2026-07-03 7 min read
Here's what most homeowners don't realize about garage door springs: not all springs are created equal, and installing the wrong type can damage your door, opener, and wallet. Your garage door likely uses either torsion springs or extension springs, and understanding the difference could save you hundreds on repairs. Dexter Garage Doors has replaced thousands of both types, and the confusion between them is real.
Torsion springs sit horizontally above your garage door opening on a metal shaft. They work by twisting (torsion) to store and release energy as your door opens and closes. These springs are wound tightly and under extreme tension, which is why they're incredibly effective at balancing a heavy door.
A typical residential torsion spring lasts 7 to 9 years with normal use. That lifespan assumes about 10,000 to 15,000 cycles (open and close), which works out to roughly three to five door operations per day. Most Dexter homes with single-car garages fall into this range, though families working from home or running errands frequently might cycle through faster.
The biggest advantage of torsion springs is their durability and smooth operation. Your door glides up and down with minimal noise or jerking. They also take up less space since they're mounted above the opening rather than along the sides. The trade-off is cost: torsion springs are pricier to install than extension springs, and replacement requires professional expertise because of the pre-tension involved.
Extension springs run horizontally along both sides of your garage door opening, stretching and contracting as the door moves. They're typically paired (one on each side) and work by extending under load, then pulling back to their resting length.
Extension springs are generally less expensive upfront and easier to replace than torsion springs. They're common in older homes and lighter-duty applications. However, they don't last quite as long as torsion springs, averaging 5 to 7 years under normal conditions. They also tend to create more noise and require safety cables to prevent injury if one snaps.
If you've heard a loud bang or noticed your door suddenly heavy or lopsided, you likely have a snapped extension spring. This is a common issue in the Dexter area, especially during temperature swings when metal contracts and expands. We've covered this scenario in detail in our guide to snapped garage door springs in Dexter and same-day repair options.
Step into your garage and look up. If you see a single metal shaft running horizontally above the door with springs wound around it, you have torsion springs. If you see two springs running along the left and right sides of the opening, you have extension springs. Don't touch them or try to diagnose the problem yourself. Springs under tension can cause serious injury.
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Torsion spring replacement typically costs more than extension spring replacement because of the complexity and tools required. An extension spring replacement might run $150 to $300 per spring, while torsion springs often cost $200 to $400 per spring. Labor varies, but professional installation is non-negotiable for both types.
When you request an estimate, ask the technician about the spring's cycle rating and expected lifespan. Not all springs are rated equally. A higher-cycle spring (rated for 20,000 or 25,000 cycles) costs more upfront but will last longer if you use your garage door heavily.
Our team at Dexter Garage Doors always provides a detailed estimate before any work begins, so you know the cost upfront. We also explain whether your door would benefit from upgrading to a longer-lasting spring or staying with a standard replacement. For more on repair versus replacement decisions, read our guide to when you should repair or replace your garage door springs.
Regular lubrication extends spring life by reducing friction and corrosion. Use a silicone-based garage door lubricant (not WD-40) and apply it every six months. Listen for squeaking or grinding sounds, which often signal a spring under stress.
If you notice your door is unbalanced, slow to open, or requires more effort than usual, have it inspected immediately. A weakening spring can put extra strain on your opener and door panels. Don't wait for a snap. Schedule a free quote today and let us assess your springs before they fail.
How do I know if my garage door spring is about to fail? Listen for loud squeaking or creaking sounds during operation. Your door may move slower, hang unevenly, or feel heavier when opening manually. A qualified technician can inspect the spring's condition and predict failure before it happens.
Can I replace one extension spring if only one snapped? Technically yes, but we recommend replacing both at the same time. The second spring is likely near the end of its life if the first failed. Replacing both ensures balanced operation and prevents another failure weeks later.
Are torsion springs safer than extension springs? Both are dangerous if mishandled. Torsion springs require professional installation due to pre-tension. Extension springs need safety cables. Either way, hire a professional. DIY spring work causes serious injuries every year.
How much does a garage door spring replacement cost in Dexter? Extension springs typically run $150 to $300 each; torsion springs cost $200 to $400 each, plus labor. Total cost usually falls between $300 and $600. Request an estimate from Dexter Garage Doors for an exact quote based on your door's needs.
Can I lubricate my springs myself? Yes, use silicone-based garage door lubricant every six months on the springs and hinges. Never attempt to adjust tension or pre-wind torsion springs yourself. Apply lubricant while the door is fully closed and at rest.