Garage Door Feels Really Heavy to Lift by Hand
If your garage door suddenly feels really heavy to lift by hand, it almost always means a broken or weakened torsion spring above the door, not a problem with the door itself. A properly balanced door takes only about 7 to 10 pounds of effort to lift because the springs carry the weight; when a spring fails, you're suddenly hoisting the door's full 100 to 350 pounds. Stop using the opener and don't keep forcing the door, because spring repair is a job for a pro with the right tools.
Step by step
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1
Look for a broken torsion spring above the door
Pull the release cord to disconnect the opener, then look at the spring (or springs) on the metal shaft above the door opening. A broken torsion spring shows an obvious 1 to 2 inch gap where the coil snapped apart. If you have extension springs running alongside the horizontal tracks instead, check those for a break or a stretched-out, sagging look. A visible gap is your answer right there: a snapped spring is the number one cause of a heavy door.
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2
Do the balance test with the opener disconnected
With the opener still disconnected, lift the door by hand to about waist height and let go. A healthy, balanced door will mostly hold its position. If it slams down hard or feels like you're deadlifting it the whole way up, the springs aren't carrying the load anymore, even if you can't see an obvious break. This confirms it's a counterbalance problem and not the opener or tracks.
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3
Rule out a seized or rusty roller and track issue
Run your eye along the rollers and tracks. Bent track, a roller that jumped out of its channel, or thick rust and grime can add a lot of drag and make a door feel heavy, though usually not as dramatically as a broken spring. Wipe the tracks clean (don't grease the tracks themselves) and apply a garage-door-rated lubricant to the rollers, hinges, and spring coils. If the door still fights you after that, the springs are the culprit.
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4
Check whether the cables came off the drums
The lift cables run from the bottom corners of the door up to drums on the spring shaft. If a cable slipped off its drum, frayed, or snapped, the door can hang crooked and feel heavy or bind on one side. Look for a loose, dangling, or unwound cable. Cables are under the same high tension as springs, so note the problem but don't try to re-seat them yourself.
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5
Stop operating the door and leave it down
Don't keep running the opener against a heavy door; you'll burn out the motor, strip the gears, or snap a cable. If the door is stuck open, prop it securely or have a helper hold it while you place a sturdy support (like a stepladder under each side) so it can't crash down on a car or person. Then leave it alone until it's repaired.
When to call a pro
Call a pro for anything involving the springs or cables: they're under extreme tension and can cause serious injury, so torsion spring replacement, cable repair, and re-balancing should always be handled by a trained garage door technician with the proper winding bars.
Call (888) 290-7421Frequently asked
Why is my garage door suddenly so heavy to lift?
The most common reason is a broken or worn-out torsion spring. The springs counterbalance the door's weight, so when one fails you feel the door's full 100 to 350 pounds instead of the usual 7 to 10 pounds. Less often, it's a cable that slipped off its drum or badly rusted rollers and tracks adding drag.
Is it safe to use my garage door opener if the door feels heavy?
No. Running the opener against a heavy, unbalanced door forces the motor to lift weight it was never designed to handle, which burns out the motor, strips the drive gear, or snaps a cable. Disconnect the opener with the release cord and leave the door closed until a technician fixes the underlying problem.
Can I replace a broken garage door spring myself?
We strongly recommend against it. Torsion springs store a huge amount of energy and require special winding bars and technique to release and install safely; mistakes cause severe hand, face, and eye injuries every year. A pro can swap a spring in under an hour and will rebalance the door so it lasts.
How much does it cost to fix a heavy garage door?
A single torsion spring replacement typically runs about $200 to $350 installed, depending on the spring size and your area, and many techs recommend replacing springs in pairs since they wear at the same rate. Cable or roller repairs are usually less. Get a quote up front, and ask whether replacing both springs together makes sense for your door.
Rather leave it to a pro?
Licensed local techs, same-day service, upfront pricing, and a 1-year warranty.