Common Reasons a Garage Door Won't Stay Open
Most garage doors rely on torsion or extension springs to counterbalance their weight, letting the opener lift and hold the door with minimal strain. When those springs weaken, stretch, or lose tension, the door no longer has enough resistance to stay put and will slowly sink or drop suddenly.
Cables, pulleys, and the opener's internal gears can also wear down over time, especially with frequent use or exposure to Savannah's humidity and salt air, which can accelerate rust on metal hardware.
What Usually Causes This Problem
These are the parts most often responsible when a garage door won't hold its open position.
Torsion or extension springs lose tension with age and repeated cycles, leaving the door without enough counterbalance to stay open.
Lift cables that have stretched or begun fraying can slip on the drum, causing the door to sag or drop unexpectedly.
If the opener's limit switches are set incorrectly, the door may not fully engage the safety stop and can drift back down.
Rollers that have worn down or tracks that have shifted out of alignment create friction and gaps that prevent the door from holding steady.
Coastal humidity can speed up rust on springs, hinges, and cables, weakening the metal enough that it no longer holds tension reliably.
Quick Checks You Can Do Before Calling for Help
A short visual check can help you describe the problem more clearly when you request service.
Next Steps Depending on What You Find
What you should do next depends on which symptoms match your situation.
You See a Broken or Gapped Spring
Stop using the door and avoid the manual release cord near the spring area. This typically calls for a spring replacement, which should be handled by someone experienced with high-tension hardware.
Cables Look Frayed or Loose
A cable that has slipped off the drum or shows fraying is a sign the door could drop unevenly. Request a diagnosis before running the door again.
Everything Looks Fine but the Door Still Drifts
If springs and cables look intact, the issue may be in the opener's settings or the track alignment, both of which are best evaluated in person.
Not Sure What's Causing It?
A quick on-site look can pinpoint whether it's the springs, cables, rollers, or opener settings keeping your door from staying open.