2026-03-29 7 min read
If you've ever walked into your garage on a cold February morning and heard a loud bang. like a gunshot from inside the wall. you already know what a broken torsion spring sounds like. It's one of the most common calls we get here in Holderness, especially in late winter. And it makes sense once you understand what's actually happening to the metal during a central New Hampshire winter.
Holderness sits nestled between the foothills of the White Mountains and the shores of Squam Lake, at an elevation of nearly 800 feet. Temperatures here regularly dip below zero in January and February, then climb back above freezing by afternoon. That constant expansion and contraction is brutally hard on torsion springs.
Here's the basic physics: cold steel becomes less flexible and more brittle, while existing micro-fractures in the metal expand more quickly under tension. By the time you hit late February or early March, your springs have already endured months of freezing nights and warmer afternoons. That combination of metal contraction and cycle fatigue is exactly why so many homeowners hear that loud snap in late winter. the spring was already weakened, and the cold simply pushed it past its limit.
This isn't just a Holderness problem. our neighbors in Plymouth and Ashland deal with the same thing. but the elevation and lake-effect moisture here in Grafton County can accelerate corrosion on spring coils, compounding the issue.
Torsion springs sit horizontally above the door opening and do the heavy lifting. Extension springs run along the horizontal tracks on either side of the door. Most homes in Holderness with attached garages. the Cape Cods, the log cabins near the lake, the farmhouse-style builds along Shepard Hill Road. use torsion springs. Both types fail, but torsion springs tend to fail more dramatically when they go.
Standard builder-grade springs are typically rated for around 10,000 cycles. For a household using the garage as the main entry point, that lifespan shrinks faster than most people expect. When you factor in New Hampshire's extreme winters, spring life can drop significantly compared to milder climates.
Springs don't always go without warning. Here's what to look for:
- A visible gap in the torsion spring coil. a clear separation in the metal - The door feels unusually heavy when you lift it manually or the opener struggles mid-travel - Jerky, uneven movement on the way up or down - Rust or surface corrosion building up on the coils. moisture from the lake and November's high humidity levels can accelerate this - Squealing or grinding sounds that weren't there before
If you're noticing any of these, it's worth a professional inspection before the spring fails completely and leaves you unable to get your car out.
This is a common question. If one spring breaks and the other is the same age, most experienced technicians will recommend replacing both at the same time. The logic is straightforward: if one has hit its fatigue limit, the other is likely close behind. Doing both at once saves you a second service call within months.
When you're replacing springs, it's also worth asking about high-cycle springs. those rated for 20,000 to 30,000 cycles or more. In a climate like ours, that upgrade can effectively double or triple the usable lifespan and often comes with powder-coated finishes that resist the moisture-driven corrosion common around the Lakes Region.
For a broader look at how components wear out differently and what drives service costs, check out our breakdown of labor versus parts decisions. it'll help you ask the right questions before any technician arrives.
Torsion springs are under enormous tension. enough to cause serious injury if mishandled. This is one of those repairs where the risk genuinely isn't worth it. The tools required are specialized, and an improperly wound spring can release violently. Leave this one to a licensed technician. Check our full list of services to understand what a proper spring replacement involves and what else should be inspected while the tech is on-site.
A few habits go a long way toward getting the most out of your springs in a New Hampshire winter:
1. Lubricate the coils twice a year. once before winter, once in spring. using a silicone-based or lithium-grease lubricant designed for garage doors. Never use WD-40. 2. Keep the garage door balanced. Disconnect the opener and manually lift the door halfway. If it doesn't stay put on its own, the springs are likely out of balance and adding extra strain to the system. 3. Watch for corrosion in the fall, before freezing temperatures arrive. Surface rust on coils is easier to address before it works its way into the metal. 4. Avoid forcing a door that's sluggish. If the opener is struggling, stop using it until you know why. Running the motor against a failing spring accelerates wear on both components.
Garage Door Holderness serves homeowners throughout the Holderness area. including those with seasonal cottages that sit unused through the coldest months. If your home is vacant from November through March, the first spring test-run of the season is particularly important. Check the springs visually before hitting that button.
The most reliable sign of a broken torsion spring is a visible gap or separation in the coil above the door. The door will also feel extremely heavy when you try to lift it manually, since the spring is no longer counterbalancing the weight. A broken cable or worn roller can look similar from a distance, so a quick manual lift test usually tells you a lot.
For a single-car garage with a straightforward torsion spring setup, most technicians can complete the replacement in under two hours. A two-car garage with dual springs may take a bit longer, especially if the cables and drums need inspection as part of the service.
For most year-round residents, yes. The additional upfront cost is usually modest, and the extended lifespan. especially paired with a protective coating that resists lake-area moisture. makes the upgrade worthwhile in this climate. Ask your technician what cycle rating they recommend for your specific door weight and usage pattern.