If your garage door won’t close, the most common cause is a blocked or misaligned safety sensor — followed by a broken spring, an obstruction in the track, or an incorrect limit setting. Here’s how to tell which one it is, what you can fix yourself in a few minutes, and when to call for same-day help in Houston.
Common reasons a garage door won’t close
- Safety sensors (most common). The two photo-eyes near the floor must “see” each other. If a sensor light is blinking, gently realign them and wipe off dust or spider webs — both common in Houston garages.
- Something in the path. The door reverses if anything blocks the sensors’ beam or the door’s travel. Clear the opening and the tracks.
- Broken spring. If the door is heavy, won’t stay down, or you heard a loud bang, a spring likely broke — that’s a technician’s job, not a DIY fix.
- Close-limit setting. If the door closes then immediately reopens, the opener’s close-limit may need adjustment.
- Remote or power issue. Try fresh remote batteries and confirm the opener has power.
Quick fixes you can try
- Look at the sensor lights — a blinking light points straight to a sensor problem.
- Wipe both sensor lenses and realign them until both glow solid.
- Clear the door’s path and the tracks of any obstruction.
- Test the wall button versus the remote to rule out a dead remote.
Why does my door close then reopen?
This is almost always a sensor issue (the beam is briefly broken or the sensors are slightly off) or a close-limit setting that thinks the door has already reached the floor. Start with the sensors; if they’re clean and aligned, the limit setting likely needs a professional adjustment.
When to call a professional
If the sensors are aligned and clean but the door still won’t close — or if you suspect a broken spring or cable — call a technician. Springs and cables are under high tension and are not safe to repair yourself, and forcing the door can damage the opener.
Need it fixed today?
BBM Garage Door offers 24/7, same-day garage door repair across Houston and the surrounding suburbs. We’re rated 4.9 stars across 75+ reviews, fully insured, and back our work with a warranty. Call 713-598-3837 or 281-800-5387, or learn more about our garage door repair service.
Frequently asked questions
Why is the opener light blinking when I try to close? Most openers flash a set number of times to signal a blocked or misaligned safety sensor.
Can I close the door manually? Yes, using the red release cord — but if a spring is broken the door can drop, so when in doubt, leave it and call.
How fast can you come out? Same day, 24/7 across the Houston area.