Garage Door Won't Close? 7 Things to Check First

There's nothing more frustrating than a garage door that refuses to close. Whether it's stopping halfway down or not budging at all, a stuck door disrupts your routine and leaves your garage vulnerable. The good news is that many garage door problems have simple fixes you can troubleshoot yourself. Here are seven things to check before picking up the phone.

First, look at your photo eye sensors. These small devices sit on either side of your garage door opening, about six inches up from the ground. They send an invisible beam across the opening, and if that beam is blocked or misaligned, your door won't close as a safety feature. Check if anything is blocking the sensors—a bike, boxes, or even dirt and cobwebs can trigger the problem. Try cleaning the sensor lenses with a soft cloth. If they're dusty or smudged, that alone might solve your issue. You can also try gently realigning them so they point directly at each other.

Next, examine the garage door tracks on both sides. Look for dents, debris, or buildup that might be preventing the rollers from moving smoothly. A bent track can cause serious binding, while leaves or dirt buildup is an easy fix. If you spot minor debris, vacuum it out or brush it away. For small dents that aren't causing the door to stick, you can often leave them alone, but major damage usually requires professional help.

Check your garage door remote batteries. This sounds obvious, but a weak or dead battery is responsible for more service calls than you'd think. Try using your wall button instead. If the door closes from the wall button but not the remote, replace the remote batteries first. If neither works, move on to the next steps.

Inspect the bottom rubber seal of your garage door. If it's cracked, warped, or damaged, the door might reverse thinking it's hit an obstruction. This is actually a safety feature, but a damaged seal needs replacement. A severely damaged seal can also let in weather and pests, so this is worth addressing soon.

Look at the door's balance. Disconnect the opener by pulling the red release cord, then try lifting the door manually about halfway. A properly balanced door should stay put without much effort. If it slams down or is extremely heavy to lift, the springs are likely out of balance. This is a safety issue—never attempt to adjust garage door springs yourself, as they're under extreme tension and can cause serious injury.

Check for obvious obstructions along the door's path. Sometimes a shovel, ladder, or even a child's toy ends up in the way. Clear the area completely and try closing the door again. Also verify that nothing is blocking the door from the outside, like a car, trash can, or fallen branch.

Finally, look at your garage door opener settings. Some openers have a force adjustment that can be set too low, causing the door to reverse before it fully closes. Check your opener's manual if you have it, or search for your model online. Many openers also have a close-force setting you can adjust, though this should be done carefully and only if you're comfortable with mechanical adjustments.

If you've worked through all seven checks and your door still won't close, or if you suspect a problem with the springs, cables, or opener motor, it's time to call a local garage door professional. Springs and cables are under serious tension and shouldn't be handled by anyone without proper training and equipment. The Greensboro area has experienced technicians who can diagnose the real issue quickly and get your door working safely again.

Dealing with this in the Triad? Call (743) 229-7701 for a free garage door repair estimate.