Garage Door Won't Open? Troubleshoot These 5 Issues in Commerce, CA

2026-05-30 7 min read

Here's what most homeowners don't realize about garage door repair in Commerce: a door that won't open isn't always a spring problem. It could be the opener, the tracks, the remote, or even the safety sensors. Most people panic and force it, which causes real damage. We've seen garage doors get stuck mid-track, bent panels, and broken openers because someone tried to override a safety system. This post walks you through the five most common culprits so you know what's fixable today versus what needs professional hands.

Check Your Remote and Batteries First

Before you assume your garage door is broken, test the simplest variables. Replace the batteries in your remote. Try the wall button inside the garage. If the wall button works but the remote doesn't, you've isolated the problem to the remote itself, not the door mechanism. Buy new batteries at any hardware store and retry. This solves roughly 15% of "won't open" calls we get in the Commerce area. If both the remote and wall button fail, move to the next check.

Inspect the Safety Sensors

Modern garage doors have infrared sensors on both sides of the opening, usually 6 inches from the ground. These sensors prevent the door from closing on people or objects. If either sensor is blocked, dirty, or misaligned, the door won't open. Look for dust, spider webs, or anything covering the lens. Wipe them clean with a soft cloth. Check that both sensors have a clear line of sight to each other. If you see red or blinking lights on the sensors, they're detecting an obstruction. Move any boxes, cars, or debris out of the way. Sensor misalignment is one of the most common reasons a door gets stuck, and it's usually a five-minute fix.

**Need garage door repair in Commerce today?** Call 213-727-4543. we cover same-day service across the area.

Look at the Track and Rollers

A garage door won't open smoothly if the tracks are bent, dented, or full of debris. Walk around both sides of the door and look for obvious damage. Debris like leaves, dirt, or rust can jam the rollers. Use a shop vacuum or broom to clean out the tracks thoroughly. If you spot a bent section in the track, don't try to hammer it straight. That usually makes it worse. A bent track requires professional replacement to avoid further damage to the door panels and opener. For detailed maintenance steps, review our garage door maintenance checklist for homeowners to stay ahead of track problems.

Check the Springs and Cables

Garage door springs are under extreme tension. A broken spring will prevent the door from opening because the opener can't lift the full weight of the door. Do not attempt to replace springs yourself. This is where we see the most serious injuries. If you hear a loud bang or snap when trying to open the door, a spring has likely broken. You'll need professional garage door repair to safely replace it. Springs typically last 7 to 9 years depending on use. If your door is older and was working fine until now, a spring failure is likely. Learn more about spring issues in our post on warning signs your garage door springs need replacement.

Test the Opener and Power Supply

If your opener is humming but the door isn't moving, the motor may have lost power or the gears inside have stripped. Check that the opener is plugged in and that your garage circuit breaker hasn't tripped. Flip the breaker back on if needed. If power is flowing but the door still won't move, the opener's internal gears may be damaged. This requires professional repair or replacement. A new opener runs between $300 to $600 installed, depending on the model and features you choose. Before spending that money, get a free estimate from our team to confirm what's actually broken and what the cost will be.

You've now troubleshot the most common reasons a garage door won't open. If none of these steps work, the issue is beyond DIY territory. Forcing a stuck door risks personal injury and expensive repairs to the panels, tracks, and opener.

Contact Garage Door Commerce today at 213-727-4543 to schedule a free quote. We service Commerce and surrounding areas with same-day repair availability. Our technicians will diagnose the problem and give you an honest cost estimate before any work begins.

Frequently Asked Questions

Why won't my garage door open even though the opener is running? The opener motor may be running but the door isn't lifting due to broken springs, bent tracks, or stripped gears inside the opener. Springs are the most common cause. Do not force the door; call a professional to inspect it safely.

Can I fix a misaligned garage door sensor myself? Yes. Loosen the bracket holding the sensor and carefully realign it so both sensors face each other directly. Wipe the lenses clean. If the door still won't open after alignment, the sensor may be faulty and needs replacement.

How much does it cost to repair a garage door that won't open? Cost depends on the cause. Sensor cleaning is free if you do it yourself. A broken spring replacement runs $200 to $400. Opener repair or replacement ranges from $300 to $700. Get a professional estimate for your specific issue.

How long do garage door springs last? Most residential springs last 7 to 9 years with normal use, around 10,000 cycles. Heavy daily use shortens lifespan. Regular maintenance helps extend their life, but replacement is inevitable.

Should I try to open my garage door manually if the opener is broken? Only if the springs are intact. Broken springs make the door extremely heavy and dangerous to lift. If unsure, leave it closed and call for professional repair instead of risking injury.

Back to Blog