Garage Door Springs in New Boston: Torsion vs. Extension and Real Costs
2026-08-11 7 min read
Most homeowners don't realize there are two completely different types of garage door springs, each with its own failure pattern, lifespan, and price tag. A torsion spring works nothing like an extension spring. Understanding which one you have saves you money and prevents emergency calls at midnight.
What Are Garage Door Springs, and Why Should You Care?
Your garage door weighs between 300 and 700 pounds. Springs counterbalance that weight so your opener doesn't burn out after a year. Without functioning springs, you cannot safely operate your door.
There's no middle ground here. Springs either work or they don't. When one fails, the door becomes a safety hazard and a financial problem. That's why knowing what you have matters before something breaks.
Torsion Springs: The Most Common Type
Torsion springs are mounted horizontally above your garage door opening, on a metal rod that runs across the top of the frame. They twist (torque) to lift the door. Most residential doors in New Boston use torsion springs because they're durable and compact.
A quality torsion spring lasts 7 to 9 years under normal use. Some last longer if you maintain the door and don't slam it repeatedly. When a torsion spring snaps, the door will not open at all. You'll hear a loud bang. That's your spring breaking.
The cost for a torsion spring replacement typically ranges from $150 to $400 per spring, plus labor. Most doors have two springs, so budget accordingly. If you're curious about what replacement really costs in your area, our guide on garage door repair estimate in New Boston: what it really costs breaks down the math.
Extension Springs: The Backup Counterbalance
Extension springs are mounted vertically on both sides of the door opening. They stretch and contract to provide lifting force. Older doors and lighter doors sometimes use extension springs instead of torsion.
Extension springs also fail, but they fail differently. You might notice the door becoming harder to open, or it might stick partway up. Extension springs can snap suddenly, just like torsion springs, but the failure mode is often more gradual.
**Need garage door springs in New Boston today?** Call (978) 440-6254 for same-day service across the area.
Why Springs Fail (And How to Avoid It)
Springs fail because metal fatigues over time. Each cycle of opening and closing stresses the metal a tiny bit more. After thousands of cycles, that stress becomes a crack, then a break.
New Boston winters accelerate this process. Cold temperatures make metal brittle. Salt air and moisture corrode the spring's surface. If you live near the coast in southern New Hampshire, your springs age faster than they would inland. We've documented this in why New Boston winters are hard on garage door springs, which explains the seasonal pressure.
You can't prevent failure entirely, but you can extend the life of your springs by maintaining proper tension and lubricating the door annually. A snapped spring always requires professional replacement. Don't attempt this yourself. The tension in these springs is dangerous.
How Much Do New Garage Door Springs Cost?
Spring cost depends on the type, length, and wire gauge. A basic torsion spring might cost $80 to $150. A heavy-duty commercial spring for a thick, insulated door can cost $250 to $400. Labor typically adds $100 to $250.
If both springs need replacement (which is common when one fails), expect to pay $400 to $800 total. Some technicians recommend replacing both springs at the same time, even if only one is broken, because the second one is likely to fail soon after.
For a detailed breakdown of what drives these prices, read garage door springs cost in New Boston: how to avoid overspending.
When Should You Replace Springs Before They Break?
Springs that are 8 years old are candidates for preventive replacement. If you hear creaking, groaning, or the door moves unevenly, schedule an inspection. Our team at New Boston Garage Doors can assess your springs and provide a free estimate. Same-day service is available for emergency repairs.
Don't wait for a snapped spring to ground your door. Preventive replacement is cheaper than dealing with emergency damage to the door itself.
Getting Help Near You
If you're in New Boston or the surrounding areas of southern New Hampshire, professional spring replacement is just one phone call away. We handle torsion springs, extension springs, and all the hardware that supports them. Explore our full garage door spring services to see what we offer.
When your spring fails, don't waste time. A broken spring means no access to your garage, potential security risks, and stress. Call us at (978) 440-6254 or schedule a same-day service visit and get your door working again.
Your safety and peace of mind matter. Let's get this right the first time.
Frequently Asked Questions
How do I know if my garage door spring is broken? You'll hear a loud bang when it snaps. Afterward, the door won't open, or it opens only partway and feels very heavy. Don't force it. Call for professional help immediately.
Can I replace a garage door spring myself? Springs are under extreme tension and can cause serious injury if handled incorrectly. Professional replacement is the only safe option.
How long do garage door springs last? Torsion springs typically last 7 to 9 years. Extension springs vary but usually fail around the same timeframe. Harsh weather and frequent use shorten lifespan.
What's the difference between torsion and extension springs? Torsion springs mount horizontally above the door and twist to lift it. Extension springs mount vertically on the sides and stretch to provide lift. Torsion springs are more common and durable.
How much does spring replacement cost in New Boston? Single spring replacement runs $250 to $550 total, including labor. Both springs typically cost $400 to $800. Exact pricing depends on spring type and door weight.