Heard a Loud Bang? Your Garage Door Spring May Have Snapped
That sharp bang like a firecracker or a gunshot in your garage is almost always a broken garage door spring. Those springs are wound under enormous tension, so when one snaps it releases that energy all at once with a loud crack. Don't try to open the door, the spring is what carries the weight, and operating it now can damage the opener or hurt someone, so leave it down and call a pro.
Step by step
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1
Stop and leave the door closed
Resist the urge to test it. Without a working spring the door can weigh 150 to 250 pounds with nothing holding it up, so an open or partly open door can crash down fast. If the door is already down, keep it down and keep kids, pets, and cars clear of it until it's fixed.
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2
Don't use the opener
Your garage door opener is built to guide a spring-balanced door, not lift the full dead weight by itself. Hitting the button with a broken spring can burn out the motor, strip the gears, or snap the lifting cables. Unplug the opener or pull the manual release cord so nobody opens it by habit.
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3
Take a quick look (from a safe distance)
Peek at the springs along the bar above the door (torsion) or the long springs above the tracks on each side (extension). A 2 to 3 inch gap in a coil, or a spring that looks stretched out and separated, confirms it. You may also see a frayed or dangling cable. Look, don't touch, those parts are still under load.
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4
Get your car out only if it's safe
If your vehicle is trapped and you absolutely must lift the door by hand, do it with a second person, lift evenly from the bottom, and prop it solidly with a 2x4 or locking pliers on the track before anyone walks under it. If it feels brutally heavy or won't stay up, stop, it's not worth the risk of it slamming down.
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5
Note what you've got, then call for repair
Snap a photo and count your springs. Many doors use two springs, and if one broke the other is the same age and usually about to follow, so replacing both at once saves a second service call. Have your door's height and roughly how old it is handy when you call.
When to call a pro
Spring replacement is a call-a-pro job, always. Torsion springs hold hundreds of pounds of stored tension and the winding bars can kick back and break bones if you slip, so unless you're trained with the right tools, call a garage door technician the same day, most can come out fast and replace both springs in under an hour.
Call (888) 290-7421Frequently asked
Can I still open my garage door with a broken spring?
Technically by hand with help, but you really shouldn't. The spring counterbalances the door's full weight, so without it the door is a heavy, unbalanced slab that can drop suddenly. Never use the opener with a broken spring, you'll likely damage the motor or cables. If you must get a car out, lift with two people and prop the door before walking under it.
How much does it cost to replace a garage door spring?
Most homeowners pay roughly $200 to $350 to replace a single torsion spring, including parts and labor, and a bit more for a two-spring system done together. Replacing both at once is the smart move, the second spring is the same age and typically fails soon after, and doing them together avoids a second trip charge.
Why did my garage door spring break in the first place?
Almost always normal wear. Springs are rated for a set number of cycles (one open plus one close equals a cycle), usually around 10,000, which is about 7 to 10 years of average use. Cold winter mornings, rust, and skipped lubrication speed it up, which is why so many break with a loud bang on a freezing day.
Is a broken garage door spring dangerous?
The break itself is usually contained, but the situation it leaves behind is the real hazard, an unbalanced door that can fall, plus cables and parts still under tension. The biggest danger is trying to DIY the replacement: the winding bars and tightly wound spring can slip and cause serious hand, face, or head injuries. Keep people clear and let a trained tech handle it.
Rather leave it to a pro?
Licensed local techs, same-day service, upfront pricing, and a 1-year warranty.