Upper Keys
Extension Spring Repair in Tavernier
Extension spring repair covers the long coils that stretch beside the horizontal track. People search it when a broken spring hangs down as a loose coil above the parked car. These steel coils are common on older single-car doors that never had a torsion shaft above them. The safety cable running through each coil keeps a broken spring from flying across the garage. A torsion winding cone on an overhead shaft does not repair this side-mounted spring layout.
How a side spring fails
A broken extension spring collapses into a loose coil above the car, with a bang. The door then feels heavy, and it may hang up on the side that lost its spring. The partner spring on the other rail is usually just as old and is replaced as a pair. A missing safety cable is part of the failure, because that cable is what contains the coil. Color bands on the spring are not a full specification for the replacement.
What you can check
Leave the door parked where it is, whether it is down or stopped partway, and do not cycle it again. Do not touch the coils, the pulleys, or the safety cable, even if the spring looks fully slack. Keep people out of the garage until both sides have been secured. You can see from the floor whether one coil is stretched and the other is bunched up. Never try to stretch a loose coil back onto its own pulley by hand.
Pair cables and pulleys
The visit replaces the extension springs as a pair and fits a safety cable through each coil. Pulleys and the clips are checked, because a worn pulley will cut a new spring. The door is balanced after the new pair is on, so neither side lifts early. A torsion cone on a shaft does not repair coils that live beside the track. If the door racked when the spring let go, the section damage is handled with the spring job.
Color is not the whole spec
Color bands mark spring size, and leave out length, stretch, and door weight. Two springs of the same color can be wrong for a heavier section or a taller door. The safety cable has to be long enough to stay inside the coil when the door is down. Pulleys must turn freely, or the new spring saws on a frozen wheel. The layout stays side-mounted coils, and the parts are chosen for that stretch, not for a torsion shaft.
Damp air and storms
A basin lot in Tavernier salts the side springs and pulleys sooner than an inland lot does. Humidity rusts the safety cable inside the coil, where it is easy to miss from the floor. Salt reaches those pulleys and clips sooner when the opening sits closer to the water. Storms add hard stretches and can snap a tired coil that was already rusty. The repair is still a matched pair with safety cables, plus any pulleys that no longer turn.
Request this visit.
Call (645) 256-1794 about this door.
We answer any hour Sunday through Friday.
Saturday stays closed.
Keys Door Co is family-owned, local, and insured.
We have worked this coast for over ten years.
Common questions
What does a broken extension spring look like?
A broken extension spring looks like a loose coil above the car, beside the track. The door feels heavy on that side, and the safety cable is slack with it. Leave the door parked and keep people out until the pair is replaced.
Will a torsion spring part fix an extension spring?
A torsion cone does not repair coils that stretch beside the track. Extension springs need the right stretch for this door, and color is only a clue. The safety cable and pulleys are part of the same repair as the pair.
Why are both extension springs replaced?
The second spring has lived the same cycles and is near the end of its stretch. A new coil beside a tired one lifts one side of the door early. Both springs, cables, and pulleys are handled together so the door stays even.
Request service
Name the street and whether the door is up, down, or stuck.
- Repairs and replacement parts
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- New garage doors