2026-04-18 7 min read
If you've ever heard a loud bang from your garage followed by a door that won't budge, you already know what a broken spring feels like. It's one of the most common garage door problems we see across Wenham and the surrounding North Shore towns. and it tends to happen at the worst possible times, like a Monday morning in February when temperatures have been swinging between 10°F and 40°F all week.
Understanding what springs do, how to spot failure early, and what replacement actually involves can save you time, money, and a lot of frustration.
Your garage door isn't lifted by the opener alone. The opener provides the trigger. but the torsion springs (or extension springs on older setups) do the real heavy lifting. They store mechanical energy when the door closes and release it when the door opens, counterbalancing a door that can weigh anywhere from 150 to over 300 pounds.
When a spring breaks, that counterbalance disappears. The opener suddenly has to move dead weight it was never designed to handle alone, which is why your garage door system can sustain additional damage quickly if you keep trying to operate it after a spring snaps.
Wenham sits in a humid continental climate zone. warm, humid summers and cold, snowy winters where temperatures routinely swing from the low 20s up into the 80s across the year. That kind of thermal cycling is brutal on steel. The freeze-thaw cycle and salty coastal air that drifts in from Beverly and the coastline cause steel fatigue to accelerate, especially in older properties or garages that aren't climate-controlled.
Most standard springs are rated for roughly 10,000 open/close cycles. High-cycle springs can reach 25,000 or more. For a typical household opening the door four or five times a day, a standard spring lasts roughly five to seven years. less if the door is heavy, unbalanced, or the spring was undersized to begin with.
Springs don't always break all at once. Here are the warning signs to watch for:
- The door feels heavy when you lift it manually. Disconnect the opener, grab the handle, and try lifting manually to waist height. It should stay put with minimal effort. If it drops back down, the spring tension is off. - Sluggish or jerky movement. The door hesitates, shudders, or moves unevenly during operation. - The opener strains or reverses. Your opener may be working harder than it should, potentially triggering its auto-reverse function. - A visible gap in the spring coil. On torsion springs mounted above the door, a break is usually visible as a gap in the coil. sometimes an inch or more wide. - A loud bang. When a spring snaps under full tension, it makes a sharp, gunshot-like sound. If you heard this and your door stopped working, that's almost certainly what happened.
For guidance on safety-related behavior you may notice. like the door reversing unexpectedly. our post on safety reversal testing explains how your door's safety systems interact with spring tension.
Most homes built in Wenham in the last 30 years use torsion springs. a single (or double, on heavier doors) spring mounted horizontally on a metal shaft above the door opening. They're more precise, longer-lasting, and safer than the alternative.
Older homes. and Wenham has plenty of them, including colonial-era properties along Main Street and estate homes near Cherry Street. may still have extension springs, which run along the horizontal tracks on either side of the door. These are less expensive to replace but require safety cables to prevent injury if they snap. If your home is older and you haven't had the spring system assessed in a while, it's worth having a pro look at it.
One important rule: if you have two springs and one breaks, replace both. The surviving spring is the same age and has the same wear. it will fail shortly after, often within weeks. Replacing both at once saves you a second service call and protects your opener from repeated strain.
Short answer: no. Garage door springs are under extreme mechanical tension. enough force to cause serious injury or death if released suddenly and without the right tools. This isn't a job for a YouTube tutorial and a Saturday afternoon. Professional technicians use calibrated winding bars, know the correct torque for your door's specific weight and height, and check cable drums, track alignment, and opener load after every spring job.
If cost is a concern, check out our financing options guide. spring replacement is a legitimate repair expense, and options exist to make it manageable.
A professional spring replacement on a single-car door typically takes one to two hours. Here's the general sequence:
1. Tension check and diagnosis. confirming the spring type, door weight, and whether cables or drums also need attention 2. Safe spring removal. releasing remaining tension before removing the broken spring 3. New spring installation. matching the correct cycle rating and torque to your door 4. Balance test. verifying the door holds at mid-height when disconnected from the opener 5. Opener test. confirming the opener runs smoothly with the new spring load
After replacement, ask about upgrading to high-cycle springs. For most Wenham homeowners using attached garages daily through long winters, the additional cost pays for itself in longevity.
Most residential spring replacements in the North Shore area start around $350 and go up depending on door size, spring type, and whether cables or drums also need work. Upgrading to high-cycle springs adds some upfront cost but significantly extends the time between replacements.
Technically the opener may still try to move the door, but you should not operate it. The strain on the opener motor can cause additional damage, and a door moving without proper spring support is a safety hazard. Disconnect the opener and leave the door closed until a technician can assess it.
Standard springs are rated for around 10,000 cycles. Given Wenham's cold winters and the thermal stress on steel hardware, many homeowners opt for high-cycle springs rated at 25,000 cycles or more, which can last well over a decade with normal use.