2026-08-26 7 min read
Garage door springs come in two types: torsion and extension. Torsion springs sit above your door and twist to lift it. Extension springs run along the cables on each side and stretch to help raise the door. Both fail eventually. When they snap, your door becomes a 300-pound deadweight that won't budge.
I've seen homeowners try to force a door open after a snapped spring. Some have torn rotator cuffs. Others have watched their garage door slam shut on a car or worse. This isn't a "wait and see" problem. If your springs are failing, you need a professional assessment within days, not weeks.
Torsion springs are the heavy hitters of garage door systems. They're wound tight and under extreme tension. When you open your door, the spring unwinds, transferring energy to lift the entire door panel. Most modern residential doors in Derry use torsion springs because they're more durable and last longer than extension springs.
A typical torsion spring lasts 7 to 9 years with normal use. That's roughly 10,000 to 15,000 cycles (open and close). If your door opens multiple times daily, your springs are working harder. Cold New England winters also accelerate wear. Metal contracts in freezing temps, making springs brittle.
The biggest danger with torsion springs? They fail without warning. You'll open your garage one morning, and the door won't budge. No creaking. No slow decline. One second it works. The next it doesn't. That's why regular maintenance inspections matter.
Extension springs hang beside your door's track rails. They're gentler on the door itself but less reliable over time. When a torsion spring fails, you lose lifting power gradually. When an extension spring snaps, one side of your door may drop while the other stays up, jamming your entire system.
Extension springs also create a safety risk. If the safety cable attached to each spring fails at the same time the spring snaps, the spring can whip across your garage. I've seen springs embed themselves in drywall. Imagine that hitting a person.
Most newer doors use torsion springs specifically to avoid these hazards. However, if you're in an older Derry home with extension springs, have them inspected annually. Learn more about when repair versus replacement makes financial sense.
**Need garage door springs in Derry today?** Call (978) 645-3493. We cover same-day service and provide honest estimates before any work begins.
Your door will telegraph problems before it fails completely. Listen for a loud bang or crack from the garage. That's usually a spring snapping. You might also notice your door moving slower than usual, especially during opening. If the door feels heavier to operate manually, springs are losing tension.
A visible gap between spring coils is another red flag. Springs under tension should look tightly wound. Loose or separated coils mean the spring is weakening. Don't try to tighten it yourself. Garage door springs operate under pressures that can cause serious injury.
If your door hangs unevenly or sags to one side, one spring may have already failed. This puts extra stress on your opener motor and cables. Left unchecked, you'll face a much larger repair bill than catching it early.
Replacing garage door springs requires specialized tools and knowledge. Spring tension can exceed 200 pounds per inch. Releasing that tension improperly can break bones. This isn't a DIY job, even if you're mechanically confident.
When you call Garage Door Derry for a spring replacement, we'll inspect the entire system. We check cables, pulleys, and the door itself for hidden damage. Sometimes a snapped spring damages other components. Our estimate covers everything you need to know upfront. No surprise charges after we finish.
Schedule a free quote today so you're not stuck with a jammed door during winter or when you need to use your garage most.
New Hampshire winters are brutal on garage door springs. Cold metal loses flexibility. Springs that work fine in July may fail in January. If your springs are 6 or 7 years old, plan for replacement before winter arrives. This prevents emergency calls during snow emergencies when service technicians are overbooked.
Spring replacement cost varies based on spring type and door weight. Our technicians can give you an accurate estimate after a quick inspection. Read about the real cost factors affecting garage door pricing in Derry.
If your garage door springs are showing any warning signs, don't delay. Call us at (978) 645-3493 for a same-day or next-day appointment. We'll assess whether repair or replacement is the safest option for your family and budget.
Your garage door system protects your home and your family. Broken springs compromise both. Let's make sure yours stays reliable.
How much do garage door springs cost to replace in Derry? Spring replacement typically ranges from $200 to $400 per spring, depending on type and door size. Torsion springs cost slightly more than extension springs. Our estimate includes labor, parts, and a safety inspection of related components.
Can I replace just one spring if the other is still working? We recommend replacing both springs at the same time. If one has failed, the other is likely near the end of its life. Replacing both prevents a second failure weeks later and ensures balanced door operation.
How often do garage door springs need maintenance? Springs don't require ongoing maintenance, but your entire system should be inspected annually. We check spring tension, cable condition, and door balance during routine tune-ups. This catches problems before they become emergencies.
Why do garage door springs fail faster in winter? Cold temperatures cause metal to contract and lose elasticity. Springs become brittle in freezing conditions. Combined with increased use during storms, New England winters accelerate wear. Springs that work well in summer often fail their first harsh winter.
What's the difference between a snapped spring and a stretched spring? A snapped spring breaks completely and separates. A stretched spring loses tension gradually but stays intact. Both require professional replacement. A stretched spring feels like your door is getting heavier each time you use it.