Garage Door Springs in Sims, NC: Torsion vs Extension Explained
2026-06-03 7 min read A2Z Garage Doors
Your garage door springs are under roughly 10,000 pounds of tension right now. If you don't know whether yours are torsion or extension springs, or what happens when one snaps, this post cuts through the confusion. I've responded to enough emergency calls in Sims to tell you: spring failure isn't a "wait until Monday" situation.
What Are Garage Door Springs?
Springs counterbalance the weight of your door so the opener doesn't burn out after two years. Without them, you'd need a small car engine to lift a standard two-car door. They sit either above the door (torsion springs) or along the tracks (extension springs), and they're engineered to cycle roughly 10,000 times before wearing out. That's about 7 to 9 years of typical use.
Most homes in Sims and surrounding areas use one of two types. Understanding which one you have matters because replacement costs, safety risks, and repair timelines differ significantly.
Torsion Springs: The Standard Choice
Torsion springs are mounted horizontally above your garage door opening. When the door closes, they wind up (tighten) and store energy. When you open it, that stored energy releases and helps lift the door.
Here's why I recommend torsion springs: they're safer, last longer, and distribute load more evenly. A snapped torsion spring still keeps your door from crashing down because the two springs usually work together. If one fails, the other can hold the load temporarily. You'll hear a loud bang, but the door won't drop.
Extension springs fail differently. When one breaks, the door can come down hard on someone or something below it. I've seen garage doors close unexpectedly on cars, bicycles, and worse. That's a safety issue that keeps me up at night.
Torsion springs typically cost more upfront (usually $200 to $400 per spring installed), but they're the smarter long-term investment. They also work better with modern garage door openers, which we cover in detail in our garage door openers guide for Sims homeowners.
Extension Springs: Budget-Friendly But Riskier
Extension springs run alongside your door tracks and stretch as the door closes. They're cheaper to buy initially but come with real safety concerns.
When an extension spring snaps, the door loses support on that side immediately. The other spring can't compensate. Your door may jam, tilt, or fall. Extension springs also require safety cables to prevent the spring itself from whipping across your garage if it breaks. That cable can cause serious injury.
If your home has extension springs, I strongly recommend upgrading to torsion springs at your next replacement cycle. Yes, the upfront cost is higher, but the safety and durability gains justify it.
**Need garage door springs in Sims today?** Call 1-252-765-5069. we cover same-day service across the area.
Signs Your Springs Need Replacement
A snapped spring is unmistakable: you'll hear a loud metallic crack or bang, and your door won't open or will open very slowly. But springs fail gradually too.
Listen for these warning signs:
- The door feels heavier than usual when opening, It takes longer for the opener to lift the door, The door moves unevenly or tilts to one side, You see gaps between coils on the spring itself, Rust or corrosion is visible on the spring
If you notice any of these, call for an inspection before the spring fully fails. A same-day estimate can save you from being stuck at home or locked out of your garage. Garage Door Sims offers free diagnostics so you know exactly what you're paying for.
What to Expect: Cost and Timeline
Spring replacement typically runs $300 to $800 installed, depending on whether you need one or both springs replaced and whether you're upgrading from extension to torsion. Labor usually takes 1 to 2 hours. Our team handles same-day appointments across Sims and the surrounding region when we have availability.
For a detailed breakdown of how labor and parts costs factor into your decision, see our labor vs parts breakdown guide.
I also recommend pairing spring replacement with routine maintenance to catch other issues. Worn hinges, rollers, or cables often show up during a spring job, and fixing them then is cheaper than an emergency call later. Check out our maintenance checklist for Sims homeowners for what else to monitor.
When to Call a Professional
Never attempt to replace garage door springs yourself. These springs are under extreme tension. If you slip or the tool slips, the spring can snap with enough force to cause serious injury or death. I've seen YouTube videos encouraging DIY spring replacement, and they terrify me.
Our technicians at Garage Door Sims have the tools, knowledge, and insurance to do this safely. Schedule a free quote today or call 1-252-765-5069 for a same-day estimate.
Frequently Asked Questions
How long do garage door springs last? Most springs are rated for 7 to 9 years of normal use, or roughly 10,000 cycles. Springs in climates with high humidity (like coastal NC) may wear faster due to rust.
Can I use just one spring if the other breaks? No. A single spring cannot safely support your door's full weight. Both springs must be replaced together to maintain balance and prevent the door from tilting or jamming.
What's the difference in cost between torsion and extension springs? Torsion springs cost $200 to $400 each installed. Extension springs cost $100 to $150 each installed. However, torsion springs last longer and are safer, making them better value over time.
Why did my spring break without warning? Springs weaken gradually from use and weather exposure. Rust, extreme temperature swings, or a sudden shock can cause sudden failure even if the spring looked fine hours before.
Do I need to replace both springs at the same time? Yes. Even if only one spring has snapped, both have the same age and wear patterns. Replacing only one leaves the other likely to fail within weeks or months.