Snapped Garage Door Springs in Londonderry: Repair Cost & What to Expect
2026-06-27 5 min read
Here's what most homeowners in Londonderry don't realize about garage door springs: they're not a "someday" repair. When a torsion or extension spring fails, your entire door becomes a paperweight. You can't open it manually without risking serious injury. That's why understanding the cost and timeline matters before disaster strikes.
A snapped spring replacement runs between $250 and $400 in our area, depending on whether you have one or two springs and which type your door uses. If you need same-day service, expect to call early. We handle emergency calls here at Londonderry Garage Doors, but the sooner you reach out, the sooner we roll the truck. See our guide on garage door maintenance in londonderry: skip this and you.
What Causes Springs to Snap
Garage door springs are under immense tension. A typical torsion spring above your door carries the full weight of your door (usually 300 to 400 pounds) and cycles thousands of times per year. That's why they fail.
The main culprits are age, lack of lubrication, and temperature swings. Springs last roughly 7 to 9 years with normal use. In New England winters, the temperature changes alone stress the metal. A spring that might last nine years in a warmer climate could fail at seven here in Londonderry. Read about repair cost breakdown: making smart decisions.
Rust and corrosion accelerate failure too. If you haven't lubricated your springs or tracks in a while, you're asking for trouble. Extension springs (the type on the sides of your door) snap more suddenly than torsion springs, which can fail more gradually.
The Two Spring Types
Torsion springs sit above the door on a horizontal rod. They twist to lower and raise the door. One snapped torsion spring often means the other will follow within months. Extension springs hang from cables on either side and stretch to counterbalance the door weight.
Most modern garage doors use torsion springs because they're safer and more durable. But both types require professional replacement. Trying to replace a spring yourself is genuinely dangerous; the tension can cause serious injury.
**Need garage door springs in Londonderry today?** Call (978) 961-5968. we cover same-day service across the area.
The Real Cost Breakdown
Your repair estimate includes the spring itself, labor, and a service call fee. Spring replacement is not a quick fix. Our technicians need to safely release tension, remove the old spring, install the new one, and test the door balance multiple times.
If both springs have failed or need replacement, the cost doubles. Some homeowners ask if they can replace just one. Honestly, if one torsion spring has snapped, the second one is living on borrowed time. We often recommend replacing both at once to avoid a callback in three months.
You might also need new cables or pulleys if they've worn alongside the springs. A full estimate costs nothing, and we'll give you honest numbers upfront. No surprise charges when we finish the job.
Why DIY Isn't an Option
A compressed torsion spring holds roughly 200 pounds of force per inch. That's like having two people pushing down on you. When the spring breaks, that energy releases violently. Fingers, hands, and faces have been seriously injured by people attempting spring replacement at home.
Professional tools and safety equipment aren't negotiable here. We use proper winding bars, safety cables, and techniques to keep everyone safe. The cost of a professional repair is far less than an emergency room visit or permanent injury.
If you'd like to understand more about routine care that prevents early spring failure, check out our garage door maintenance guide for Londonderry homeowners. Small steps now prevent expensive emergencies later.
When to Call vs. When to Wait
If your door won't open or close, call today. A snapped spring means zero function. Don't try to force the opener; you'll burn out the motor and add $300 to your bill.
If you hear a loud bang and the door suddenly feels heavy, that's a spring failure. Call us for an estimate. If you notice the door opening slowly or unevenly, a spring may be weakening. That's less urgent, but still worth scheduling within the week.
For same-day or next-day service in Londonderry and nearby towns, contact us now to get a same-day estimate. We'll confirm availability and give you a timeframe. Many spring replacements happen the same day you call.
You can also explore our full garage door repair services to understand what else we handle while we're out at your home.
The Takeaway
A snapped spring is a real problem, but it's a solvable one. Costs are reasonable when you use a licensed professional, and the repair is fast. The danger and potential for additional damage make DIY replacement a bad bet.
Call Londonderry Garage Doors at (978) 961-5968 if a spring fails. We'll give you honest pricing, show up on time, and have your door working again. That's the promise we make to every customer in town.
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Frequently Asked Questions
How long does a spring replacement take? Most spring replacements take 1 to 2 hours, including testing and adjustments. If cables or pulleys need replacement too, add 30 minutes. We call with a time window before arriving at your home.
Can I replace just one spring if the other is still working? Technically yes, but not recommended. Matching torsion springs are designed to fail around the same time. Replacing both at once saves you a second service call in a few months and costs less overall.
Is a snapped spring covered by homeowners insurance? Rarely. Most homeowners insurance policies exclude normal wear and tear on garage doors. Check your policy, but plan to pay out of pocket for this repair.
How do I know if my springs are about to fail? Listen for creaking or squeaking. Watch for the door opening unevenly or slowly. If the door feels heavier than usual, springs are weakening. Schedule an inspection if you notice these signs.
What's the difference between a torsion and extension spring? Torsion springs sit above the door and twist. Extension springs hang on the sides and stretch. Torsion springs are safer and last longer, but both require professional replacement when they fail.