2026-09-09 7 min read
Here's what most homeowners don't realize about garage door springs in Laconia: you almost certainly have one of two types, and they work in completely different ways. The springs supporting your garage door aren't just interchangeable parts you can swap without understanding the difference. Knowing which type you own, how they function, and when they fail could save you hundreds of dollars and a lot of frustration down the road.
Torsion springs sit above your garage door opening, running horizontally across a metal shaft. When your door closes, these springs wind up like a clock spring, storing mechanical energy. When you open the door, that stored energy releases, counterbalancing the weight of the door itself. This is why your opener doesn't have to work as hard as you'd think.
Most residential garage doors in the Lakes Region use torsion springs because they're durable, smooth, and last longer than their counterparts. A quality torsion spring lasts seven to nine years with regular use, assuming the door opens and closes roughly three to five times daily. The trade-off: torsion springs are more expensive to replace, and you absolutely need professional installation. This isn't a DIY job. A snapped torsion spring carries tremendous tension, and mishandling it can cause serious injury.
Extension springs run along the sides of your garage door opening, parallel to the horizontal tracks. Instead of winding up like torsion springs, they stretch under load when the door lowers. When the door opens, they contract and help lift it. They're simpler in design, which makes them cheaper to buy and replace, but they typically wear out faster.
If your garage door has extension springs, you'll notice they're usually paired with safety cables running through their centers. These cables catch the spring if it breaks, preventing it from whipping across your garage. This safety feature exists because extension springs are more prone to failure and can be dangerous when they snap.
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A snapped spring won't let your door open or close properly, but there are earlier warning signs worth watching. Slow operation, uneven movement, or a loud creaking noise often means springs are weakening. If you notice your door feels heavier than usual or the opener is struggling, that's your cue to get an inspection.
Don't wait until a spring breaks completely. That moment always seems to happen on the coldest day or when you're late for work. Our team at Garage Door Laconia recommends scheduling a free garage door cost estimate in Laconia if you suspect spring wear. We'll tell you exactly what you're dealing with and what it costs to fix it right.
The easiest way to tell is location. Look at the top of your garage door opening. If you see a horizontal spring running across the shaft above the door, you have torsion springs. If you see springs on both sides running vertically along the tracks, those are extension springs. When in doubt, call a professional. Misidentifying your spring type can lead to buying the wrong replacement or attempting a dangerous repair.
Keeping springs in good condition requires minimal effort but pays dividends. Lubricate your springs and tracks every six months with a garage door specific lubricant. This reduces friction, extends spring life, and keeps everything operating smoothly. Our guide on garage door lubrication in Laconia covers the right products and technique.
Also important: test your door's balance monthly. Open your garage door halfway and let it sit. If it drifts up or down, your springs are losing tension. This is a sign to schedule service before something fails completely.
The cost to replace garage door springs varies based on type, door size, and your location in the Laconia area. Torsion springs run higher because the installation is more specialized and requires precision. Extension springs cost less upfront but may need replacement sooner.
Whatever type you have, don't gamble with DIY repairs. Springs carry enough stored energy to cause serious injury or death if mishandled. Schedule a free quote with our team, and we'll handle the diagnosis, replacement, and testing. Same-day appointments available most days.
How long do garage door springs last? Torsion springs typically last seven to nine years with normal use (three to five cycles daily). Extension springs may wear out faster, often in five to seven years, depending on door weight and usage patterns.
Can I replace a garage door spring myself? No. Spring replacement requires specialized tools, knowledge of proper tension, and safety training. Improper installation can cause door malfunction or serious injury. Always hire a licensed professional.
What does it cost to replace garage door springs? Torsion spring replacement typically costs between $200 and $400, including labor. Extension springs run $150 to $300. Get a detailed cost estimate in Laconia for accurate pricing on your specific door.
Why did my spring break? Springs fail from normal wear and tear, rust, lack of lubrication, or repeated use over many years. In New Hampshire's climate, winter salt exposure accelerates corrosion. Regular maintenance extends their lifespan significantly.
What happens if a spring breaks while the door is open? If a torsion spring snaps while your door is open, the door will stay open (safely supported by the opener). If it breaks while closing, the door may drop suddenly. Extension springs with safety cables prevent the spring from whipping across your garage, but the door still won't operate.