USA Garage Pros
Garage Door Spring Repair
Repair and rebalancing of torsion and extension spring systems that lift a sectional garage door — work that should only be done by someone trained to handle stored spring tension.
Spring Repair
Garage door spring repair
Torsion and extension springs do the heavy lifting on a sectional garage door, counterbalancing most of its weight so the opener only has to manage the rest. Because they're wound or stretched under high tension, a spring that's worn, mismatched, or broken changes how the whole door behaves — it can feel unusually heavy, refuse to stay open, or make a loud bang when it lets go.
Spring repair means replacing or rebalancing the spring system so the door lifts and lowers evenly again. This is one of the few jobs on a garage door that carries a real risk of serious injury if attempted without the right training and tools, since a spring under tension can release its stored energy suddenly if handled incorrectly.
Know the signs
When you need spring repair
Common symptoms
- A loud bang from the garage, often followed by the door feeling very heavy
- Visible gap or separation in a torsion spring coil above the door
- Door won't stay open partway, or drops quickly when disconnected from the opener
- Opener strains, struggles, or makes grinding noises trying to lift the door
What the service covers
- Inspection of the spring system, shaft, bearing plate, and cable drums
- Safe release of any remaining tension in a damaged spring before removal
- Replacement or rebalancing of the spring set matched to the door's weight
- Test of door balance and smooth travel through a full cycle
The process
How the work is done
- 1
Confirm the spring is the issue
The spring, shaft, bearing plate, and drums are inspected, since a heavy or uneven door can sometimes point to a different cause.
- 2
Safely relieve stored tension
Any tension remaining in a damaged spring is released using proper winding bars and clamps before the spring is removed.
- 3
Fit and set the new spring
A spring matched to the door's weight and cycle needs is installed and wound to the correct tension on the shaft.
- 4
Balance and test the door
The door is cycled to confirm it lifts evenly, holds position when partly open, and the opener no longer strains.
Decide
Repair or replace?
| Repair usually makes sense when… | Replacement is worth considering when… |
|---|---|
| Only the spring itself has failed and the shaft, drums, and bearing plate are undamaged | The shaft, bearing plate, or drums are bent or damaged along with the spring |
| The door's cables and other hardware are otherwise in good condition | The spring set is significantly mismatched to the door's current weight after other changes, such as added insulation or new panels |
Cost factors
What affects the price
Prices aren't published because they depend on your door, the parts involved and the access to the work. These are the things that move the cost — ask for the price before any work starts.
- Spring type
- Torsion springs mounted on a shaft above the door and extension springs alongside the upper tracks use different parts and setup.
- Number of springs
- Heavier doors often use two torsion springs rather than one, which affects the parts needed.
- Door weight and cycle life
- A heavier door, or one that opens frequently, needs a spring rated for more cycles.
- Condition of related hardware
- Worn cables, drums, or a bent shaft found during inspection may need attention at the same time.
Safety first
- Never attempt to loosen, wind, cut, or remove a torsion or extension spring yourself — the stored tension can cause serious injury or death.
- Do not disconnect the opener or try to manually lift a door with a broken spring; the door can be significantly heavier than expected.
- Keep children, pets, and vehicles away from a garage with a known spring problem until it has been inspected.
Safe things to check first
- From a safe distance, look at the torsion spring above the door for a visible gap in the coil or a section that looks separated — do not touch it.
- Note whether you heard a loud bang from the garage, which often means a spring has broken, and avoid using the door until it's inspected.
Answers
Frequently asked questions
How do I know if my spring is broken?
A loud bang from the garage, a door that suddenly feels much heavier, or a visible gap in the coil above the door are common signs of a broken spring.
Why did my spring break?
Springs are rated for a certain number of open-close cycles and wear out over time; temperature swings, lack of lubrication, and a mismatched spring can shorten that lifespan.
Can I replace a garage door spring myself?
This isn't a safe do-it-yourself repair. Torsion and extension springs store enough energy to cause serious injury, and setting the correct tension requires specific tools and training.
How long does a spring repair take?
A spring replacement is usually completed in a single visit once the correct spring and hardware are on hand.
Related
Related services
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Sources
- TDS #190 — Factors Affecting Spring Cycle Life — Door & Access Systems Manufacturers Association (DASMA) (accessed 2026-09-24)
- Government and Industry Move To Reduce Garage Door Opener Child-Entrapment Deaths — U.S. Consumer Product Safety Commission (accessed 2026-09-24)