2026-07-13 7 min read
A customer called last Tuesday with her garage door stuck halfway open. She'd heard a loud bang from the garage that morning but assumed it was something minor. When I arrived, the torsion spring above her door was completely severed. She was lucky nothing fell on her car. That single moment taught her what most homeowners in Bow learn too late: garage door springs don't fail quietly, and ignoring the warning signs costs far more than addressing them early.
Your garage door weighs between 300 and 500 pounds. Without springs, that weight would be impossible to lift by hand or opener. Two types of springs handle this load: torsion springs mounted horizontally above the door, and extension springs running along the sides of the opening. See our guide on smart garage door technology in bow, nh: what you need to know.
Torsion springs are the heavy hitters. They twist as the door moves, storing and releasing energy with mechanical precision. Extension springs stretch and contract. Both types are under constant tension. Both types eventually wear out.
Springs typically last 7 to 9 years with normal use, though heavy daily use shortens that window. They complete roughly 10,000 to 15,000 cycles before failure. If you open your door four times daily, you're looking at 1,460 cycles per year. That math tells you why neglect leads to disaster. Read about garage door safety in bow, nh: what every homeowner needs to know.
Listen for a loud bang or crack coming from the garage. That sound often means a snapped spring. You might also notice:
- Your door opens unevenly, one side higher than the other, The door feels heavier than usual when opening manually, Visible gaps or rust on the spring itself, The door closes faster than it should or won't stay open
If you see any of these, stop using the door immediately. A broken spring can cause the door to fall suddenly, risking injury and damage to vehicles underneath.
As I covered in our guide on garage door safety features in Bow, modern openers include auto-reverse mechanisms to catch a falling door. But that protection only works if your opener is functioning correctly. Don't rely on it as a substitute for spring replacement.
I've seen homeowners attempt DIY spring replacement. I've also seen emergency room visits result. Springs carry lethal tension. When they snap, the metal whips with force that can cause serious injury or death.
Professional technicians use specialized tools to safely unwind tension, replace the spring, and test the system. The cost of hiring someone like us at Garage Door Bow beats the cost of a hospital bill or property damage by an enormous margin.
**Need garage door springs in Bow today?** Call (978) 690-4680. We cover same-day service across the area.
Spring replacement typically ranges from $200 to $400 per spring, depending on the type and quality. If both springs need replacement (recommended, since they wear together), budget $400 to $800. This estimate includes labor, the new spring, and testing.
Why replace both at once? If one spring fails, the other is likely close behind. Replacing just one leaves you vulnerable to a second failure weeks later. That second call costs another service visit.
Emergency or same-day service may carry an additional fee during evenings or weekends, though many local Bow families find it worthwhile to avoid being locked out of their garage when they need it most.
For a detailed breakdown of what you'll actually pay, read our article on garage door repair costs in Bow to avoid surprise bills. We walk through how pricing works so there are no shock invoices.
Regular inspection catches problems before springs snap. During your twice-yearly maintenance checks, look for rust, visible gaps, or uneven door movement. Lubrication with a silicone-based spray keeps springs operating smoothly and reduces friction wear.
If you haven't had your garage door inspected recently, now is the time. We offer free estimates and can assess whether your springs are approaching the end of their lifespan. Schedule a free quote today to get peace of mind.
Spring failure is one of the most common reasons homeowners call for emergency repair. Yet it's also one of the most preventable with routine care. Don't wait for a bang from the garage.
Call Garage Door Bow at (978) 690-4680 for a same-day estimate, or visit our services page to learn more about spring replacement options. Nearby areas including Concord and Durham rely on our expertise. We're ready to help Bow residents get their doors working safely again.
How do I know if my garage door spring is broken? Listen for a loud snapping noise. Your door may fail to open, hang unevenly, or feel much heavier. Never attempt to operate a door with a broken spring. Call a professional immediately for safety.
Can I replace a garage door spring myself? Springs carry extreme tension and can cause serious injury or death if mishandled. Professional replacement with specialized tools is the only safe option. DIY attempts risk severe harm.
How long does spring replacement take? Most replacements take one to two hours, including testing and adjustments. Emergency calls during evenings or weekends may take slightly longer depending on our current workload.
Do both springs need replacement at the same time? Yes. Springs wear together. Replacing only one leaves the other at high risk of failure shortly after. Replacing both prevents a second emergency service call.
What's the difference between torsion and extension springs? Torsion springs twist horizontally above the door and are stronger, lasting longer. Extension springs stretch along the door's sides and are less durable. Most modern residential doors use torsion springs.