring door we usually recommend replacing in pairs so you're not back in a month.
Frequently Asked Questions
Which spring type is better?
Torsion systems are generally quieter, safer, and longer-lasting, especially on heavier doors — but the right choice depends on your door and setup. We'll advise based on yours.
Can you convert extension springs to torsion?
Often yes, if there's adequate headroom above the door. It can be a worthwhile upgrade for smoother, longer-lasting operation.
Need a hand with your garage door? We offer same-day repair and spring replacement across Chester County. Call (610) 632-5206 for a free quote.