Garage Door Springs in Cambridge: Torsion vs. Extension & When to Replace
2026-07-17 7 min read
In our years serving Cambridge, we've seen this problem again and again. A snapped spring leaves your garage door stuck, and homeowners panic because they don't understand what broke or why it matters. The truth is simpler than most think: your garage door relies on one or two springs to lift 300-400 pounds, and when those springs fail, nothing moves. This guide explains the two main types of garage door springs in Cambridge, why they wear out, and what you'll actually pay to fix them.
Two Types: Torsion and Extension Springs
Your garage door uses one of two spring systems, and knowing which you have matters for repair costs and timelines. See our guide on preparing your garage door for hot weather: essential tips.
Torsion springs sit horizontally above your door opening, wound tight like a clock spring. When you open the door, they unwind and release energy. They're mounted on a metal shaft and counterbalance your door's weight. Most modern residential doors in the Cambridge area use torsion springs because they're safer, last longer (typically 7 to 9 years with normal use), and work more smoothly than the alternative.
Extension springs hang vertically on each side of your door track. They stretch when the door closes and contract to help lift it open. They're cheaper upfront but wear out faster, usually lasting 5 to 7 years. Older homes and budget installations often have extension springs. They're also less safe because the pulley system creates more moving parts that can fail suddenly. Read about garage door installation in cambridge: types, materials & real costs.
The difference matters when you call for a repair estimate. Torsion replacement costs more than extension spring work because the job requires precise torque calculations and specialized tools. We always include the type in our free estimate so you know exactly what you're paying for.
Why Springs Fail
Springs don't just snap for no reason. They fail because they're designed to cycle a specific number of times. A typical residential spring handles 10,000 to 15,000 cycles before metal fatigue sets in. One cycle equals one open and one close. Heavy use, rust from humidity, and lack of maintenance all speed up failure.
Cambridge winters can accelerate rust on uncoated springs, especially if your garage door isn't insulated or if you park a wet car inside regularly. Moisture condenses on the spring shaft, and corrosion weakens the metal. That's why we recommend annual maintenance checks. A small tune-up now beats a snapped spring emergency later.
**Need garage door springs in Cambridge today?** Call (617) 741-5769. we cover same-day service across the area.
What Does Spring Replacement Actually Cost?
Our pricing is straightforward because we believe you deserve to know what you're paying for before we start work.
Torsion spring replacement runs $250 to $400 per spring, including labor and materials. Most homes have two springs (one on each end of the shaft for balance), so budget $500 to $800 total. If only one spring has snapped, we still recommend replacing both at the same time. Here's why: springs age together. If one just failed, the other is likely close behind. Replacing one now and another in six months means two service calls and two trips up a ladder for you. One job, one cost, one peace of mind.
Extension spring replacement costs $150 to $300 per spring because the parts are cheaper and the labor is simpler. You typically have two (one per track), so figure $300 to $600 total.
Labor makes up about 60 percent of the cost. Spring replacement requires removing the old spring under tension, measuring the new one precisely, and testing the door balance afterward. It's not a DIY job. A mistake can cause injury or damage your door opener.
For detailed pricing info specific to your door type, check our post on garage door spring replacement cost in Cambridge. If you want to understand how springs fit into your overall door maintenance, read our guide to garage door maintenance in Cambridge.
Prevention and Maintenance
You can't stop springs from wearing out, but you can slow it down significantly. Regular lubrication reduces friction. We use a silicone-based lubricant on the spring shaft twice a year. Avoid WD-40 or regular oil, which attract dust and gum up over time.
Check your garage door safety features too. A working auto-reverse mechanism prevents your opener from forcing a stuck door, which puts extra strain on springs and can cause premature failure.
When you notice your door feels heavier than usual, opening slower, or making creaking sounds, that's your signal to call. Don't wait for the snap. We offer same-day estimates and can often complete replacement work within 24 hours.
Ready to Schedule?
A snapped spring isn't an emergency you can ignore. Your door won't open, and forcing the opener can damage it further. Schedule a free quote with Cambridge Garage Doors today. Call us at (617) 741-5769 for same-day service.
We serve Cambridge and surrounding towns. We'll diagnose your spring type, give you honest pricing over the phone if you describe what you're seeing, and get you back in your garage fast.
Frequently Asked Questions
How do I know if my garage door spring is broken? Your door won't open, feels stuck, or the opener makes a clicking sound without moving the door. Torsion springs snap with a loud bang. You'll hear it. Extension springs may fray or hang loose on the track.
Can I replace a garage door spring myself? No. Springs are under extreme tension and can cause serious injury if mishandled. The shaft can snap, metal can cut, and improper installation damages your opener. Professional replacement is required for safety.
How long do garage door springs last? Torsion springs last 7 to 9 years with normal use (about 3 to 5 cycles daily). Extension springs last 5 to 7 years. Frequency and maintenance affect lifespan significantly.
Why does one spring cost so much if I only have one broken? We recommend replacing both springs together because they age as a pair. Replacing one now means the other fails soon after, requiring another service call. One replacement handles both at once.
Will my garage door opener break if a spring snaps? Possibly. Openers aren't designed to lift a door without spring assistance. Forcing it can burn out the motor or strip the gear assembly. Stop using the door immediately if a spring breaks.