The instinct is to force the door. The right instinct is to establish which kind of stuck you have and whether the door is safe to touch at all, because a door held by damaged hardware should not be moved by hand.
Make it safe first
- Keep everyone away from the opening while you work on it.
- Do not stand under or in front of the door if it is unsupported.
- Clear any obstruction between the sensors or in the path of the door.
- Clean both sensor lenses and check the units are aligned and firmly mounted.
- Check whether the door is square in its opening, or leaning and off its rollers.
Which kind of stuck you have
Three different situations that get described with the same two words, and they need different responses.
| Position | What is usually holding it there | Safe to force? |
|---|---|---|
| Stuck open | Broken cable, failed spring, sheared bottom bracket, or a door that will not close at all | No. If the hardware is compromised, pushing it can bring it down. |
| Stuck closed | Binding rollers, a bent track section, or a bent panel in the guides | Usually not. Pulling hard bends the panel and tightens the problem. |
| Stuck partway | A roller out of its groove, a bent panel, or a track obstruction at that exact height | Sometimes, gently. It always stops at the same point, and that point is the diagnosis. |
The useful detail on the call is the position the door stops at, measured roughly, and whether it stops at the same height every single time. A door that stops in the same place is telling you where the fault is.
Why a stuck-open door matters beyond inconvenience
Two separate concerns, and the second is the more urgent one.
Security. An open garage in a residential street is exposed. The contents are visible, the house may have internal access through it, and it is simply an invitation. This is why a door that will not close is worth treating as a real fault rather than something to live around.
Stability. Depending on the cause, an open door may be held in place only by a spring or a bracket that is about to fail. A door whose springs have been compromised, or whose bottom brackets have sheared, can come down without much warning. This is a real scenario, and it is why the instruction to keep clear of the opening matters.
If the door is stuck closed
This is the more common of the two fixed positions, and it is usually a hardware or geometry problem rather than a failure.
- Binding rollers. A roller has seized, or the roller and track mismatch has the door wedged in the guides. This is the most common cause and the least dangerous.
- A bent panel. A dent across a section catches in the track and the door jams at a predictable height.
- Bent track. A track that has been knocked, or has spread apart, closes the gap the rollers need.
- Swollen or delaminating panels. On older wood doors in this city, a panel that has swollen at the bottom edge can jam in the guides.
It is worth knowing that a stuck-closed door is normally safe to keep opening and closing if the opener can still move it. Forcing it shut is the risky move, because that is where the panel catches and bends. If the door will not open either, treat it as the stuck-open case and see the safety notes above.
Why a door will not close
| What happens | Most likely cause |
|---|---|
| Nothing happens at all, lights flashing | Safety sensors blocked, dirty, or misaligned |
| Closes then reverses partway | Misalignment, or a binding door or track |
| Stops just short every time | Travel limit set too high |
| Stops at the same height, with a scrape | Door off its rollers, or a bent track |
| Stops and the door sounds strained | Out of balance, or a failed drive |
| Drifts down and lands crooked | Broken cable or spring on an extension-spring door |
| Nothing moves and the door is heavy by hand | Springs or cables have failed |
The last two rows are the ones where pushing the door is a bad idea.
Making the opening secure
If the door will not close, securing the opening is the priority rather than the repair.
- Do not operate it repeatedly. Every cycle puts the failing hardware through another load cycle, and if the cause is a bracket or spring, you are shortening the time you have.
- Support the door if it is heavy. If it is being held by compromised hardware, propping or supporting it protects the door and the people near it.
- Secure the opening. If the door will not close, a locked side or rear door, or a secondary barrier, is worth arranging while the repair is sorted. We can talk through the options for your garage.
- Call rather than work around it. Some of the causes — a sheared bottom bracket, a broken cable, a collapsed track section — are not problems to improvise around.
Stopping it happening again
Almost every cause of a door that will not close is preceded by a warning that is easy to ignore:
- A rubbing or scraping noise at the same point in the travel, which means the door is already out of square.
- A heavier feel by hand, which means the balance has drifted and the springs are under more load than they should be.
- Intermittent reversing rather than consistent closing, which is a sensor or track issue that will eventually stop entirely.
- A visible gap or a lean in the door when open, which is a bracket or track anchor problem.
Every one of those is worth a call while it is still a small job. A tune-up is specifically the visit that catches them, and it is the cheapest garage door work there is.
Related services & problems
These usually go together, because the same underlying wear shows up in more than one place.