2026-08-21 7 min read
Here's what most homeowners don't realize about garage door springs: not all springs work the same way. Your garage door probably uses one of two types, torsion or extension, and each behaves differently when it fails. Understanding which type you have can save you money, prevent injury, and help you get the right repair faster when something goes wrong.
Your garage door springs do one job: counterbalance the weight of the door so it opens and closes smoothly. A typical residential door weighs 300 to 500 pounds. Without springs, your opener would burn out in weeks trying to lift that load. The two designs that accomplish this are torsion springs and extension springs.
Torsion springs mount horizontally above your garage door opening, along a shaft that runs the full width. When the door closes, these springs wind up tightly, storing energy. When you open the door, that stored tension releases and helps lift the door. Most modern homes in Boone, especially new construction, use torsion springs because they're more durable, safer, and last longer.
Extension springs hang vertically on both sides of the door tracks. They stretch and compress as the door moves up and down. Older homes and some budget installations use extension springs. They're less expensive upfront but require safety cables to catch them if they snap.
The type of spring in your system affects repair cost, replacement timeline, and safety. Torsion springs typically last 7 to 9 years with normal use. Extension springs often fail sooner, sometimes within 5 to 7 years. If you have extension springs, you're more likely to experience a snapped spring situation that leaves your door stuck or dropping suddenly.
When a torsion spring fails, the door usually stays in place. When an extension spring snaps, the door can drop quickly, which is dangerous. That's why extension springs must have heavy-duty safety cables running through them. If those cables break too, the door becomes a falling hazard.
Cost also differs between types. Extension spring replacement runs cheaper initially, perhaps $150 to $250 per spring. Torsion spring replacement costs more, typically $200 to $400 per spring, but you're buying peace of mind and longevity. Many homeowners find that torsion is the better value over time.
**Need garage door springs in Boone today?** Call (828) 604-9608. we cover same-day service across the area.
Walk into your garage and look above the closed door. If you see a horizontal shaft with a large coiled spring wrapped around it, you have a torsion system. The spring sits centered above the door, and the shaft extends the full width of the opening.
If you see two springs hanging on either side of the door tracks, one spring on each side, you have extension springs. They're vertical and they stretch when the door is closed.
Still unsure? Call us at (828) 604-9608 or check our services page for spring repair details. We'll confirm your system type during a free estimate.
A snapped spring means your door won't open. You might hear a loud bang or pop from the garage. The door becomes extremely heavy and dangerous to lift manually. Your automatic opener can't do the job alone. This is why you should never ignore signs of spring trouble, like a door that feels heavier than normal or moves unevenly.
If you've been putting off spring maintenance, read our earlier post on why garage door springs fail faster in Boone. Mountain weather and temperature swings accelerate wear.
When you need spring repair in Boone, don't guess. Call a professional who knows the difference and can replace the right type safely. A technician will assess your current springs, recommend upgrade options if needed, and handle the repair or replacement based on your budget and timeline.
Extension springs can be upgraded to torsion springs during replacement. Many homeowners choose this option because torsion springs perform better long-term. Extension systems tend to wear cables and pulleys faster too, adding hidden costs over time.
Spring problems escalate fast. A weakening spring today becomes a broken spring tomorrow. Once it snaps, you're stuck with emergency repair costs and no garage access. That's why scheduling a free spring estimate now makes sense if your door is over 5 years old or feeling sluggish.
We've served Boone and the surrounding High Country for years with honest pricing and upfront timelines. Whether you need same-day emergency service or a planned replacement, Boone Garage Doors is ready to help.
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How long do garage door springs last? Torsion springs typically last 7 to 9 years under normal use, meaning roughly 10,000 cycles. Extension springs often fail sooner, within 5 to 7 years. Harsh weather, frequent opening, or poor maintenance shortens the lifespan.
Can I replace just one spring? Both springs should be replaced together, even if only one has failed. Springs wear at similar rates, and replacing one leaves an imbalanced load on the remaining spring, causing it to fail soon after. Replacing both ensures even performance and safer operation.
Is torsion or extension spring replacement more expensive? Torsion spring replacement costs $200 to $400 per spring. Extension springs cost $150 to $250 per spring. However, torsion systems last longer and require fewer repairs overall, making them the better long-term investment for most homeowners.
What's that loud bang when a spring breaks? That's the sound of stored tension releasing suddenly when the spring snaps. The noise is loud and alarming, but it's not dangerous as long as you stay clear of the door. It signals immediate need for professional repair.
Can I replace springs myself? No. Spring replacement is extremely dangerous. Springs are under immense tension and can cause serious injury or death if mishandled. Always hire a licensed professional who has the right tools and training.