2026-04-28 7 min read
There's a sound Medfield homeowners dread: a loud bang from the garage, like something heavy falling off a shelf. You check the garage and nothing's on the floor. But when you hit the button to open the door, it barely moves. or doesn't move at all. That sound was almost certainly a garage door spring snapping.
It happens every winter and early spring in this area. Medfield's temperature swings. from mid-teens in January to 40s and 50s by March. put serious stress on metal components. Springs that have been quietly weakening through years of freeze-thaw cycles finally give out. And when they do, your day comes to a sudden stop.
Here's what you actually need to know.
Your garage door. even a standard single-car steel door. weighs between 130 and 200 pounds. A double-car insulated door can exceed 300 pounds. Springs are what make it feel effortless to open. They store mechanical energy as the door closes and release it as the door opens, doing most of the heavy lifting so your opener motor doesn't have to.
When a spring fails, that counterbalance is gone. The opener tries to lift dead weight, strains its motor, and either stalls or stops. If you try to lift the door manually, you're lifting the full weight of the door yourself. which is why doors with broken springs feel nearly impossible to budge.
There are two types of springs used on residential garage doors:
- Torsion springs. mounted horizontally on a shaft above the door opening. Most modern doors, including the vast majority of Medfield homes built in the last 30 years, use this system. They're more durable and safer when they fail. - Extension springs. run along the sides of the door tracks. More common on older homes and lighter doors. Less expensive to replace, but carry a higher safety risk if they snap, since they can become projectiles.
If you have an older Cape Cod or split-level with the original hardware, there's a reasonable chance you're still on extension springs. Worth knowing before you call for service. You can also reference our complete spring replacement guide for a deeper technical breakdown.
Springs rarely fail with zero warning. Most show at least one of these signs before they go:
The door feels unusually heavy. A properly balanced door. when disconnected from the opener. should feel like it weighs around 10 to 15 pounds as you lift it manually. If it feels like it's fighting you, the springs are losing tension.
The door drifts down when you stop it partway. Open the door manually to about waist height and let go. It should stay in place. If it drifts downward, your spring tension is off.
Visible gaps in the coils. Walk up and look at the spring above your door. A healthy torsion spring's coils should be touching or nearly touching. A gap in the middle means the spring has already snapped.
A loud bang or pop. This is usually the spring going. If you hear it, stop using the door immediately. running the opener against a broken spring can burn out the motor.
The opener strains or hums without fully opening the door. The motor is trying to compensate for lost spring tension. Running it this way repeatedly can shorten the opener's life significantly.
Medfield winters accelerate wear on springs. The metal contracts in the cold, and the repeated temperature cycling between our cold nights and warmer days. even in April. adds stress to springs that are already working hard. Homes near the Charles River lowlands or in shaded lots that hold moisture longer tend to see faster spring corrosion. Keep an eye on routine maintenance habits to catch these issues early.
Here's an honest price range based on 2025,2026 data for the Massachusetts market:
- Single torsion spring replacement (parts + labor): $200,$350 - Pair of torsion springs (recommended when one fails): $300,$500 - Extension spring replacement (pair): $150,$250 - High-cycle spring upgrade (longer lifespan): adds $50,$150 to the above
Boston-area labor rates run higher than the national average, which is why you may see quotes slightly above the national $150,$350 range cited by most cost guides. That's normal. it reflects local wages, insurance, and the cost of doing business in this market.
One thing worth knowing: when one spring fails, the other is usually not far behind. Both springs age together. Replacing only the broken one and leaving the other in place often means another service call within a year. Most reputable shops. including Garage Door Medfield. will recommend replacing both at the same time and explain why the added cost is worth it.
Standard springs are typically rated for 10,000 cycles (one cycle = one full open and close). At two to four uses per day, that's roughly 7,10 years. High-cycle springs rated at 25,000 to 50,000+ cycles cost more upfront but can last 15 to 20 years. For a busy Medfield household using the garage as the primary entry. which describes most of us. the upgrade makes financial sense over the long run.
This needs to be stated plainly: garage door spring replacement is not a DIY job. Full stop.
Garage door springs are under extreme tension. enough to lift hundreds of pounds thousands of times. When a torsion spring is wound, it stores enormous mechanical energy. Without calibrated winding bars, proper technique, and experience reading spring specifications, handling that energy can result in serious injury. The U.S. Consumer Product Safety Commission reports approximately 30,000 garage door-related injuries annually nationwide.
DIY parts cost $30,$100 for basic springs, but the risk is not proportional to the savings. A professional technician shows up with the right spring for your door's weight, the proper tools, and warranty coverage on both parts and labor. The repair typically takes under two hours from arrival to finish.
If your door is stuck right now and you need it open, see our guidance on emergency garage door situations. there are safe ways to manually release the door without risking injury or making the problem worse.
With proper installation and basic annual maintenance. primarily lubrication with a silicone or lithium-based spray. new torsion springs should last 7,12 years under normal use (standard springs) or 15,20 years with high-cycle upgrades. Homes in Medfield with higher garage use frequency. think multiple drivers, frequent deliveries, or garages that serve as primary entrances. will reach cycle limits faster.
A yearly maintenance check that includes lubricating the springs, checking the door balance, and inspecting the cables is the single best thing you can do to extend spring life and avoid surprise failures.
If you're seeing any of the warning signs above. or you've already heard that telltale bang. don't wait. Running your opener against a broken spring risks burning out the motor, which turns a $300 repair into a $600+ problem.
Garage Door Medfield serves Medfield and surrounding towns including Walpole, Dover, Millis, and Westwood. To schedule a same-day inspection or spring replacement, visit our contact page or browse our full services to see what's covered.
Q: Can I still use my garage door if a spring is broken? No. and you shouldn't try. Operating the door with a broken spring puts enormous strain on the opener motor and can cause the door to drop suddenly, creating a serious safety hazard. Disconnect the opener and leave the door in its current position until a technician arrives.
Q: How do I know if I have torsion or extension springs? Look above the garage door when it's closed. If you see a horizontal metal bar with a coiled spring wound around it, that's a torsion spring system. If you see springs running horizontally along the side tracks of the door, those are extension springs. Most homes built in Medfield in the last 25,30 years have torsion springs.
Q: Is it normal for springs to break more in winter or early spring? Yes. this is very common in New England. Cold temperatures cause metal to contract and become more brittle, and the repeated thermal cycling between cold nights and warmer days accelerates wear. Springs that are already near the end of their service life often fail during or just after the coldest months. Scheduling a pre-winter inspection is the best way to catch springs that are approaching failure before they break at an inconvenient time.