Best Garage Door Parts

Replacing only the broken spring may seem cheaper, but replacing the pair is usually safer, smoother, and more cost-effective.

When one garage door torsion spring breaks, many homeowners wonder whether they can replace only the failed spring. In most two-spring systems, the better choice is to replace both torsion springs at the same time. This helps restore even tension, protects the opener, and reduces the chance of another spring failure shortly after the first repair.

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How Springs Work Replacing One Spring Replacing Both Springs Spring Life Find Your Match Need Help?
01

How Torsion Springs Work Together

Garage door torsion springs are tightly wound steel coils that store mechanical energy. When the door opens and closes, the springs help counterbalance the weight of the door so it can move smoothly and safely.

In a two-spring setup, both springs share the lifting load every time the door moves. Because they normally work together, they also age together.

Shared Load

Both springs lift the door

Each spring contributes to the total lifting force needed to balance the door.

Same Usage

Both springs cycle together

If one spring has reached the end of its life, the other has usually gone through the same number of cycles.

Balance

Matched springs matter

A properly matched pair helps the door open evenly and reduces unnecessary strain on the system.

02

What Can Happen If You Replace Only One Spring

Replacing only the broken spring can create a mismatch between a new spring and an older, worn spring. Even if the door operates at first, the system may no longer be balanced correctly.

Uneven tension

The new spring may be stronger than the older spring. This can cause the door to lift unevenly, tilt, bind, or feel rough during operation.

More strain on the opener

A garage door opener is designed to move a balanced door, not force an unbalanced one. Uneven spring tension can shorten opener life and increase the chance of mechanical problems.

The old spring may fail soon

If both springs were installed together, the remaining old spring is likely near the same wear level as the broken one.

Safety concerns

A weak or failing spring can cause sudden door movement, fast closing, or unstable operation that may damage property or create injury risk.

03

The Benefits of Replacing Both Springs Together

Replacing both torsion springs at the same time restores the system as a matched pair. This is usually the most practical choice for long-term reliability and smoother door movement.

Smoother operation

A matched spring pair helps the door open and close evenly without unnecessary twisting, binding, or jerky movement.

Improved safety

Properly balanced springs reduce the risk of sudden drops, uneven lifting, and unstable door movement.

Lower long-term cost

Replacing both springs together can help avoid a second repair, extra downtime, and another service call soon after the first spring breaks.

Peace of mind

You know both springs are fresh, matched, and ready to work together instead of relying on one new spring and one worn spring.

Best practice: If your garage door uses two torsion springs, replace both springs when one breaks unless a qualified technician has confirmed there is a specific reason not to.
04

How Long Garage Door Springs Usually Last

Garage door springs wear out from repeated use. One complete cycle means the door opens once and closes once. Over time, the steel fatigues until the spring can no longer safely support the door.

Standard Range

10,000–20,000 cycles

Many residential torsion springs fall within this general cycle-life range.

Average Use

About 7–10 years

Actual lifespan depends on how often the door is used and the spring design.

High-Cycle Option

Longer service life

High-cycle torsion springs can last longer when properly matched to the door.

Simple rule: If one spring in a matching pair has already broken, the second spring has usually gone through the same amount of work and may be close to failure.
05

How to Find the Correct Replacement Springs

To order the correct torsion springs, you need accurate measurements from your existing spring system. The most important details usually include wire size, inside diameter, spring length, and wind direction.

Need measuring help? Use our torsion spring measurement guide — click here — to confirm the correct spring size before ordering.
  • Measure the old spring carefully before selecting a replacement.
  • Choose a matching spring pair when your garage door uses two torsion springs.
  • Confirm left-wind and right-wind direction before placing your order.
  • Consider high-cycle springs if you want longer service life.
Open Measurement Guide Shop Torsion Springs
06

Final Takeaway

Replacing both garage door torsion springs when one breaks is not just a convenience recommendation. It helps keep the door balanced, reduces stress on the opener and hardware, and lowers the chance of another spring failure soon after the repair.

For most two-spring garage doors, replacing the pair is the smarter, safer, and more reliable choice.

Need Help Choosing the Right Torsion Springs?

If you are not sure which torsion springs match your garage door, contact Best Garage Door Parts before placing your order. We can help you confirm the correct measurements and replacement spring pair.

Call: +1 386-569-8223

Final Safety Reminder

Garage door torsion springs are under extreme tension and can cause serious injury or property damage if handled incorrectly. Do not loosen, wind, unwind, remove, or repair torsion springs unless you are trained and qualified to do so. If you are unsure, contact a professional garage door technician.