2026-07-27 7 min read A2Z Garage Doors
A customer called last Tuesday asking why his garage door opener kept straining and making weird noises. After 15 years on the trucks, I knew exactly what he'd find: a failing spring. But here's what surprised him: there isn't just one kind of garage door spring. Understanding the difference between torsion and extension springs in Los Altos Hills can save you hundreds in repair costs and keep your door running smoothly for years.
Your garage door weighs between 300 and 400 pounds. Without springs, your opener would burn out in weeks trying to lift all that weight. Springs counterbalance the door, making it feel almost weightless when you push the button. They're the hardest working component in your entire garage system, and they wear out faster than most homeowners realize. On average, springs last 7 to 9 years with regular use. See our guide on weather stripping & seals in los altos hills: stop drafts before winter.
Two main types handle this job: torsion springs and extension springs. Each works differently, fails differently, and costs differently to replace.
Torsion springs sit horizontally above your garage door opening. They work by twisting or winding up, storing energy like a coiled spring. When your door opens, the torsion spring unwinds and helps lift the weight. When it closes, the spring winds back up. Read about garage door stuck after hours in los altos hills? here.
Most homes in Los Altos Hills that were built in the last 20 years use torsion springs. They're the industry standard because they last longer, provide smoother operation, and are safer than their counterparts. You'll notice a torsion spring system looks cleaner too, with minimal visible hardware.
The downside? Torsion spring replacement costs more upfront. A single torsion spring typically runs $150 to $300, and many doors need two springs working in tandem. But that longer lifespan makes it worth the investment.
Extension springs run along both sides of your garage door opening, parallel to the tracks. Instead of twisting, they stretch and contract like a typical coil spring. When your door rises, the springs extend. When it lowers, they compress back.
Older Los Altos Hills homes often have extension springs. They're cheaper to buy and install initially, which is why builders favored them decades ago. Individual extension springs cost $75 to $150 per spring, and most doors use two.
The catch: extension springs wear out faster, usually around 5 to 7 years with regular use. They also require safety cables running through them. If an extension spring snaps, the cable prevents it from flying across your garage. That's a real safety feature. Without it, a snapped spring becomes a dangerous projectile.
Walk into your garage and look above the door. Do you see a horizontal metal shaft with springs wrapped around it? That's torsion. Do you see springs running vertically along the tracks on both sides? That's extension.
Not sure? Schedule a free quote and we'll assess your setup and explain exactly what you have.
**Need garage door springs in Los Altos Hills today?** Call (510) 591-5068. We cover same-day service across the area.
Replacement cost depends on which type you have and whether one or both springs need work. A single extension spring replacement might run $200 to $400 total, labor included. A torsion spring replacement typically costs $300 to $600 for both springs and installation.
This connects directly to our comprehensive breakdown of garage door spring repair costs in Los Altos Hills, where we walk through pricing in detail.
The real question isn't which costs less to replace. It's which will save you money long-term. Torsion springs cost more upfront but last longer and perform better. Extension springs are cheaper initially but fail sooner and require more maintenance.
If your door is over 8 years old and you notice it's slower to open, making creaking sounds, or feels heavier than usual, your springs are wearing out. Don't wait for a complete failure. A snapped spring leaves your door stuck and your opener working overtime, which creates additional damage.
I've seen too many DIY attempts on spring replacement. Springs are under massive tension. A mistake can cause serious injury. We've handled emergency calls where homeowners got hurt trying to adjust or replace springs themselves. Our maintenance guide walks through what you can safely handle yourself versus what needs professional hands.
Visit our garage door springs service page to see what professional replacement includes. We handle the inspection, ordering correctly sized springs for your door, safe removal of old springs, proper installation, and testing to ensure everything balances correctly.
Whether you have torsion or extension springs, they will eventually fail. The question is whether you replace them before they snap unexpectedly or wait for an emergency. Torsion springs last longer and operate more smoothly. Extension springs cost less upfront but require replacement sooner.
Call us at (510) 591-5068 to discuss which type you have and what replacement looks like for your home. We offer same-day estimates and can often schedule replacement within 24 hours. Don't let a worn spring turn into an expensive emergency.
How long do garage door springs last? Torsion springs typically last 7 to 9 years with standard residential use. Extension springs wear faster, lasting 5 to 7 years. Lifespan depends on door weight, frequency of use, and maintenance.
Can I replace just one spring? It's best to replace both springs at the same time, even if only one has failed. Springs wear together, and replacing only one creates imbalance. This puts extra strain on the remaining spring.
What's the danger of a snapped spring? A snapped extension spring can whip across your garage if the safety cable fails. A snapped torsion spring won't cause injury but leaves your door stuck and your opener struggling. Either way, repair is urgent.
How much does spring replacement cost near me? In Los Altos Hills, expect $200 to $600 depending on spring type and whether you're replacing one or both. Torsion springs cost more but last longer. Get a free estimate before committing.
Do I need professional help to replace springs? Yes. Springs are under extreme tension and improper installation causes injury or equipment damage. Professional technicians have the tools, experience, and insurance to handle replacement safely.