Garage door shakes or jerks when it moves
Shaking or jerking can come from rollers, hinges, tracks, the opener drive or weak springs. See what to look for safely and when to stop using the door.
A garage door that shakes, shudders or jerks is giving you a clue. The pattern of the movement helps narrow the cause. This guide explains the common causes, what you can look at safely, and when the door should not be used.
Decide first whether the door is safe to run
Do not run a door that looks damaged
If the door is crooked, off its track, stuck, hanging low on one side, or if you have heard a bang or see a spring gap, do not operate it by remote, wall button or by hand. Do not touch the springs, cables, brackets or tracks. Look from the floor only.
The rest of this guide assumes the door has no visible damage and has been moving normally apart from the shake or jerk. Even then, stop using it if the problem gets worse or any of the warning signs in the last section appear.
What the pattern tells you
When a jerk happens points to its cause. You can note the pattern during ordinary use without running the door extra times. If a repeat run is not safe, a photo or a note of what you have already seen is enough for a technician.
| What you notice | Likely cause |
|---|---|
| A thump that repeats with every roller turn | A worn or flat-spotted roller |
| A jerk strongest at startup, with a slapping sound from the rail | A loose chain or belt on the opener |
| A rhythmic lurch as sections pass the same points | Loose or cracked hinges that let a section shift |
| A catch or stall at the same height every time | A bent or misaligned track |
| Shudders in the top curve of the track | Friction or wear in the curve or horizontal track |
| Random stutter with a straining motor | Weak springs and an unbalanced door |
These patterns are reported by service providers and are guides, not a diagnosis. A technician confirms the cause by inspection.
The common causes in more detail
- Rollers. Worn, stiff or flat-spotted rollers move unevenly in the track, and a flat spot thumps once per turn.
- Hinges. Loose hinge screws, or cracked hinges, let a section shift under load. Stiff or dry hinges also add friction.
- Tracks. Dirt or debris in the tracks adds friction. A bent track catches at the same point each cycle.
- Opener drive. A loose chain or belt slaps the rail when the motor takes up the slack. If a chain does not catch the cog correctly, the door can slip and shudder. See chain, belt, screw and direct-drive openers.
- Balance and springs. An unbalanced door loads one side or the opener more than it should. Spring fatigue is a counterbalance problem, so rollers and lubricant do not fix it. See how a garage door stays balanced.
What you can safely check
Keep these checks to what you can see with the door at rest and undamaged. Keep your fingers clear of the rollers, hinges and the joints between sections.
- Look at the tracks for dirt, debris, dents and bends. You can wipe visible dirt from the inside of the track with a cloth while the door is closed and at rest.
- Look at the hinges and rollers for cracks, loose screws, flat spots or rollers that do not sit in the track.
- Check that both sides of the door sit level with the floor when closed. A difference suggests a balance or cable problem. See garage door hangs crooked.
- Look at the chain or belt on the opener rail for obvious slack. If the opener is making grinding, whirring or slipping sounds, stop and have it looked at.
- Check your opener manual before touching any adjustment on the opener.
A light lubricant on hinge pivots and rollers is a normal maintenance step, and DASMA says a spray-on lubricant is the first thing to try for squeaking. See what to lubricate on a garage door first. Do not lubricate as a way to test a door that may be damaged.
When to stop and bring in a technician
Stop using the door and bring in a technician if:
- The shaking or jerking is getting worse, or the door stops, drops or reverses.
- You see a spring gap, a stretched spring, or a frayed, slack or hanging cable.
- The door is crooked, off its track, or a track or panel is bent.
- A roller has left the track, or a hinge is cracked or broken.
- The opener grinds, slips or strains, or the chain or belt has come loose.
- Simple cleaning does not change the jerk.
Replacing springs and cables, adjusting the bottom bracket, and realigning tracks are technician work. Service providers also tell owners not to dismantle or replace opener parts themselves, and a balance or installation error needs prompt correction by a professional.
Do not adjust springs or brackets
Do not wind, loosen or adjust springs, cables or bottom brackets to stop a shake. They hold dangerous tension and can cause serious injury.
How we fix it
Our technicians inspect the door, confirm the cause first, and repair what has failed. Depending on the finding, that may be roller replacement, track repair and alignment, spring replacement or opener repair, all part of garage door repair. For routine upkeep see garage door maintenance and tune-ups.
If the door also makes noise, read why a garage door is noisy, by sound.
Related services
Sources
Need a technician?
If something on your door looks damaged, stay clear and let a technician handle it.
Questions and answers
Why does my garage door shake only at the start?
A jerk that is strongest at startup often points to a loose chain or belt, which slaps the rail when the motor takes up slack. Worn rollers and loose hinges can also be involved. Do not adjust the opener without checking your model's manual.
Will lubricating the door stop the shaking?
Sometimes, if the cause is dry hinges or rollers. It will not fix a worn roller, a bent track or a weak spring. If a light lubricant does not change the shake, stop and have the door inspected.
Can weak springs make the door jerk?
Yes. An unbalanced door can stutter and strain the motor, and this can read as jerkiness even when the track hardware is fine. Springs are technician work, so do not adjust them.
Should I keep using the door if it only shakes a little?
Only if it has no visible damage and is not getting worse. Stop if it drops, stalls, reverses or looks crooked, and have a technician look at it.
Have a garage door problem?
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