What to Do When Your Garage Door Won't Close

A garage door that won't close is more than an inconvenience – it's a security risk for your home. Before calling for emergency repair, try these troubleshooting steps.

Common Causes & Quick Fixes

1. Check the Safety Sensors

The most common reason a garage door won't close is misaligned or obstructed safety sensors. These sensors are located near the bottom of the door tracks on both sides.

• Look for obstructions: Remove any items blocking the sensor path
• Clean the lenses: Wipe with a soft cloth – dust and spider webs can block the beam
• Check alignment: Both sensors should have solid LED lights (not blinking)
• Verify wiring: Ensure wires aren't damaged or disconnected

Homeowners in Wilton and Stamford often call us about sensor issues that turn out to be simple fixes.

2. Inspect the Tracks

Your garage door tracks need to be clear and properly aligned:

• Look for debris, leaves, or objects in the track
• Check for dents or bends in the metal
• Ensure the tracks are firmly attached to the wall

3. Check the Remote & Wall Button

Sometimes the problem is simpler than you think:

• Replace remote batteries
• Try the wall-mounted button – if it works, the remote needs new batteries or reprogramming
• Check if the opener is plugged in and has power

4. Look at the Limit Switch Settings

The limit switches tell your opener where to stop. If set incorrectly, the door may reverse before fully closing. This adjustment is often located on the back of the opener unit.

5. Test the Door Balance

An unbalanced door puts extra strain on the opener:

1. Disconnect the opener by pulling the emergency release cord
2. Manually lift the door halfway and let go
3. The door should stay in place – if it falls or rises, the springs need adjustment

Temporary Solution: Manual Operation

If you need to close your door immediately for security:

1. Pull the emergency release cord (usually red, hanging from the opener track)
2. Manually lower the door
3. Lock it using the manual lock if available

This allows you to secure your home while waiting for professional repair.

When to Call a Professional

Contact Round Hill Garage Door Repair if:

• The door still won't close after trying these steps
• You hear grinding, scraping, or popping sounds
• The door appears crooked or off-track
• Springs appear broken or damaged
• Cables are frayed or hanging loose

We serve Darien, New Canaan, Norwalk, and all of Fairfield County with same-day emergency service.