2026-09-02 7 min read
In our years serving Boiling Springs, we've seen this problem again and again: homeowners don't know which type of spring their garage door uses, so they can't plan for repair cost or understand why a snapped spring happens. The answer matters because torsion and extension springs work differently, fail differently, and carry different price tags. Knowing which one you have takes 30 seconds and saves confusion down the road.
Your garage door spring type depends on how it's mounted and how it stores energy.
Torsion springs sit horizontally above your garage door opening. They twist (hence the name) to lift the heavy door. One or two springs handle the job, and they're wound tight under serious tension. When a torsion spring snaps, the door won't open at all.
Extension springs hang vertically on each side of the door. They stretch and contract as the door moves up and down. Most residential doors have one on each side. A snapped extension spring usually means one side fails, and the door tilts or binds.
Which does your door have? Look above the door opening. Horizontal spring = torsion. Vertical springs running along the cable tracks = extension.
Torsion springs typically cost more upfront. A single torsion spring replacement in Boiling Springs runs $150 to $300 per spring, depending on size and quality. Extension springs usually cost $75 to $150 each. But here's the honest part: torsion springs last 7 to 9 years on average, while extension springs often need replacement sooner, around 5 to 7 years.
The math matters. A torsion setup costs more per replacement but requires fewer replacements over a decade. If you're planning to stay in your home, torsion is better long term. If you're renting or planning to move, extension springs may look cheaper now.
Quality matters too. We've seen cheap springs fail in under three years. Mid-range springs (which we install) hit that 7 to 9 year window reliably. Budget springs? They're penny-wise and pound-foolish.
Learn more about when to replace springs and what it really costs in our detailed pricing guide.
**Need garage door springs in Boiling Springs today?** Call (980) 391-6774. we cover same-day service across the area.
Torsion springs fail from stress. They're compressed under enormous load, and repeated cycles (open, close, open, close) wear the metal. By year 7 or 8, fatigue wins. You'll hear a loud bang when it goes. The door won't budge.
Extension springs snap from the same wear, but also from rust and poor maintenance. If the cable breaks at the same time as the spring, the door can drop hard. Rust accelerates failure, especially in our Carolina humidity.
Both types can fail early if your door is unusually heavy (solid wood doors, oversized doors) or if the springs were undersized to begin with. Some builders cut corners and install springs rated for a lighter door.
If your spring snapped suddenly, here's what you need to do right now.
When you call Garage Door Boiling Springs for an estimate, we ask three things: door weight, spring type, and how long you've owned the door. That tells us if you need one spring or both, and whether rust is a factor.
We don't charge for the estimate. We believe you should know the cost before committing. A typical same-day spring replacement costs $200 to $400 total (parts and labor), though oversized doors or commercial applications run higher.
Nearby in Gastonia and Shelby, we see similar pricing, though rural service calls add a small mileage fee.
See our full service menu and schedule a free quote to get exact pricing for your door.
Springs are under 200+ pounds of tension. A mistake means the door crashes down, or the spring coil wraps around your hand. We've seen both. Hospital bills and property damage cost way more than hiring a pro. If you're tempted to save $100, consider that one mistake costs $2,000 in emergency room fees.
Read our honest take on DIY vs. calling a professional for the full story.
If one spring is at year 8, the other one is at year 8 too. They fail in pairs because they're the same age and under the same stress. Replacing just one leaves the other ready to snap next month.
We recommend replacing both at the same time. Yes, it costs more upfront. But one truck visit beats two emergency calls. One labor charge beats two. You save money overall and avoid being stranded with a broken door twice.
The best time to act is now. Before a spring snaps and traps your car inside or leaves your home unsecured at night.
---
How do I know if my spring is torsion or extension? Look above the door opening. A horizontal spring centered above the door = torsion. Two vertical springs running along the cable tracks on each side = extension. Torsion is more common in newer homes.
Can I replace just one spring? Technically yes, but we don't recommend it. Both springs are the same age and under equal stress. Replacing one leaves the other ready to fail within weeks or months, costing you another service call.
How long does a spring replacement take? About one hour for a single spring, two hours for both. We schedule same-day appointments most days. Call (980) 391-6774 to check availability.
What's the difference between a $100 spring and a $200 spring? Material quality and cycle rating. Cheap springs are thinner, rust faster, and fail sooner. We install mid-range springs rated for 10,000+ cycles and backed by warranty.
Do I need to replace the cable too? Only if it's frayed, kinked, or broken. A healthy cable lasts 15+ years. We inspect it during every service and tell you if replacement is needed.