2026-06-25 7 min read
In our years serving Commerce, we've seen this problem again and again: a garage door that won't close all the way. Sometimes it reverses halfway down. Sometimes it stops completely. The good news is that most causes are fixable, but waiting too long turns a simple repair into an expensive replacement. Let's walk through what's actually happening and when you need professional help.
A garage door that won't close is almost never a single point of failure. It's usually one of five culprits working alone or together. The most common reason is a misaligned or dirty photo eye sensor. These safety sensors sit about 6 inches off the ground on both sides of your garage opening. If they're blocked by dust, spider webs, or a parked bicycle, the door thinks an obstacle is below it and reverses for safety.
The second major cause is a broken torsion spring. These metal coils above your door carry 90% of its weight. When one breaks, the opener can't lift the door smoothly. Springs typically last 7 to 9 years with normal use. If your door is older than that and suddenly won't close, a broken spring is almost certain.
The third issue involves the door tracks themselves. Dents, rust, or debris in the tracks create friction. Your opener strains against this resistance and either gives up or reverses the door to protect itself.
Fourth is a worn or slipping drive belt or chain on the opener. These wear out over time and lose grip. The door moves slowly, hesitates, or stops partway.
Finally, the garage door opener itself may have lost power, tripped a safety feature, or developed an internal fault. This is less common but worth checking first.
Let's start with the easiest fix. Walk to both sides of your garage door opening at ground level. Look for two small black boxes about 6 inches up from the concrete. One has a small red light. The other has a small green light. These are your photo eye sensors.
Check for obvious blockages. Move any items in front of them. Wipe each lens gently with a dry cloth. Sometimes a layer of dust or cobwebs is enough to trigger a safety reverse.
If the lights are off or dim, the sensors may have lost power. Check the outlet they plug into. If cleaning doesn't fix the problem and both lights are working, the sensors themselves may be misaligned. This requires professional adjustment. Garage Door Commerce can troubleshoot and realign sensors in one visit. Schedule a free quote today and we'll diagnose the issue at no charge.
**Need garage door repair in Commerce today?** Call 213-727-4543. we cover same-day service across the area.
Never attempt to adjust or replace a torsion spring yourself. These springs are under extreme tension and have caused serious injuries. If you suspect a broken spring, stop using the door and call for help immediately.
You can visually inspect the tracks. Look for large dents, rust, or debris. If the tracks are visibly damaged, professional repair is necessary. A minor dent might be tapped out, but track replacement is often the safer choice.
For the opener, listen to it when the door won't close. Does the motor run but the door doesn't move? That's usually a belt or chain issue. Does the motor not run at all? Check that the opener is plugged in and the outlet has power. Try the wall button and the remote separately. If neither works, the opener's internal circuit board may have failed.
If you own a smart garage door opener, check the app for error codes or status messages. Our post on smart garage door technology in Commerce covers what those alerts mean and how to respond.
Stop troubleshooting if any of these apply: the door is completely stuck, you see a visibly broken spring, the tracks are severely bent, or you've tried the basic fixes and nothing works. A broken garage door is not working safely for your family or your home security.
Attempting repairs without training can make things worse and void your warranty. We offer same-day estimates and repair appointments across Commerce and Long Beach. Most jobs can be completed in under two hours. For pricing details and what a real estimate looks like, check our garage door cost guide.
Call Garage Door Commerce at 213-727-4543 right now if your door is stuck. We'll ask a few quick questions over the phone and get a technician to you the same day if possible. For non-emergency issues, contact us online and we'll confirm your appointment within one hour.
A garage door that won't close is a security risk and a safety hazard. Don't let it sit. The longer you wait, the more damage the opener takes trying to force a broken mechanism.
Q: Will my garage door opener burn out if I keep trying to close a stuck door? A: Yes. The motor will overheat and the circuit board can fail if forced against resistance repeatedly. Stop trying after two or three attempts and call for help.
Q: Can I replace the photo eye sensors myself? A: You can clean them and check the wiring, but alignment requires precision tools. Misaligned sensors will keep triggering false reversals.
Q: How much does a garage door repair cost in Commerce? A: Simple fixes like sensor cleaning are $75 to $150. Spring replacement runs $300 to $500. Track repair varies by damage severity. We provide free estimates.
Q: Is it safe to use my garage door if it won't close all the way? A: No. An open or partially closed door invites theft, pests, and weather damage. Use it only if absolutely necessary and call for repair immediately.
Q: What if the problem happens at night or on a weekend? A: We offer emergency garage door repair in Commerce. Call 213-727-4543 anytime and ask about after-hours availability.