A garage door that opens a few inches and stops, or quits halfway, is usually too heavy for the opener because a spring is broken or worn. Check from the floor. Safety: stay out from under it and leave the release cord alone. Springs: a gap in a coil. Cables: both taut on their drums. Track: something in the way or a bent section.
Likely causes
- A broken or worn-out spring, so the opener hits its force limit
- A frayed lift cable or one slipping on its drum, so one side lags
- A roller binding in a bent or misaligned track, or something in the way
- An up travel limit set short, so the trolley stops before the door is open
- A worn opener gear or trolley slipping under load
What you are seeing
The door lifts a few inches and stops, or rises a foot and reverses back down. Or it gets halfway, stops, and sits there with the opener humming. Sometimes it runs down fine but will not go all the way up.
Some doors have opened only partway for weeks, a little less each time. Others did it suddenly, often after a bang nobody connected with the door.
Either way, a door stopped partway is a door under unusual load. Do not walk or drive under it, and do not keep pressing the button to see if it goes this time.
What usually causes it
A spring. The opener stops when it feels more resistance than it should. With a broken or tired spring, the door is heavier than the opener expects, so it stops after a few inches. This is the most common cause.
A cable. A frayed cable, or one slipping on its drum, lets one side lag, so the door twists and binds partway up.
A binding track. A bent track, a loose bracket or a seized roller catches the door at the same spot every time, and so does something hung on the track.
The travel limit. If the up limit is set short or has drifted, the trolley stops where it was told to. A worn gear or a trolley slipping under load looks much the same.
Need your garage door moving again today?
Call or text with your address, single or double door, and what the door is doing. The price is firm before the truck leaves the yard.
What you can safely check in two minutes
Never keep running the opener on a door that stops partway, and keep everyone out from under it until it is down.
- Springs. Look for a gap in a torsion coil or a loose extension spring. If you see one, unplug the opener and stop here.
- Cables. Both should be taut and wrapped on their drums. A slack one on one side means stop.
- Locks. A slide bolt half engaged can catch the door as it rises.
- The path. Look along both tracks for anything in the way, without reaching in.
- Release cord. Do not pull it while the door is partly open. If a spring is broken, the door can fall.
Which repair fixes it
We check balance first: with the springs intact, a balanced door stays put when lifted halfway by hand with the opener disconnected.
- A broken or tired spring: spring replacement, then the door is balanced.
- A frayed or slipping cable: cable and drum replacement.
- A bent track or seized rollers: rollers and hinges, or off-track repair if the track is out of line.
- A short travel limit, a slipping gear or trolley: opener repair.
We never just turn up the force setting to make a heavy door go. That hides the real problem and weakens the safety reverse.
When a repair stops making sense
A spring, a track section or a set of rollers is worth fixing on almost any door. The math changes when:
- The opener is old and underpowered for a heavy door, and its gear or logic board keeps failing. A new opener with battery backup may be the better spend; see opener replacement.
- An insulation kit or other add-on made the door heavier years ago, and nobody resized the springs.
- Sections are cracked or rusted so the door flexes and binds no matter how well the track is set.
A new garage door is a job for a licensed contractor, and we say so.
Across San Diego
In Lemon Grove, many garages still have a one-piece tilt-up that swings out on pivot brackets instead of running in tracks. When those brackets wear, the door can hang up partway and sit at an angle.
In the older neighborhoods of Vista, tilt-ups and the steel sectionals that replaced them often both run extension springs, and a stretched or broken one is a common reason the door quits halfway.
Near the coast, rusted rollers and track drag the door until the opener gives up.
Stuck Halfway or Opens a Few Inches: common questions
Why does my garage door open a few inches and then stop?
Most often a spring has broken or worn out, so the door is heavier than the opener expects and its force limit stops it. Look at the springs above the door for a gap in the coil. A lock partly engaged or a roller binding low in the track can do it too. Do not keep pressing the button.
Why does my garage door stop halfway up?
Something at that point is adding resistance: a bent track, a seized roller, a hinge catching, or a door made heavy by tired springs. It can also be the opener up travel limit set short. If it stops at the same spot every time, the track or a roller at that height is the usual suspect.
Can I just turn up the force on my garage door opener?
No. The force setting is part of the safety system: it decides how hard the opener pushes before it gives up or reverses. Turning it up to drive a heavy or binding door hides the real problem and lets the door push harder against a person, a pet or a car. Fix the spring or track instead.
Is it safe to leave my garage door stuck halfway open?
Leave it rather than force it, but keep everyone out from under it. Do not pull the emergency release while it is partly open, because a door with a broken spring can drop. Unplug the opener so nobody runs it, and mark the doorway off so no one walks or drives under the door.
What do I do if my garage door is stuck open?
First look at the springs and cables from the floor. If one is broken, leave the door up, unplug the opener and do not pull the release cord, because the door can fall. If they look fine, check the sensor lights near the floor and the lock button on the wall console, since either can stop a close. If it still will not come down, call rather than force it.
The FAQ page has more answers. Not sure which part failed? Send a photo and we will name it.
Where we see this
We cover all of San Diego County, same day in most cases. Some of the places we work:
Related guides
- Broken Garage Door Spring: What to Do Right Now: Heard a loud bang in the garage? How to spot a broken spring, why the door stays shut and the opener off, and what to do while you wait for the repair.
- Garage Door Won't Open or Close? A Safe Checklist: Garage door stuck? Safe checks in order: power, wall control lock, remote battery, sensor lights and release cord, plus which symptom needs which repair.
- Repair or Replace Your Garage Door Opener?: When a garage door opener is worth repairing and when to replace it: drive gear, logic board, rolling code, California battery backup law and drive types.
Ready to get the door moving again?
One call or text gets you a straight answer and a firm price before the truck rolls. Mon to Sat 7am to 7pm.