Torsion vs Extension Springs in Los Altos: Which Type Do You Have?
2026-08-25 7 min read
In our years serving Los Altos, we've seen this problem again and again: homeowners don't know which type of garage door spring they have, and that confusion costs them time and money. The two main types are torsion springs and extension springs. Knowing the difference can help you understand repair costs, replacement timelines, and most importantly, safety risks.
Torsion Springs: The Heavy Lifters
Torsion springs sit horizontally above your garage door opening. They twist (or torque) to lift your door. Most modern homes in the Los Altos area use this system because it's smoother, quieter, and lasts longer than extension springs. See our guide on smart garage door technology in los altos: what actually works.
Here's what happens: when you open the door, the torsion spring winds up like a clock spring. That stored energy unwinds to counterbalance your door's weight. Most torsion springs last 7 to 9 years with regular use. When one snaps, your door becomes a 300 to 500 pound dead weight. You won't open it manually, and your opener will strain dangerously trying.
Extension Springs: The Older Alternative
Extension springs run along both sides of your garage door, parallel to the tracks. They stretch and compress to lift the door. Older Los Altos homes often still have these systems. Read about garage door openers in los altos: what you really need to know before buying.
Extension springs wear faster than torsion springs, typically lasting 5 to 7 years. They also create more noise and vibration. If one breaks, the other stays intact, so your door might still open unevenly. That imbalance puts stress on your opener and tracks. Safety cables run through extension springs to catch them if they snap, but those cables wear out too.
Why This Matters for Your Estimate
When you call for a same-day estimate, the technician needs to know which type you have because replacement costs differ significantly. Torsion spring replacement typically runs higher than extension spring work, but the labor and parts vary by your door's weight and spring configuration. If you're unsure, we recommend taking a photo of your garage door mechanism and contacting us with details.
**Need garage door springs in Los Altos today?** Call 510-591-4513. we cover same-day service across the area.
How to Identify Your Spring Type
Stand in your garage and look above the door. Do you see one or two springs running horizontally across the top? That's torsion. Do you see springs running vertically along the left and right tracks? That's extension.
Don't try to touch the springs. Even when your door is closed, these components store enormous tension. A snapped spring can cause serious injury. This is why we always recommend professional inspection and replacement.
The Danger of DIY Spring Work
We've treated injuries from spring failures that homeowners tried to handle themselves. If you're tempted to save money on spring replacement, read our detailed safety guide about why DIY is dangerous. A single mistake can result in a broken hand, crushed fingers, or worse.
The cost of a hospital visit far exceeds the cost of professional replacement. Our team at Garage Door Company Los Altos carries proper equipment, insurance, and experience to replace springs safely.
Spring Maintenance Extends Life
While springs eventually fail, proper maintenance can help you reach that 7 to 9 year mark without surprises. Regular lubrication reduces friction. Periodic inspection catches wear early. If you notice your door opening slower or hearing new sounds, that's often a sign springs are weakening.
Check out our maintenance guide to learn what homeowners can safely do themselves. Most maintenance tasks don't involve touching the springs directly.
When One Spring Fails, Replace Both
This seems counterintuitive, but if you have two torsion springs and one snaps, replace both. The surviving spring is the same age and wear level. Replacing just one creates an imbalance that stresses your door, tracks, and opener. The cost of doing it right once beats paying for emergency service again in six months.
Extension spring systems work slightly differently. If one breaks, the other may still function, but we recommend assessing both during any repair visit.
Getting a Same-Day Quote
Garage door spring problems don't wait for convenient timing. If your door won't open or you hear a loud bang from your garage, that's likely a snapped spring. Contact us to schedule a free quote and let our team diagnose which type you have and what replacement will cost.
Your safety and peace of mind matter more than saving a few dollars on labor. We're here to handle it right.
Ready to fix your garage door springs in Los Altos? Call 510-591-4513 or visit us online to get a same-day estimate. We serve all of Los Altos and nearby communities with emergency and routine spring replacement.
Frequently Asked Questions
Q: Can I open my garage door manually if the spring is broken? A: Not safely. A broken spring means your door's full weight isn't counterbalanced. Lifting it manually risks serious injury. Call a professional instead.
Q: How much does garage door spring replacement cost? A: Torsion spring replacement typically ranges from $200 to $400 per spring, depending on door weight and spring specifications. Extension springs usually cost less. Get a free estimate before committing.
Q: How long do garage door springs last? A: Torsion springs last 7 to 9 years; extension springs last 5 to 7 years. This assumes normal residential use and regular maintenance.
Q: What's that loud noise coming from my garage? A: A loud bang or snap often signals a snapped spring. Stop using your door and call for service immediately. Don't attempt to open it yourself.
Q: Should I replace both springs if only one breaks? A: Yes. Both springs are the same age and wear level. Replacing only one creates imbalance and leads to more repairs within months.