The part doing all the heavy lifting
Most people assume the opener lifts their garage door. It doesn’t. The springs do. A typical two-car door weighs 150 to 250 pounds or more, and the springs counterbalance nearly all of that weight so the opener, or your arms, only have to guide it.
That’s why a broken spring stops everything. It often happens at the worst moment: the car is inside, you’re running late, and the door won’t budge.
Springs rarely fail without warning, though. Knowing the early signs gives you time to schedule a repair on your terms instead of in an emergency.
Why springs wear out
Garage door springs are rated in cycles, with one cycle equal to one open and one close. A standard torsion spring is commonly rated for around 10,000 cycles. If your household opens and closes the door three or four times a day, that works out to roughly seven to ten years.
Most homes have one of two types:
| Spring type | Where it sits | What to know |
| Torsion | On a metal bar directly above the door opening | Winds and unwinds to lift the door; most common on newer homes |
| Extension | Along the horizontal tracks on each side of the door | Stretches as the door closes; should always have a safety cable running through it |
Usage isn’t the only factor. Humidity, temperature swings and salty coastal air speed up rust and metal fatigue, and a door that’s out of balance makes the springs work harder than they should.
7 warning signs to watch for
- A visible gap in the torsion spring. Look at the coil above the door. A two-inch gap between coils means it has already snapped.
- The door feels heavy. With the opener disconnected, a balanced door lifts with modest effort. If it suddenly feels like dead weight, the springs have lost tension.
- It won’t stay put halfway. Lift the door to waist height and let go. If it drops or shoots upward, the springs are worn or poorly adjusted.
- The door opens unevenly. One side rising faster than the other, or a door that sits crooked, can point to a weak spring on one side.
- Jerky or slow movement. Springs that are losing strength make the door shudder, stall or move slower than usual.
- Rust, stretching or gaps in the coils. Corrosion weakens the metal. On extension springs, coils that look stretched or uneven are a red flag.
- A loud bang from the garage. Springs often break with a sound like a firecracker. If you hear it, assume a spring has failed and don’t run the opener.
What not to do
Springs store enormous energy, and that’s what makes them dangerous. A tensioned torsion spring can spin a winding bar with enough force to break bones, and an extension spring without a safety cable can whip loose across the garage.
If you suspect a spring problem:
- Don’t keep using the opener. It isn’t built to lift the door’s full weight and can burn out or pull the door off its track.
- Don’t try to lift a door with a broken spring. It may be far heavier than you expect and can drop without warning.
- Don’t attempt a DIY replacement or adjustment. Online videos make it look simple, but the tools, spring sizing and winding technique matter, and mistakes cause serious injuries.
- Do replace springs in pairs. If your door has two springs and one breaks, the other is usually close behind.
How to make your springs last longer
- Spray the coils with a garage-door lubricant every few months to slow rust and reduce friction
- Run a balance test twice a year and get the door adjusted if it drifts
- Replace worn rollers and lubricate hinges so the door moves freely
- Ask about high-cycle springs if your household uses the garage as its main entrance; they cost more up front but can last twice as long
- In humid or coastal areas, choose galvanized or coated springs
The bottom line
A garage door spring will eventually wear out, but it doesn’t have to catch you by surprise. Watch for the warning signs, test the door’s balance and call a professional at the first hint of trouble. A planned repair is always cheaper and safer than an emergency one.
About the author
A1A Overhead Door Company is a family-owned garage door company serving Northeast Florida and coastal Georgia since 2000. The team has repaired and replaced residential and commercial garage door springs in coastal communities for nearly 30 years Contact Us.
