2026-04-07 7 min read
Springs are the unsung workhorses of your garage door system. They do the heavy lifting. literally. every single time the door moves. And in a place like Sugar Hill, where temperatures regularly swing from brutal single-digit January nights to humid summer afternoons, those springs are under more stress than most homeowners realize. When one fails, it's usually fast, loud, and completely inconvenient.
If you've ever heard a sharp bang from your garage. like a gunshot. and then found your door dead in the water, there's a good chance a spring just let go. Here's what you need to know.
Most residential garage doors use one of two spring systems: torsion springs (mounted horizontally above the door opening on a metal bar) or extension springs (running along the sides of the tracks). In Sugar Hill's older farmhouses and historic cape-style homes, you'll find both types depending on the age of the garage. Newer builds. including some of the more modern properties going up near Sunset Hill Road. tend to use torsion systems, which are generally more durable and safer.
Garage door springs are rated in cycles, where one cycle equals the door going up and back down once. Standard springs are typically rated for around 10,000 cycles, which translates to roughly 7,9 years of average use. The cold here accelerates wear. metal contracts in sub-zero temps, and when your garage sees overnight lows that can dip to -10°F or colder, that repeated stress chips away at spring life faster than it would in a milder climate.
Don't wait for a complete failure. These are the signals that your springs are on their way out:
- The door feels unusually heavy when you try to lift it manually. Springs counterbalance the door's weight; a worn spring means you're fighting gravity. - The door doesn't stay open or drops faster than normal when released. - You see a visible gap in the coil of a torsion spring. this means it has snapped. - The opener strains or makes grinding sounds during operation. When springs lose tension, the opener has to compensate, which shortens its life too. - The door opens unevenly, sagging on one side, which usually points to one spring failing ahead of the other.
If you're noticing any of these, it's worth getting eyes on the system before you're stuck with a door that won't move at all. Check out our frequently asked questions for quick answers on what to do when your door behaves unexpectedly.
Short answer: yes. When one spring breaks, the other has usually logged similar wear. Replacing only the failed spring means you're likely calling for service again within a few months when the second one goes. It also saves you on trip charges. paying for two service calls instead of one never makes financial sense. Have both replaced in a single visit and be done with it for years.
If you're interested in upgrading, high-cycle springs rated for 25,000 cycles or more are worth considering for Sugar Hill homes. They cost more upfront, but they outlast standard springs by a significant margin. meaning fewer service calls over the life of your door. For a household that parks in a connected garage and runs the door multiple times a day through our long winters, the math works in your favor.
In northern New Hampshire, expect to pay roughly $250,$450 for a professional spring replacement, covering parts and labor for a standard single or double door. That range can shift depending on the spring type, door weight, and whether you upgrade to high-cycle springs. Extension springs generally sit at the lower end of the range; torsion systems cost a bit more because they require precise tensioning during installation.
If your garage is on the more rural end of Sugar Hill. or you're out toward Franconia or Bethlehem. keep in mind that travel time can factor into service costs with some providers. It's always worth asking about that upfront when you call.
For context on what other repair and maintenance services cost, our post on preparing your garage door for spring covers a full seasonal inspection checklist that can help you catch problems before they become expensive.
This is not a YouTube tutorial project. Garage door springs are under extreme tension. enough to cause serious injury if they release unexpectedly. Torsion springs in particular are wound tightly on the shaft, and a slip during installation or adjustment can send components flying with significant force. Professional technicians have the proper winding bars, safety equipment, and experience to do this safely.
Beyond the safety issue, incorrect spring sizing will damage your opener over time and leave the door unbalanced. The spring has to be matched precisely to the door's weight and dimensions. If it's wrong, you'll feel it. and your opener will feel it even more.
Sugar Hill Garage Doors carries the right springs for the range of door types common to this area, from the heavier insulated steel doors on modern builds to the lighter doors on older carriage-style garages. Reach out to schedule a service call and we'll get your system back in working order.
In northern New Hampshire, expect standard springs to last 7,10 years under normal use. Homes where the garage door is used frequently. or where the garage isn't heated and sees repeated extreme cold. may see springs wear out sooner. High-cycle springs rated for 25,000+ cycles are a smart upgrade for Sugar Hill homeowners who want fewer replacements over time.
Technically the door may still move with a broken spring if you have an opener, but you shouldn't operate it. Running the opener without working springs puts severe strain on the motor and can cause the door to drop suddenly, creating a safety hazard. Disconnect the opener and leave the door in place until a technician can assess it.
Torsion springs are mounted horizontally above the door opening. you'll see one or two thick coiled springs on a metal bar. Extension springs run along the horizontal tracks on either side of the door and stretch when the door closes. Both types require professional replacement, but torsion systems are generally considered safer and longer-lasting.