Broken Torsion Spring Replacement
Broken Torsion Spring Replacement: what it fixes, how it is diagnosed, and what to check first before any part is replaced.
What this service fixes
A torsion spring sits on a shaft above the door and carries most of the door's weight through winding tension. When it breaks, the break is usually obvious: a loud bang from the garage, a visible gap of an inch or more in the coil, and a door that suddenly feels far heavier than it did the day before.
The first thing to do is stop using the opener. An opener pulling against a broken torsion spring strains its gear and rail, and it can drag a heavy door unevenly enough to bend a track or snap a cable. Disconnecting the opener and leaving the door where it is protects both the opener and the door while the spring is replaced.
Three things that decide whether this job is done right
- The replacement spring is matched by four measurements, not by door size alone: wire size, inside diameter, spring length, and wind direction. A spring that looks the same but is wound the wrong way or sized for a lighter door will not balance the door.
- Most residential doors use one or two torsion springs on a single shaft. A two-spring door that loses one spring still has tension in the other, so the shaft and remaining spring must be handled as a loaded assembly, never as loose parts.
- After fitting, the door is balanced by hand: with the opener disconnected, a correctly balanced door stays put when lifted halfway and does not fall closed or spring upward on its own.
- The technician also inspects the cable drums, end bearing plates and centre bearing while the shaft is apart, because a worn drum or bearing is the part most likely to fail next on the same assembly.
How the job is carried out
- Measure the broken spring and weigh the door type so the replacement matches wire size, inside diameter, length and wind direction.
- Release the remaining tension in a controlled way, remove the broken spring from the shaft, and inspect drums, bearings and cables before anything new goes on.
- Fit the matched spring, wind it to the tension that balances that specific door, and set the cable tension evenly on both drums.
- Test the balance by hand with the opener disconnected, then reconnect the opener and test the safety reverse and the full travel.
- Walk through the result with the homeowner: how the door should feel, what a new gap or noise would mean, and when to call again.
What is checked first
Before winding, the technician checks that the cables sit squarely in the drum grooves, that the end bearings turn freely, and that the door runs level in its tracks without binding on one side.
What goes wrong if the job is delayed
Waiting on a broken torsion spring usually ends with a second repair: the opener gear wears, a cable jumps its drum, or a homeowner tries to force the door and bends a panel or track. Each of those turns a spring job into a spring-plus-opener or spring-plus-track job.
What is included, and what is not
Included: Matched torsion spring, controlled removal of the broken spring, winding and balancing, drum and bearing inspection, and a full travel and safety-reverse test.
Not included: This page does not promise a price or an arrival time, because neither has been supplied for this business. Opener gear or panel damage found during the visit is quoted separately before any extra work starts.
Questions customers ask about this service
How do I know the spring broke and not the opener?
A broken torsion spring usually leaves a visible gap in the coil above the door and the door becomes very heavy to lift by hand, while the opener motor still hums or strains. If the door is heavy with the opener disconnected, the spring is the first suspect, not the motor.
Should both springs be replaced if only one broke?
On a two-spring door, replacing the pair is often discussed because both springs have lived the same number of cycles, so the second is usually close to the same fatigue point. The decision is made on the condition of the remaining spring and the door's balance, and it is explained before work starts.
Can I keep using the opener until the repair?
No. Running the opener against a broken spring forces the motor and rail to carry weight they were not built to carry, and it can bend a track or snap a cable. Leave the door closed, disconnect the opener, and call for the spring repair.
Call for this service
Call (877) 318-0816 for broken torsion spring replacement help.
Massachusetts ZIP pages for this service: Barre 01005, West Warren 01092, Ashby 01431, Groton 01450, Pepperell 01463, Winchendon 01475, Charlton 01507, Holden 01520, Millville 01529
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