2026-07-24 7 min read
Garage door springs come in two main types: torsion and extension. Torsion springs sit above the door and wind up to lift weight. Extension springs run along the sides and stretch to pull the door open. Knowing which one you have is critical because they fail differently, cost different amounts to replace, and carry different safety risks. The wrong repair approach can turn a minor issue into a catastrophic one.
I've responded to too many emergency calls from homeowners who didn't realize their spring type until the door crashed or wouldn't open at all. Let's cut through the confusion so you understand what's keeping your garage door balanced and safe.
Torsion springs are the safer, more durable choice. They mount horizontally on a steel shaft above your door opening. When you open the garage door, the spring winds tighter, storing mechanical energy. As you close it, that stored energy unwinds to help lower the door smoothly.
Here's what makes them special: because the spring is wound, it distributes force more evenly across the system. Your garage door opener doesn't have to work as hard. A typical torsion spring lasts 7 to 9 years with average use (roughly 3 to 5 cycles per day). When one fails, the door becomes extremely heavy and difficult or impossible to open manually.
Torsion springs are more expensive upfront but cost less over time because they last longer and require fewer replacements. They're also quieter and safer in homes with kids or pets because the spring mechanism is enclosed above the door.
Extension springs do the opposite job. They mount on either side of the door along the horizontal tracks. When the door opens, these springs stretch. When it closes, they contract to help pull the door back down.
Extension springs are simpler and cheaper to install initially, which is why some older homes and budget installations use them. The downside: they wear faster, typically lasting 4 to 7 years. They also create more noise and vibration because they're exposed to temperature swings and weather exposure on the side tracks.
Most importantly, extension springs are a safety concern. When one snaps, the other side may not hold the weight evenly, causing the door to tilt or drop suddenly. That's why building codes now require safety cables running through each spring to catch it if it snaps. Even with cables, a snapped extension spring means your door won't operate safely until it's repaired.
If you're unsure whether you have extension springs and a cable hasn't been installed, stop using your door and contact us immediately. An unprotected snapped spring is a serious hazard.
Look above your garage door. Do you see a horizontal spring wound around a steel rod? That's torsion. See two springs running left and right along the tracks? Those are extension springs.
Never touch the springs directly. Even a broken spring is under extreme tension and can cause serious injury. I've treated homeowners who tried a DIY inspection and got caught.
If you need help identifying your setup or have concerns about spring condition, we offer free estimates for garage door springs in Douglas. A technician can assess your springs safely and let you know exactly what you're working with.
**Need garage door springs in Douglas today?** Call (508) 603-8318. we cover same-day service across the area.
The cost to replace garage door springs depends on several variables. Torsion springs typically run $200 to $400 per spring, plus labor. Extension springs cost $150 to $250 per spring. Labor charges vary, but most technicians charge $150 to $300 per hour for spring work.
If both springs need replacing (recommended for even wear), budget accordingly. A torsion spring replacement might total $500 to $900 with labor. Extension springs might run $400 to $700. Emergency or same-day service adds 25 to 50 percent to your cost.
We've covered spring replacement costs in detail in our guide to spring repair versus replacement and what it costs in Douglas. That post walks through scenarios where repair makes sense versus when replacement is your only option.
Springs fail because they're designed to cycle. Every time you open and close your door, the spring winds or stretches. After thousands of cycles, the metal fatigues and breaks. Rust accelerates failure. Massachusetts winters with salt air near the coast (if you're in that region) and temperature swings make springs wear faster.
Lack of lubrication also shortens spring life. A dry spring corrodes and stiffens, increasing stress during operation. Proper maintenance adds years to spring longevity. If you've neglected spring care, inspect your door soon. Don't wait for a failure.
For more on recognizing when springs are failing, check our post on garage door spring warning signs every Douglas homeowner should know.
Never attempt to repair or replace garage door springs yourself. The tension in these springs is extreme. A slip can cause serious lacerations or fractures. Professional technicians use specialized tools, have liability insurance, and know how to work safely.
If your door won't open, opens slowly, or makes grinding sounds, call us. Schedule a free quote or reach out at (508) 603-8318 to describe what you're experiencing. We'll diagnose the issue and let you know your options before any work begins.
How long do garage door springs last? Torsion springs typically last 7 to 9 years with normal use. Extension springs last 4 to 7 years. Lifespan depends on usage frequency, maintenance, and climate conditions in Douglas.
Can I replace just one spring if the other is still working? It's not recommended. When one spring fails, the other has already cycled the same number of times and is likely near failure too. Replacing both ensures balanced operation and prevents a second failure soon after.
What's the difference in noise between torsion and extension springs? Torsion springs operate quietly because they're enclosed above the door. Extension springs are louder and more prone to vibration because they're exposed on the side tracks and can rattle against the hardware.
Is a snapped spring an emergency? Yes. A snapped spring means your door may not open safely or could drop suddenly. Stop using the door and call for same-day repair. We offer emergency service in Douglas to address this immediately.
Why is my new spring already making noise? New springs need lubrication to operate smoothly. If a technician didn't apply lubricant after installation, the spring is corroding and drying out. Contact them for maintenance or call us for a service inspection.