Garage door off track, roller and hinge repair

How a door comes off its track

• Something was in the way. A bin, a bike, a ladder or a vehicle bumper. The door lands on it, the bottom section stops, the rest keeps going, and a roller pops out.
• A roller seized or fell apart. Plastic rollers and worn steel rollers both eventually stop rolling and start dragging.
• A hinge tore out of a section. Common on older steel doors where the sheet metal around the hinge has fatigued or rusted.
• A cable came off its drum, so one side of the door rose faster than the other and the door racked in the opening.
• The track was loose. Fasteners into the jamb work loose over years of vibration and the track slowly moves out of alignment until a roller finds the gap.
• Someone backed into it. Very common, and often the door goes back on track fine while the bottom section is a write-off.

What you can safely check before we arrive

DASMA publishes a homeowner procedure for exactly this, and it is worth following as written, including where it tells you to stop. From inside the garage, with the door left where it is:

1. Look for misalignment of the door or its components, including broken or cracked glass.
2. Look at the jambs and header for loose or improperly attached connections.
3. Look at the track for loose fasteners or misalignment.
4. Check that the rollers are sitting in the track without tension, and that the roller shafts can slide and turn in their brackets.
5. Check that roller brackets and hinges are attached and not loose.
6. Look at the spring system for loose cables, without touching anything it is fastened to.
7. Look at the sections from both sides for cracks, dents or buckling.

DASMA's instruction is explicit: if any problem is observed during the visual inspection, the inspection should stop immediately, the door should not be operationally tested, and a trained technician should be contacted. Any deformation of panels, tracks or hardware makes the door questionable as to whether it is operable at all.

Source: DASMA Technical Data Sheet #174, Building Occupant — Checking a Residential Sectional Garage Door for Damage (PDF), Notes and Visual Inspection. Checked 31 August 2026.

What the repair involves

1. The door is supported so nothing moves while it is being worked on, and the counterbalance is dealt with first.
2. The sections are brought back into the track and squared in the opening.
3. Bent track is either straightened or replaced. Track that has been crushed does not go back to true, and pretending otherwise means a door that binds forever afterwards.
4. Damaged rollers, hinges and brackets are replaced.
5. Track fasteners into the jamb are re-set, because loose track is usually why it happened.
6. The door is balance-tested and the opener force and travel limits are re-checked.

Rollers: the cheapest upgrade on a garage door

If your door is loud, most of that noise is the rollers. Basic doors ship with plastic or unsealed steel rollers that get noisy and eventually seize. Nylon rollers on sealed bearings are quieter, last longer and put less drag into the whole system, which means less load on the opener and less fatigue in the cables.

Worth doing when: the door is loud enough to hear through the house, a roller has already failed, or the door is being worked on for another reason and the labour is already spent.

When the section is the problem, not the track

If a section is buckled or a hinge has torn a hole in the steel, putting the door back on the track fixes the symptom and not the cause. Depending on the door, a single section can often be replaced. We will tell you which situation you are in before doing the work rather than after.