Garage Door Spring Types in Londonderry: Torsion vs Extension Explained
2026-09-08 7 min read
A snapped garage door spring is one of the most common failures homeowners face, but not all springs are created equal. The two main types.torsion and extension springs.work differently, fail differently, and cost differently to replace. Understanding which system your door uses helps you make smarter repair decisions and avoid unnecessary downtime.
Torsion Springs: The Heavy Lifters
Torsion springs sit horizontally above your garage door opening. They twist and unwind to lift the door's full weight, using torque rather than direct pulling force. Most modern residential garage doors, especially heavier or wider ones, use torsion systems because they're more durable and balanced.
Here's why homeowners prefer them. A torsion spring lasts 7 to 9 years under normal use, handling thousands of open-close cycles. They distribute force evenly across the door, which means smoother operation and less strain on the opener. If one spring fails, you'll notice the door sitting lopsided or refusing to open at all. The repair cost typically runs higher than extension springs, but the longevity justifies the investment.
One critical safety note: never attempt to adjust or replace a torsion spring yourself. The tension stored in these springs can cause serious injury. When you need a torsion spring replaced in Londonderry, hire a trained professional who has the right tools and experience.
Extension Springs: The Budget Option
Extension springs run along the sides of your garage door opening, stretching and contracting to lift the door. They're most common on lighter, single-car doors or older installations. You'll see them mounted on pulleys with cable systems that guide the movement.
Extension springs are cheaper to install and replace, which appeals to homeowners watching their budget. However, they don't last as long as torsion systems, typically giving you 5 to Experienced Local Team. When one snaps, your door won't open, and the cable may hang loose or even damage the door panel. They also require more frequent maintenance because the pulleys and cables wear faster.
If your door has extension springs, consider upgrading to a torsion system during your next replacement cycle. The upfront cost difference is modest, and you'll save money on repairs over time. Learn more about whether repair or replacement makes sense for your specific situation.
**Need garage door springs in Londonderry today?** Call (978) 961-5968. we cover same-day service across the area.
How to Identify Your Spring Type
Walk into your garage and look above the door. Torsion springs form a tight coil running left to right. Extension springs stretch along the sides, parallel to the horizontal tracks. Don't open or close the door while you're inspecting, and don't touch the springs themselves.
If you're unsure, take a photo and call us. Identifying the spring type is the first step toward getting an accurate estimate. Different types also affect labor time and parts availability, which directly impacts your repair cost.
Spring Failure Signs and What to Do
A broken spring means your garage door won't operate normally. You might hear a loud bang or crack when the spring fails. The door may feel heavier than usual, or the opener will struggle to lift it. Never force the door open or closed if a spring is damaged. You risk further injury to the door or the opener.
For warning signs before a spring fails completely, check our guide to spring warning signs so you can catch problems early. Preventive maintenance catches wear before catastrophic failure happens.
Getting an Accurate Estimate
Spring replacement cost depends on the type, the number of springs, and local labor rates. Torsion springs cost more to replace than extension springs, but the job is more involved. Both labor and parts factor into your final bill. If you need a detailed breakdown of what drives your cost, our pricing guide explains the real numbers.
We offer free estimates for all spring repairs and replacements. Schedule a free quote today, and we'll tell you exactly what your door needs. Same-day service is available for emergency situations across Londonderry and surrounding towns.
Why Professional Installation Matters
Spring replacement isn't a weekend DIY project. The tension, the cable systems, and the precise calibration required all demand professional skill. A poorly installed spring can fail prematurely or create safety hazards. At Londonderry Garage Doors, we handle spring replacement with the same care we'd give our own homes. We test every repair before we leave and stand behind our work.
Your garage door spring type shapes how your door operates, how long it lasts, and how much maintenance it needs. Whether you have torsion or extension springs, treating them with respect and having a professional handle repairs keeps your family safe. Reach out to our team or browse our full service offerings to learn what we can do for you.
Frequently Asked Questions
How often should garage door springs be replaced? Torsion springs typically last 7 to 9 years; extension springs last 5 to 7 years. Replacement frequency depends on use and maintenance, but both types eventually wear out and need replacing.
Can I replace just one spring? If one spring has failed, we recommend replacing both at the same time. Springs age together, and replacing only one creates imbalance and premature failure of the remaining spring.
Why is torsion spring replacement more expensive than extension? Torsion springs require specialized tools, more precise installation, and higher expertise. The spring itself costs more, and labor time is longer due to calibration and safety protocols.
How do I know if a spring is about to break? Listen for squeaking, creaking, or grinding sounds during operation. The door may feel uneven when opening or closing. If you notice these signs, have a professional inspect the springs before they snap completely.
What happens if both springs break at once? Your garage door won't open at all. The opener cannot lift the full weight. Never try to force it open. Call for emergency service immediately. We offer same-day repairs across Londonderry and nearby areas.