Why Garage Door Springs Break in Winter (And What Pembroke Homeowners Can Do About It)
2026-03-27 7 min read
If you've ever walked into your garage on a frigid January morning, hit the button, and heard nothing but a loud bang followed by silence, you already know what a broken torsion spring feels like. It's one of the most common calls we get at Pembroke Garage Doors from late November straight through March.and there's a real, physical reason it keeps happening here in central New Hampshire.
What Winter Actually Does to Your Springs
Pembroke sits in Merrimack County with a genuine four-season climate. Temperatures swing from the low teens in January to the low 80s in summer, and that spread matters enormously for the metal components on your garage door. Torsion springs are made of tightly wound steel, and steel becomes more brittle when it gets cold. The colder it gets, the less flexible the spring.which means it's carrying more tension at the exact moment it has the least ability to absorb stress.
Here's the pattern that plays out every winter: overnight temperatures drop into the single digits, the spring contracts and stiffens, then you hit the opener button at 7 a.m. and demand full movement from a spring that's already at its limit. That's why so many springs snap first thing in the morning rather than in the middle of the afternoon.
It's not just the cold itself, either. The freeze-thaw cycling that characterizes a Pembroke winter.warm enough to thaw in the afternoon, back below freezing by midnight.causes repeated contraction and expansion in the metal. Over a full winter season, that cycling accumulates into what engineers call metal fatigue: microscopic cracks that eventually propagate until the spring lets go all at once.
Rust Makes It Worse
Moisture is the other piece of the puzzle. Pembroke's proximity to the Merrimack and Suncook rivers means the air carries real humidity, and unconditioned garages.which is most of the Capes, Colonials, and ranch-style homes throughout town.don't do much to buffer that. Moisture settles on spring coils, rust develops, and rust increases friction between the coils every time the door cycles. That added friction accelerates wear faster than most homeowners realize. A silicone-based lubricant applied in the fall goes a long way toward keeping rust from taking hold before the cold sets in. For a deeper look at proper lubrication technique, our complete guide to bearing lubrication covers the process from start to finish.
How to Tell Your Springs Are Getting Close
Springs rarely fail without at least some warning. Here's what to watch for:
- The door feels heavier than usual when you lift it manually. If the opener strains or the door drifts back down when you disengage it, the spring tension is off. - Uneven or jerky movement when opening or closing.one side lifting faster than the other is a sign of unbalanced spring tension. - Visible gaps in the coil. A separated torsion spring is easy to spot if you know to look; you'll see a clear break in the coil above the door. - A sudden loud bang from the garage, even when the door isn't in use. That's often the sound of a spring snapping under tension. - Squeaking or creaking that wasn't there before, especially in cold weather.
If any of these sound familiar, don't keep running the opener and hope it holds. A snapped spring means the opener is suddenly handling the full weight of the door on its own.which will burn out the motor and can cause the door to drop. Stop using the door and call a technician.
The Cycle Count Reality
Standard builder-grade torsion springs are typically rated for around 10,000 cycles.one cycle being a single open and close. If your household uses the garage door as a primary entry point (which most Pembroke families do, given our winters), you're easily running four to six cycles a day. Do the math and a standard spring can reach the end of its rated life in seven to ten years.
Many of the Capes and ranch homes in Pembroke were built in the 1970s through the early 1990s. If you moved into a home and don't know when the springs were last replaced, that's useful information to find out.especially before next winter.
Upgrading to high-cycle springs (rated for 20,000 or more cycles) at replacement time is a straightforward way to extend the service interval significantly. The cost difference is modest compared to the inconvenience of an emergency breakdown on a February morning when the temperature in Concord is reading 8°F.
What You Can Do Right Now
Spring replacement is not a DIY task. The springs store an enormous amount of tension, and improper handling causes serious injuries every year. What you *can* do safely as a homeowner:
1. Visually inspect your springs from ground level. Look for gaps, heavy rust, or any section that looks different from the rest of the coil. 2. Test the door balance. Disconnect the opener and manually lift the door to about waist height. It should stay there on its own. If it drops or shoots up, the springs are out of balance. 3. Lubricate the springs in fall. A silicone-based spray.not WD-40.applied to the coils before temperatures drop helps slow corrosion and reduces friction. 4. Schedule an annual inspection. A technician can spot micro-fatigue and uneven tension before it becomes an emergency.
If you're overdue for a checkup or want to get ahead of a potential spring failure before the next cold snap, get in touch with our team to schedule a service visit. We cover Pembroke and all the surrounding towns, including Franklin, Bristol, and New London.
Frequently Asked Questions
How do I know if it's the spring or the opener that's broken? Disconnect the opener and try to lift the door by hand. If it's extremely heavy or won't stay up on its own, the spring is the problem. If the door lifts easily by hand but the opener won't move it, the issue is more likely with the opener or its drive system.
Can I replace just one spring if only one breaks? Technicians typically recommend replacing both springs at the same time. If one has reached the end of its life, the other is close behind. Installing a new spring next to an old worn one creates uneven tension, puts extra strain on the new spring, and usually results in a second failure within months.
Is a spring repair covered by homeowner's insurance? Generally, no.spring failure from normal wear and tear is considered maintenance, not a covered loss. However, if a broken spring causes damage to your vehicle or the garage structure, that secondary damage may be worth discussing with your insurer.