Open Sesame Garages · Oklahoma City
My garage door cable snapped. What should I do?
Stop using the door immediately: unplug the opener, keep people and cars out from under it, and do not try to re-thread the cable or loosen the bottom bracket, because both connect to the springs under full tension. A door with one cable is being held unevenly and can drop or jam further on the next cycle. If the door is closed, leave it closed; if it is stuck partway open, call for emergency service rather than forcing it down.
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How to tell a snapped cable from a broken spring
- Snapped or slipped cable: the door sits or hangs crooked, one side higher than the other, with a loose cable dangling beside the track or unwound from its drum.
- Broken spring: a gap in the coil on the bar above the door, usually after a loud bang, and a door that is very heavy but may still sit level.
- Often both: a spring that breaks can throw a cable off its drum, and a cable that snaps can leave the spring spinning free. Assume both are involved until a technician checks.
Why cables fail
Lift cables fray at the bottom bracket, where moisture collects and the cable bends every cycle. In Oklahoma, cables on older doors in the east metro often show rust and broken strands long before they snap, which is why a frayed cable found on any service visit is worth replacing on the spot.
Cables also jump their drums when a door goes off track, hits an obstruction, or loses a spring, so a slack cable is sometimes the symptom rather than the cause.
What the repair involves
The door is secured and the spring tension released before anything else. Both cables are replaced as a pair, because the surviving one has the same wear, then re-seated evenly on both drums so the door lifts level. The springs, drums, bottom brackets and rollers are inspected, the door is re-tensioned and balance-tested, and it is cycled with the opener before the technician leaves.
Cable work is quoted after inspection, because what else moved when the cable let go decides the job. On off-track repairs in the OKC metro, replacement cables usually add about $150 to $250. After-hours calls add a service fee quoted on the phone before dispatch.
Related questions
Can I replace a garage door cable myself?
Not safely without releasing the spring tension first, which means winding bars and knowing the turn count for the door. The bottom bracket the cable attaches to is under that same tension, and the door manufacturers trade association says it should be adjusted only by a trained technician.
Can I leave a door with a snapped cable until morning?
If the door is fully closed, resting on the floor, and nobody operates it, usually yes. If it is stuck partway open, hanging crooked, or the house is standing open, treat it as an emergency.
Does homeowners insurance cover a snapped garage door cable?
Wear-and-tear failures such as aged or rusted cables generally are not covered. Cable damage from a sudden event such as a vehicle strike often is. Photograph the door before the repair and ask your carrier.
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Open Sesame Garages serves Oklahoma City and the surrounding metro with same-day estimates and 24/7 emergency repair.