2026-03-18 7 min read
If you've lived in Bedford long enough, you know that March is a sneaky month. Temperatures swing from single digits overnight to the low 40s by afternoon, and that constant expansion and contraction doesn't just affect your driveway or your roof. it hammers your garage door springs hard. This is the time of year Garage Door Bedford gets the most calls about broken springs, and there's a clear reason why.
Bedford, NH sits in a humid continental climate zone where winters are genuinely cold and snowy, with January lows regularly dipping below 20°F. The real damage, though, doesn't happen on the coldest days. it happens during the thaw cycles in late February and March when temperatures swing dramatically within a single 24-hour period. Every time metal heats up and cools down rapidly, it contracts and expands. Do that hundreds of times across a winter season and even well-made steel springs develop micro-fatigue.
Torsion springs (mounted horizontally above your door) and extension springs (running along the tracks on either side) both suffer from this stress. Torsion springs are particularly vulnerable because they hold the entire weight load of the door under constant torque. A spring that was installed five or six years ago and has already cycled thousands of times is working with a real disadvantage by the time late winter hits.
Humidity compounds the problem. Bedford's relative humidity stays above 72% for most of the year, and that moisture accelerates rust on uncoated or aging springs. Rust weakens the metal and creates stress points where a break becomes much more likely.
The good news is that springs rarely fail without giving you a heads-up first. Here's what to watch for:
- The door feels heavy when you lift it manually. Disconnect the opener and lift the door by hand to about waist height, then let go. A properly balanced door should stay put. If it crashes down or shoots upward, your spring tension is off. which is directly tied to spring wear. You can read more about what a balanced door should feel like in our complete guide to balance adjustment. - Grinding or squeaking during operation. New noises after a cold snap usually mean metal components are binding or corroding. - The door opens unevenly. If one side rises faster than the other, an extension spring on that side may be weakening. - Visible gaps or separation in the spring coil. Take a flashlight and look at your torsion spring. A visible gap between coils means it has already broken.
Many of Bedford's established neighborhoods. places like Greenfield Farms and the Powder Hill area. feature large colonial and contemporary colonial-style homes with two- and three-car attached garages. These wider doors are heavier, which means they put more stress on springs from day one. A standard double-car door can weigh 150,200 lbs, and the springs are engineered to handle that load across a specific number of cycles. More door weight equals faster spring wear, especially in our climate.
If your home was built in the late 1990s or early 2000s and still has original springs, they are almost certainly past their expected service life. That's not a scare tactic. it's just math.
Here's the honest part: do not attempt to replace or adjust torsion springs yourself. These springs are under enormous stored energy, and a spring that snaps while someone is working on it can cause serious injury. This is one of the few garage door tasks where DIY is genuinely dangerous, not just inadvisable.
What you *can* do safely:
1. Lubricate the springs lightly with a garage-door-specific lubricant (not WD-40) in the fall and again in early spring. This reduces friction and slows rust formation. 2. Test the door balance twice a year using the manual lift method described above. 3. Look for visible rust or corrosion on the spring coils after any extended period of wet, freezing weather. 4. Listen for changes in how the door sounds during daily operation.
If you notice any warning signs, the right call is to schedule a professional inspection before the spring fails completely. A broken spring doesn't just leave you stuck in the garage. it can cause the door to come down hard and fast, damaging your vehicle or, worse, injuring someone.
We also serve customers across the border into Manchester, where older housing stock often has extension springs rather than torsion spring systems. Extension springs are a bit easier to inspect visually but carry their own risks. a snapped extension spring under tension can whip with significant force. If your home has extension springs, make sure they have safety cables threaded through them. If they don't, that's something worth fixing now. Check our services page for a full list of what we handle.
How long do garage door springs typically last in New Hampshire? Most springs are rated for around 10,000 cycles. roughly 7,10 years for the average household. Bedford's freeze-thaw climate and high humidity can shorten that lifespan, so if your springs are approaching the 7-year mark, it's worth having them inspected rather than waiting for a failure.
Can I still use my garage door if a spring is broken? Technically the opener may still run, but operating a door with a broken spring puts extreme strain on the opener motor and cables. It also creates a safety hazard since the door is no longer properly counterbalanced. Stop using it and call for repair as soon as possible.
Do both springs need to be replaced at the same time? If you have two torsion springs (common on heavier doors) and one breaks, most technicians will recommend replacing both. Since they've experienced the same wear over the same number of cycles, the second is likely to fail soon after the first. and replacing both at once saves you a second service call.