2026-09-04 7 min read
Your garage door relies on one of two spring systems to lift that heavy panel safely every single time. Understanding which type you have in Voluntown, and how each one works, keeps you from making expensive mistakes when something breaks. We're going to walk through the real differences between torsion and extension springs so you know exactly what you're dealing with.
Garage door springs counterbalance the weight of your door, which typically runs 300 to 500 pounds. Without functioning springs, your opener motor would burn out in weeks trying to lift dead weight alone. The springs store energy and release it smoothly as the door moves up and down. When a spring fails, your door becomes a liability.
Springs last roughly 7 to 9 years under normal use. Some last longer if your door sits mostly closed in mild climates. Others wear faster in freeze-thaw regions. The moment you hear a loud bang from your garage, suspect a snapped spring. Don't ignore it.
Torsion springs wind tightly around a metal shaft mounted above your garage door opening. As the door closes, the spring tightens. As it opens, the spring unwinds, releasing stored energy upward. This design keeps tension constant throughout the door's travel.
Torsion springs are the industry standard for residential doors today. They're safer, more reliable, and last longer than extension springs. Most new installations in Voluntown and surrounding towns use torsion systems. If your home was built in the last 20 years, you almost certainly have torsion springs.
The trade-off? They cost slightly more to replace. A torsion spring replacement typically runs higher than an extension spring job. But the durability and safety record justify the expense. We've covered the cost factors in detail before; read our full breakdown of what affects garage door springs cost in Voluntown to understand pricing better.
The shaft sits centered above the door. Two springs flank the shaft, one on each side. As the door lowers, friction between the shaft and springs creates rotational force that supports the weight. The springs don't stretch; they twist. This twisting motion is where the name comes from.
Because torsion springs work in balance, replacing just one is usually not recommended. When one spring wears out, the other isn't far behind. Both should be replaced together to avoid uneven door movement and premature wear on the remaining spring.
Extension springs run vertically along the sides of your door frame, above the horizontal tracks. When the door closes, these springs stretch and lengthen. When it opens, they contract and pull the door upward.
Older homes in Voluntown, particularly those built before 2000, often have extension springs. They're cheaper upfront and take less space to install. But they wear faster and require safety cables to contain them if they snap.
**Need garage door springs in Voluntown today?** Call (860) 530-2405. we cover same-day service across the area.
Extension springs need more frequent maintenance. They rely on pulleys and brackets that can bend or wear. A snapped extension spring creates a serious hazard: the spring whips around with dangerous force. This is why safety cables run through the center of each spring. The cables catch a broken spring before it damages property or injures someone.
Walk into your garage and look above the door. If you see two springs wound tightly around a horizontal shaft in the middle, you have torsion springs. If you see springs running up the sides, near the tracks, those are extension springs.
Not sure? Don't guess. Call us or check our spring types and function guide for photos and more detail. Misidentifying your spring type can lead to ordering the wrong part or attempting a repair that makes the problem worse.
Both spring types require professional replacement. The tension stored in a compressed or stretched spring is enormous. Improper handling causes serious injury. Springs can snap unexpectedly during removal, sending metal flying at high speed.
We recommend professional service whenever you suspect a spring failure. Get a same-day estimate from our team by calling (860) 530-2405. If your door is completely stuck, don't force it. A stuck door often signals a spring problem that needs same-day attention before you damage the opener or track system.
You can maintain springs by keeping the garage clean and dry, lubricating the shaft once yearly, and watching for rust spots. But replacement itself is not a homeowner job. We've also written about garage door spring replacement timing and when you actually need it if you want more guidance on maintenance timing.
What's the main difference between torsion and extension springs? Torsion springs twist around a shaft above the door; extension springs stretch along the sides. Torsion is safer, lasts longer, and is the modern standard for residential doors.
How long do garage door springs usually last? Most springs last 7 to 9 years with normal use, roughly 10,000 open-close cycles. Climate, humidity, and usage frequency affect lifespan.
Can I replace just one spring? No. Both springs wear together. Replacing one leaves an unmatched pair, causing uneven door movement and premature failure of the remaining spring.
How much does a spring replacement cost? Torsion spring replacement typically ranges from $200 to $400 per spring, depending on door size and spring quality. Extension springs cost less but wear faster.
Is a snapped spring dangerous? Yes. An extension spring can whip around violently if the safety cable fails. Even torsion springs store dangerous tension. Never attempt DIY replacement.