A broken garage door spring feels like it comes out of nowhere — a loud bang, and suddenly the door won't budge. But springs almost always warn you first. Catch the signs early and you can schedule a calm, planned repair instead of an emergency with your car trapped inside.
Springs are rated for roughly 7 to 14 years of normal use — about 10,000 to 20,000 open/close cycles — and they wear gradually. Here is what that wear looks like.
Key takeaways
- Springs warn you before they break
- A heavy, jerky, or slamming door is the biggest tell
- A visible gap in the coil means it's already broken
- Never DIY spring replacement — the tension is dangerous
- Replace both springs together
1. The door feels heavy or won't stay open
The springs counterbalance the door's weight. As they weaken, the door gets heavy, won't hold halfway, or slams shut when you'd expect it to stay put.
2. The opener strains, hums, or struggles
When springs fade, the opener is forced to do their job — and it wasn't built for that. Straining, humming, or slow lifting is a classic early sign.
3. A visible gap in the spring coil
Look at the spring above the door. A one- to two-inch gap or separation in the coil means it has already broken — even if the door still moves a little.
4. The door opens crooked or jerky
If one side lags or the door moves unevenly, a spring (or the cable it works with) is failing on that side.
5. A loud bang from the garage
The snap itself sounds like a gunshot or a heavy object falling. If you heard it and now the door won't lift, that's almost certainly the spring.
6. The door closes too fast or slams
Lost counterbalance means gravity wins on the way down. A door that drops fast is both a symptom and a safety hazard.
7. Grinding, squeaking, or rust on the springs
Worn, dry, or corroded springs are on their way out. Bay Area homes near the water can see faster corrosion from humidity and salt air.
What to do if you spot these signs
Don't keep forcing the door — you'll stress the opener, the cables, and the second spring. And don't try to fix it yourself: torsion springs store enough energy to cause serious injury.
Call a technician for an inspection. If your door has two springs and one is failing, plan to replace both — they wear at the same rate, so the second is close behind.
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