Torsion vs. Extension Springs in Redondo Beach: Which Does Your Door Need?
2026-06-26 7 min read
Your garage door relies on springs to lift 300+ pounds with ease. But not all springs work the same way. The two main types in Redondo Beach homes are torsion springs and extension springs, and knowing which one you have matters for repairs, replacements, and safety. This guide cuts through the confusion so you can make the right call.
What Are Torsion Springs?
Torsion springs sit horizontally above your garage door opening. They work by twisting (or torquing) to store and release energy as your door moves up and down. When you open the door, the spring unwinds. When you close it, the spring winds back up. This rotational motion is what makes them "torsion" springs.
Most modern homes in Redondo Beach and the surrounding South Bay area use torsion springs. They're more durable, safer, and last longer than their counterparts. A properly maintained torsion spring lasts 7 to 9 years, though that timeline depends on how often you open and close your door.
The trade-off? If a torsion spring snaps, it typically requires professional replacement. The tension is significant, and the spring is under extreme load. DIY work here is dangerous and not worth the risk.
What Are Extension Springs?
Extension springs hang vertically on both sides of your garage door opening, typically above the horizontal tracks. They stretch and contract to provide lifting force. When the door opens, the springs extend. When it closes, they compress back to their original length.
Extension springs are cheaper upfront than torsion springs. You'll find them more often in older homes or budget installations. However, they don't last as long. Most extension springs need replacement every 5 to 7 years.
One advantage: extension springs have safety cables running through them. If one snaps, the cable catches the spring and prevents it from flying across your garage. With torsion springs, a snapped spring is a snapped spring, which is why we always recommend learning what to do when one snaps.
Key Differences at a Glance
Torsion springs handle the load more evenly and smoothly. Your door opens and closes with less jerking. Extension springs work harder because they have to stretch farther, which is why they wear out faster.
Cost matters too. A torsion spring replacement typically runs higher than an extension spring, but you're paying for longevity and fewer future repairs. If you're curious about the full breakdown, our guide to spring replacement costs and timing covers what to expect.
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How to Know Which Type You Have
Walk into your garage and look above the door. If you see a horizontal spring running the width of the opening, you have torsion springs. If you see two vertical springs on the left and right sides of the tracks, those are extension springs.
Still unsure? That's okay. We can help. Most homeowners don't need to know the technical details until something goes wrong. What matters is that when your door stops moving smoothly or you hear a loud bang, you have a reliable professional to call.
Why This Matters for Your Wallet
Understanding your spring type helps you ask smarter questions when getting a repair estimate. It also prepares you for what "normal" maintenance looks like. Torsion springs need less frequent attention. Extension springs benefit from more regular lubrication and inspection.
When you're ready to explore your full range of garage door services, knowing your spring type means we can give you an accurate quote without guessing. Same-day estimates and repairs are standard in Redondo Beach, so don't wait if you're hearing strange noises.
When to Call a Professional
If your door is slow to open, won't close all the way, or makes grinding sounds, a spring issue is likely. If a spring has actually snapped, your door won't budge. Don't force it. A snapped spring means the counterbalance is gone, and you risk damage to the opener or injury.
The safest move is to schedule a free quote and let us diagnose the problem. We'll tell you exactly what type of spring you have, how much life it has left, and what replacement costs. No surprises, no pressure.
Frequently Asked Questions
Can I replace a garage door spring myself? Not safely. Garage door springs are under extreme tension (up to 200 pounds of force per spring). A slip or miscalculation can cause serious injury. Professional replacement is the right choice for both torsion and extension springs.
How long do garage door springs last? Torsion springs typically last 7 to 9 years. Extension springs last 5 to 7 years. Frequency of use, humidity, and maintenance all affect lifespan. Homes near the coast (like Redondo Beach) may see shorter life due to salt air corrosion.
What does a snapped spring sound like? Most homeowners report a loud bang or crack, almost like a gunshot. Your door will stop moving immediately. You may also see a visible gap or separation in the spring if you look closely, though don't touch it.
Is it cheaper to replace just one spring or both? Springs wear together. If one snaps, the other is usually near the end of its life too. Replacing both at once costs more upfront but saves a second service call and prevents another failure weeks later.
How do I know if my springs need lubrication? Listen for squeaking during operation. If the door moves but sounds rough, a light spray of garage door lubricant on the springs (not the coils) often helps. For torsion springs, less lubrication is needed than extension springs.