2026-08-22 7 min read
There are two main types of garage door springs: torsion and extension. Torsion springs sit above your door and twist to lift it. Extension springs run along the sides and stretch as the door opens. Knowing which one you have matters because they fail differently, cost differently, and require different replacement approaches.
Let's cut through the confusion and talk about what actually separates these two systems so you can understand what's happening in your garage.
Torsion springs are the heavier hitters in the garage door world. They mount horizontally above your door opening on a steel shaft and rotate (torque) to store and release energy. This rotation is what lifts your 300 to 400 pound door with almost no effort from your opener.
Why torsion? They're more durable. A good torsion spring lasts 7 to 9 years with normal use, meaning roughly 10,000 to 15,000 cycles. They're also safer because the spring is enclosed and can't snap across your garage like a whip. Most modern homes in Marlborough built in the last 20 years use torsion springs.
The trade-off is cost. Replacing a torsion spring runs higher than extension springs, but the longevity and safety make it worth the investment.
Extension springs work by stretching. They're mounted above the horizontal tracks on each side of your door and extend and contract as the door moves. Older homes and lighter doors often use this style because they're cheaper upfront.
The problem? They fail more often. Extension springs typically last 5 to 7 years. When one snaps, the other side is usually right behind it. You'll notice jerky, uneven door movement before a complete failure. That's your warning sign to call for service before you're stuck in an emergency situation.
Extension springs also need safety cables running through them. These cables catch the spring if it snaps, preventing it from whipping across your garage. It's a good safety feature, but it means more hardware to maintain and eventually replace.
Look above your garage door. If you see one thick spring in the center above the door, you have a torsion spring. If you see two thinner springs on either side above the tracks, those are extension springs.
Not sure? Call us at Marlborough Garage Doors and we'll identify your system and explain what you're working with. Many homeowners don't realize what type they have until something breaks.
**Need garage door springs in Marlborough today?** Call (860) 784-7787. we cover same-day service across the area.
A snapped spring doesn't just mean your door won't open. It means your opener is now fighting 300+ pounds with no spring assistance. The motor strains, the cables can fray, and the whole system is at risk. You might hear a loud bang or crack when it happens, or you might notice the door is suddenly heavy and stuck.
Both spring types can be replaced, but the process is different. Our guide on what to do when one snaps covers the immediate steps you should take to avoid further damage.
If you're in Wallingford or surrounding towns near Marlborough, the same principles apply. The difference between spring types matters everywhere, not just in our service area.
Regular lubrication extends spring life significantly. We're talking a few dollars in lubricant versus hundreds in premature replacement. The maintenance trick most homeowners skip applies directly to spring longevity.
Torsion springs especially benefit from yearly inspection. Small cracks or rust spots are early warnings. Extension springs need their safety cables checked regularly too. These preventive steps catch problems before they become emergencies.
Schedule a free quote with us to assess your current springs. We'll tell you exactly how much life they have left and what to expect when replacement time comes.
Here's the truth: springs almost always need replacement, not repair. You can't patch a broken spring safely. The entire spring needs to come out and a new one installed at the correct tension.
The cost varies. A single extension spring runs less than a torsion spring, but torsion springs typically last longer and are safer. When you factor in labor and the inconvenience of downtime, the better spring often makes financial sense.
If you're getting an estimate, make sure it includes the spring itself, installation labor, cable inspection, and any safety hardware updates. Our estimate guide walks you through what a fair price looks like.
A broken spring isn't something to live with while you save money. Your door becomes unpredictable. Kids or pets could get hurt. Your opener wears out faster fighting the weight. One failure usually means the other side is close behind.
Call (860) 784-7787 for a same-day estimate if you suspect your springs are failing. We'll give you a clear price and explain your options without pressure. Marlborough homeowners have trusted us to handle spring replacements for years because we do the work right the first time.
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How long do garage door springs actually last? Torsion springs last 7 to 9 years with normal residential use, about 10,000 to 15,000 cycles. Extension springs typically last 5 to 7 years. These estimates assume regular lubrication and proper maintenance. Lack of lubrication can cut these timelines in half.
Can I replace one spring if only one breaks? Technically yes, but it's not recommended. When one breaks, the other is usually near the end of its life too. Replacing both together costs slightly more upfront but prevents a second failure weeks later. It's more convenient and ultimately saves money.
Is it dangerous to use my garage door with a broken spring? Yes. Your opener will strain excessively, cables can fray, and the door can drop unexpectedly. The system becomes unpredictable and unsafe for children or pets. Get professional service before using the door again.
How much does a garage door spring replacement cost near me? Extension spring replacement costs between $150 and $300. Torsion spring replacement typically runs $250 to $500, depending on spring size and your door weight. Labor accounts for most of the cost since spring replacement requires proper tools and tension expertise. Get a free estimate from Marlborough Garage Doors for your specific situation.
Should I replace my springs before they break? If your springs are 7 plus years old and showing rust or small cracks, replacement makes sense. This prevents emergency failures and saves you from being stuck. If they're working fine, wait until failure. Preventive replacement is optional, but catching early warning signs is smart homeownership.