If you lift your garage door and it will not stay up, it drifts down, creeps closed, or slams shut when you let go, that is not a minor annoyance. It means the door has lost its balance, and the parts that hold its weight are failing. A door that will not stay open is both a red flag and a real safety hazard. Here is what is going on.
Try the Balance Test First
You can confirm it in a minute. With the door closed, pull the red release cord to disconnect the opener, then lift the door about halfway by hand and let go. A properly balanced door stays put. If it drops, slides down, or feels extremely heavy, the springs are no longer carrying the weight the way they should. That is the core of the problem.
Worn or Weakening Springs
Your springs store the tension that counterbalances the door so it holds position at any height. Over thousands of cycles they gradually weaken and lose that tension, so the door starts drifting down and the opener has to work harder. This is the most common reason a door stops staying open, and it usually means the springs are near the end of their life.
A Broken Spring
If a spring has actually snapped, the door loses most or all of its lift, becomes very heavy, and will not stay open at all, and the opener strains or gives up trying to hold it. Our guide to the signs of a broken spring helps confirm it, and our overview of torsion vs extension springs explains the types.
Balance and Adjustment
Sometimes the springs are intact but out of adjustment, or the door has fallen out of balance after a repair or a bump. In that case the tension needs to be reset correctly so the door holds position again. This is precise, high-tension work, not a turn-it-yourself job.
Why You Should Not Ignore It
A door that will not stay open can come down on a car, a pet, or a person, and it puts constant extra strain on the opener and cables, which leads to more failures. Do not prop it open or keep forcing it. Springs and cables carry the door's full weight under enormous tension and are dangerous to work on, so this is a job for a technician who can safely release the tension and replace or rebalance the parts.
Door dropping or refusing to stay up? Do not risk it. Our team provides professional spring repair and same-day garage door repair across metro Atlanta with a free on-site estimate, and we will get your door balanced and holding again.