2026-09-18 4 min read
A snapped spring won't wait for a convenient time. Torsion springs sit above your door and twist to lift it; extension springs run along the sides and stretch. Most homes in Dunbarton use torsion springs because they're safer and last longer (typically 7 to 9 years with normal use). If your door won't open or feels heavier than usual, a broken spring is almost always the culprit.
Your garage door weighs 300 to 500 pounds. Springs counterbalance that weight, making it possible to lift by hand or with an opener. Without them, the door would crash down or strain the motor into failure. Springs are engineered to cycle thousands of times. A typical spring handles 10,000 to 20,000 cycles before fatigue sets in. One cycle equals one open and one close.
Think of it this way: if you use your door four times daily, a spring lasts roughly 5 to 7 years before needing replacement. Heavy use or poor maintenance cuts that timeframe shorter.
Torsion springs mount horizontally above the door opening. They twist in a controlled manner, storing and releasing energy smoothly. This design keeps the door balanced and puts less stress on the opener. Torsion springs are standard in modern installations and are far safer if they break because they're contained within a shaft.
Extension springs run vertically along the upper left and right tracks. They stretch to lift the door and retract as it closes. If an extension spring snaps, the broken coil can whip outward and cause injury. That's why many building codes now require safety cables through the spring's center. If you're unsure which type you have, learn more about spring types and maintenance in our cost and replacement guide.
**Need garage door springs in Dunbarton today?** Call (978) 721-8228. we cover same-day service across the area.
A snapped spring produces an obvious symptom: the door won't open, or it opens partway and stops. You might also hear a loud bang or crack when the spring fails. Some homeowners notice the door feels heavier when opening it manually or the opener struggles more than usual.
Don't ignore a weakening spring. Once one breaks, the other is usually close behind because both springs wear at the same rate. Replacing both at once costs less than two separate service calls and prevents another breakdown weeks later.
Pricing depends on the spring type, door size, and whether you need one or both springs replaced. Torsion springs typically run higher than extension springs because they're more durable and require precise installation. Labor is the bigger factor; spring work is specialized and risky if done wrong. A qualified technician needs to measure tension correctly, balance the door, and test it thoroughly.
We're upfront about cost at Garage Door Dunbarton. When you call for an estimate, we'll tell you the exact price before we start work. No surprises. Get a same-day estimate by contacting us.
Proper maintenance adds years to your springs. Lubricate them every few months with a light oil spray designed for garage doors. This reduces friction and allows smoother operation. Also, check your weather stripping and seals because a well-sealed door keeps temperature and moisture stable inside the garage, which helps springs perform better and last longer.
Avoid slamming the door or forcing it open if it feels stuck. A stuck door usually signals a spring issue, alignment problem, or roller wear. Forcing it stresses the remaining spring and speeds failure.
Spring work isn't a DIY project. The tension stored in a coiled spring is powerful enough to cause serious injury if released unexpectedly. Even experienced homeowners should call a licensed technician. Browse our full service offerings to see what we handle.
If your door is stuck, won't open, or feels off, don't wait. A working garage door keeps your family safe and protects your home. Contact us today for a free quote and same-day availability whenever possible.
Call (978) 721-8228 or schedule your appointment online. We serve Dunbarton and surrounding communities with honest pricing and reliable work.
How long do garage door springs last? Torsion springs typically last 7 to 9 years with regular use and basic maintenance. Extension springs may wear out faster, especially in high-use homes. Lifespan depends on door frequency, climate, and lubrication habits.
Can I replace a spring myself? No. Springs hold tremendous tension and release that energy unexpectedly if mishandled. Improper installation or adjustment causes door imbalance, opener strain, and serious injury risk. Always hire a licensed professional.
Why do springs break suddenly? Springs fatigue over thousands of cycles. Metal loses elasticity gradually until one final cycle causes failure. Rust, poor lubrication, and extreme temperature swings accelerate wear and can trigger sudden breaks.
What's the difference between one and two springs? Most residential doors use two springs for balance and safety redundancy. Some lighter doors use one. If both are the same age, replace both together to avoid a second failure shortly after the first repair.
Is a broken spring an emergency? Yes, especially if you need to leave home or park a car inside. A stuck door is a security risk and prevents normal use. Call for same-day service right away.