2026-03-27 6 min read
There's a sound Hull homeowners dread. a sharp crack from the garage, like something heavy falling or a car backfiring, usually early in the morning when you're trying to leave for work. That's almost always a torsion spring letting go. The door goes nowhere after that, and suddenly your car is trapped.
Spring failures don't always announce themselves this dramatically, though. Most of the time, there's a gradual build-up of warning signs over weeks or months before a complete break. Knowing what to look for. especially given Hull's cold winters and high coastal humidity. can save you from being stranded in your driveway.
Your garage door weighs anywhere from 150 to 300-plus pounds. The springs. either a torsion spring mounted horizontally above the door opening or extension springs running along the tracks on each side. are what make that weight manageable. They store mechanical energy when the door closes and release it to assist the lift when the door opens.
Torsion springs are the more common setup in modern homes and are generally more durable, typically lasting 10,000 to 20,000 cycles. Extension springs tend to be found in older garages. and Hull has a significant stock of older homes, including pre-WWII construction throughout Hull Village and along the Hill neighborhoods. If your home was built before the 1980s, there's a reasonable chance you have extension springs.
The lifespan of a spring is measured in cycles, not years. one cycle equals one full open and one full close. At four cycles per day, a standard spring might last seven to nine years. But if your door is used heavily or if salt-air corrosion has been eating at the metal, that lifespan shrinks. This is a real issue in Hull, where springs are exposed to higher humidity and salt air than springs in an inland town like Scituate or Milton.
This is often the first sign homeowners notice. If you disconnect your opener and try to lift the door manually, it should feel relatively light and stay in place when you let go at the halfway point. If it feels like you're lifting the door's full weight, or if it slides back down when you release it, your springs are likely losing tension or failing. The opener may still be running, but it's working far harder than it should. and that extra strain will burn out the motor if left unaddressed.
If your garage door looks lopsided as it moves, or tilts to one side, this often means one spring has failed while the other is still partially functional. The imbalance puts uneven stress on cables, tracks, and rollers. components that can fail as a result. Don't keep operating the door in this condition. The problem won't correct itself and will likely lead to a more expensive repair down the line. Check our FAQ page for more on what a full spring system service typically involves.
Take a look at your springs directly. they're the large coiled components above or beside the door. Rust weakens the metal and makes the spring brittle and more prone to snapping. A rusty spring that looks intact today may break without warning next week. Even more obvious: if you can see a gap of roughly two inches or more in the coil of a torsion spring, it's already broken and the door should not be used.
This kind of visible corrosion is more common in Hull than in drier inland communities. The combination of cold winters and persistent coastal humidity creates ideal conditions for rust to form, especially on springs that haven't been lubricated recently.
When a torsion spring snaps under tension, it releases stored energy all at once. The sound is often compared to a gunshot or a car backfiring. If you hear this. especially if it's followed by a door that won't open. the spring has failed. Stop using the door and call for service. Attempting to force the door open manually or with the opener can damage cables, the opener itself, and other components.
Your garage door opener is designed to guide the door, not carry its full weight. If the opener sounds like it's straining, hums without fully lifting the door, or cuts out partway through the cycle, that's a signal the springs aren't providing adequate support. Continued use in this condition can burn out the motor or strip the gears. turning a spring replacement job into a spring-plus-opener replacement job.
If your opener is also showing its age, our services page covers the full range of opener repair and replacement options available.
It's worth being direct about this: garage door spring replacement is one of the most dangerous home repairs a homeowner can attempt. The springs are under extreme tension. enough to lift hundreds of pounds. When that tension is released improperly, the results can include broken fingers, serious lacerations, or worse. Special winding bars, proper technique, and experience are required to safely unwind and replace these components.
This isn't a warning meant to generate business. it's a genuine safety issue. The risk is real, and a professional service call is much cheaper than an emergency room visit. If you've spotted any of the warning signs above, reach out to Hull Garage Doors to get it looked at before the spring fails completely.
A professional technician will inspect the full door system, not just the spring itself. Springs don't fail in isolation. when one has been struggling, it often affects cables, rollers, and track alignment as well. The technician will also replace both springs at the same time if you have a dual-spring system, since the second spring is usually at a similar point in its lifespan and replacing them together avoids a second service call within months.
When new springs are installed, make sure they're properly lubricated before you leave. and keep up with seasonal lubrication going forward. Given Hull's coastal environment, quarterly lubrication of all moving parts (springs included) is the right interval. For everything related to keeping moisture and weather out of your system, our weatherstripping guide is worth reading alongside this one.
How much does garage door spring replacement typically cost? Extension spring replacement generally runs in the range of $120,$250, while torsion springs typically cost $170,$450 depending on the door size and spring type. Having both springs replaced at the same time, if you have two, is the smarter long-term investment.
Do coastal homes in Hull need heavier-duty springs than standard? Not necessarily heavier-duty, but it's worth specifying galvanized or corrosion-resistant springs when replacing them. Standard steel springs will corrode faster in Hull's salt air environment than they would a few miles inland. upgrading the hardware at replacement time is a small cost that pays off in longevity.
Can I still open my garage door if a spring is broken? Technically, some openers will attempt to move the door, but you shouldn't let them. Operating the door with a broken spring puts extreme strain on the opener motor and cables, and a door without spring support can drop unexpectedly. which is a serious safety hazard. Disconnect the opener and leave the door closed until a technician can assess it.