South Dade
Extension Spring Repair in Palmetto Bay
Extension springs stretch along the horizontal track, mostly on older single-car doors. A broken one looks like a loose coil above the car rather than a gap on a shaft over the door. The safety cable running through the coil is what keeps a broken spring from flying. Color bands on the coil are not a full specification for the replacement. A torsion cone does not repair this layout, because the springs are not on a header shaft.
The loose coil overhead
The usual sign is a spring that has snapped and collapsed into a loose coil over the car. The door may feel suddenly heavy, or it may hang because the other spring is doing all the work. You might see the safety cable still threaded where the coil used to be stretched. A bang from beside the horizontal track is this stretch layout, unlike a torsion shaft overhead. People with a single-car door and springs beside the track are in the right place.
Leave the coils parked
Leave the door parked and keep people out from under the horizontal track. Do not touch the coils, the safety cable, or the pulleys at the ends. Springs, set screws on any center shaft, and lift cables all stay untouched. You can look from the floor and say whether one side or both sides let go. Do not try to stretch a broken coil back into place or hook it with a tool.
Safety cable and pair
We replace the broken extension spring and check the safety cable that runs through it. When one spring has failed, the other is often the same age and is replaced as a pair. Pulleys and the cable ends are inspected so the new spring travels instead of rubbing. Balance is set so the door stays put and the opener is not the only lift. Color paint on the old coil is noted, and the real spec still comes from the door.
This layout is different
Extension springs store energy by stretching, and torsion springs store it by winding on a shaft. A torsion cone, a winding bar, and a header shaft belong to the other layout. Putting torsion parts on an extension door does not convert the system. The safety cable is unique to this stretch layout and has to be intact after the repair. Doors that were converted years ago need a look, because both layouts can exist on one old opening.
Older doors in shade
Palmetto Bay still has older single-car doors in enclosed garages on a slab, back on deep shaded lots. Humidity in those rooms can rust the pulley hardware, and the spring still fails from cycles. A canal house with an enclosed garage, not an open dock, can have the same side springs. Shade does not tell you the spring rate, and color bands do not either. Mention a single-car door with springs beside the track so the right layout is expected.
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
How can I tell an extension spring from a torsion spring?
Extension springs run beside the horizontal track and stretch as the door closes. Torsion springs sit on a shaft above the door and show a gap in the coil when they open. A loose coil above the car, with a cable through it, is the extension layout.
Are the colored bands enough to order a new spring?
Color bands are only a clue, and the door itself still has to be measured for the spring. The door weight, the stretch, and the hardware on site choose the replacement. Both springs are often changed together when one has already broken.
Can torsion hardware repair an extension spring door?
A torsion cone does not repair springs that stretch beside the track. The safety cable, the pulleys, and the stretch coils are the parts this layout uses. A door that was converted needs to be identified before any spring is ordered.
Place reference: Village of Palmetto Bay
Request service
Name the street and whether the door is up, down, or stuck.
- Repairs and replacement parts
- Openers and controls
- New garage doors