Garage Door Springs in Newmarket, NH: Torsion vs. Extension Explained

2026-06-22

Your garage door springs are doing heavy lifting every single day. When one snaps, your door won't budge, and you're stuck. The two main types are torsion and extension springs. Torsion springs sit above your door and twist under tension. Extension springs run along the sides and stretch to help lift the weight. Understanding which one you have matters for repair cost and safety.

What Are Torsion Springs and How Do They Work?

Torsion springs mount horizontally above your garage door opening. They store energy by twisting rather than stretching. When you open the door, the spring unwinds and releases that stored energy, making the lift smooth and controlled. See our guide on battery backup systems: protecting your family.

Most residential garage doors in Newmarket use torsion springs because they're durable and smooth. They typically last 7 to 9 years with normal use, depending on how often you open and close the door. A standard two-car door might use one or two springs rated for 10,000 to 15,000 cycles.

The big advantage? Torsion springs give you a gentler, quieter operation. They also take up less space and distribute weight more evenly across the door frame. The downside is that replacement requires special tools and expertise. This is not a weekend DIY project for most homeowners. Read about snapped garage door springs in newmarket, nh: what it costs & how fast we fix it.

Extension Springs: The Other Common Type

Extension springs are simpler in design but do the same job from a different angle. They sit on either side of your door track and stretch as the door lowers. When you pull the door down, they extend and absorb that energy.

Extension springs are cheaper to replace than torsion springs, but they don't last quite as long. You'll typically get 5 to 7 years of reliable service. They're also noisier during operation because the stretching and contracting create more friction and vibration.

Safety cables run through extension springs for a reason. If a spring snaps, the cable catches the loose spring and prevents it from whipping across your garage. Without that cable, a snapped spring becomes a serious hazard. Check your cables during your routine garage door maintenance tune-up in Newmarket to make sure they're intact.

**Need garage door springs in Newmarket today?** Call 1-978-737-4728. we cover same-day service across the area.

Why Springs Fail and What It Costs

Springs wear out from repeated cycles. Metal fatigues over time, and eventually the material loses its ability to hold tension. A snapped spring usually happens without warning. One day your door works fine, the next day it won't open or close.

Cost depends on which type you have. Torsion spring replacement typically runs $200 to $400 per spring, plus labor. Extension springs cost less upfront, usually $100 to $200, but labor is similar. If you need emergency garage door service in Newmarket, expect a slight premium for same-day response.

Many homeowners ask whether they should replace one spring or both. If one spring has failed and the other is the same age, replacing both is smarter long term. You'll avoid a second emergency call in a few months when the partner spring fails. Get a free estimate by calling us at 1-978-737-4728 or scheduling a quote online.

Why Professional Installation Matters

Springs hold tremendous tension, often 200 to 300 pounds of force per spring. Improper installation can result in injury or damage to your door and frame. A miscalibrated spring also throws off your door's balance, causing strain on the opener motor and tracks.

Our team at Newmarket Garage Doors uses calibrated tools to measure tension correctly and install springs with precision. We also inspect your cables, rollers, and tracks while we're working. That attention to detail keeps your door running smoothly for years to come.

Learn more about our garage door spring services and what we inspect during a full replacement.

When to Replace vs. Repair

If one spring is cracked or has a visible break, replacement is your only option. A spring cannot be welded or patched safely. Some homeowners in nearby areas like Portsmouth have asked whether a temporary fix will work. It won't. A weakened spring will fail again under load, often suddenly.

If your door opens slowly, makes grinding noises, or feels unbalanced, a spring may be near failure. Don't wait for it to snap completely. A preventive replacement now saves you from being locked out of your garage at the worst possible time.

Conclusion

Garage door springs are critical safety components that deserve professional attention. Whether you have torsion or extension springs, knowing your spring type helps you understand repair costs and timeline. Most replacements can be completed same-day, getting your garage door back to work fast.

Contact Newmarket Garage Doors today. Call 1-978-737-4728 or get a same-day estimate for your spring replacement. We'll inspect your entire system and give you honest advice on what needs to be done.

Frequently Asked Questions

How do I know if my garage door spring is broken? Your door won't open or close smoothly, or it stops midway and feels heavy. You may hear a loud snap or bang. Never force the door if you suspect a broken spring. Call a professional immediately.

Can I replace a garage door spring myself? Springs are under extreme tension and can cause serious injury if mishandled. Professional installation with proper tools is the safe and correct approach for residential doors.

How long does spring replacement take? Most replacements take 1 to 2 hours once our technician arrives. Same-day service is available for calls before 4 p.m. in the Newmarket area.

What's the difference in cost between torsion and extension springs? Extension springs cost less upfront (around $100 to $200 per spring), while torsion springs run $200 to $400. Labor costs are similar for both types.

Should I replace both springs at the same time? Yes, if both springs are the same age and one has failed. Replacing both prevents a second failure shortly after and ensures balanced door operation.

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