Garage Door Won’t Close? 7 Things to Check Before Calling a Technician

If your garage door won’t close, you’re not alone. This is one of the most common garage door problems homeowners experience. Before calling a professional garage door technician, there are a few things you can quickly check yourself.

1. Check for Something Blocking the Sensors

One of the most common reasons a garage door won’t close is something blocking the safety sensors near the bottom of the tracks. Even a small object, dust buildup, or spider web can interrupt the beam and stop the door from closing properly.

2. Clean the Sensor Lenses

Dirty sensor lenses can make the system think something is in the way. Gently wipe both sensors with a soft cloth and try closing the door again.

3. Check Sensor Alignment

If one sensor has been bumped, the two sensors may no longer be facing each other correctly. Misaligned sensors often cause the garage door to reverse before fully closing.

4. Inspect the Tracks

Bent tracks, debris, or buildup inside the tracks can affect how the door moves. Look for visible obstructions and remove any dirt or objects you can safely reach.

5. Test the Remote and Wall Button

Sometimes the issue is with the remote, not the door itself. Try using the wall button. If the wall button works but the remote does not, the remote battery or programming may be the issue.

6. Check the Limit Settings

If the opener’s close-limit settings are incorrect, the door may think it has hit the floor too early and reverse. This is a common issue with garage door openers and may require adjustment.

7. Listen for Unusual Sounds

Grinding, squeaking, or straining sounds may point to worn rollers, spring issues, or opener problems. If the door sounds unusual, forcing it to close may make the problem worse.

When to Call a Professional

If you’ve checked the sensors, tracks, remote, and opener settings and the garage door still won’t close, it may be time to call a technician. Problems with springs, cables, rollers, or opener components should be handled by a trained professional.

• Door starts closing and reverses
• Sensor lights keep blinking
• Door feels heavy or uneven
• Opener strains or makes loud noises
• Tracks or hardware appear damaged