Why Doors Go Off-Track
Off-track is a symptom, not the disease.
A door rarely jumps the track on its own. Something else failed first and let it happen. Here is how Metro diagnoses the real cause, why running the opener makes it worse, and when a bent track can be straightened versus replaced.
The number-one cause: a broken cable or roller. The lift cables and rollers keep the door square and riding in the track. When a cable snaps or a roller shatters, one side of the door drops or twists, and the door binds and then jumps the track. Re-seating the door without replacing the failed cable or roller is a band-aid, it will come off again. We replace cables in matched pairs and upgrade to nylon high-cycle rollers that run quieter and last longer.
Bent track from a bump. A tap from a car bumper, a ladder, or a trailer can kink the vertical track just enough to catch a roller. The door grinds or binds at the same spot each cycle. A minor bend can be straightened and the bracket re-secured; a crimp or crease gets that track section replaced, because a damaged track wears rollers and forces the opener to fight it.
Loose or stripped track brackets. Over years of cycling, the lag bolts and brackets that hold the track to the framing can loosen or strip out of the wood. The track shifts under load and the door wanders off. We re-anchor to solid framing, shim where needed, and re-align the track to spec.
Why you must not run the opener. The opener does not know the door is off-track, it just pushes. Driving a bound or derailed door bends panels, snaps the remaining cable, cracks the track, and can strip the opener gear, turning a modest repair into a full door-and-opener job. The moment a door is off-track or binding hard, stop and disconnect nothing, just call.
Our process. We secure and support the door, release tension safely, re-seat it in the track, and replace whatever failed, roller, cable, or bracket. We straighten minor track bends or replace damaged sections, then cycle and balance-test the door before we leave. From arrival to handoff is typically 45 to 75 minutes depending on what caused the derailment. Everything quoted in writing before we start.