Garage Door Springs in San Anselmo: Torsion vs. Extension and When to Replace
2026-07-17 7 min read A2Z Garage Doors
Most people don't think about their garage door until it stops working. When that happens, nine times out of ten, a snapped spring is the culprit. Garage door springs in San Anselmo are critical components that lift a 300 to 400 pound door with ease. When they wear out, your door becomes immobilized. Understanding which type you have, why they fail, and how to get them replaced safely is essential knowledge for any homeowner.
Two Spring Types: Know What You Have
Your garage door uses one of two spring systems: torsion or extension. Torsion springs sit horizontally above the door opening and twist to lift the weight. Extension springs run parallel to the tracks on either side and stretch to provide lift. Torsion springs are more durable and common in newer homes. Extension springs are less expensive upfront but wear out faster because they rely on pulleys and cables that can fray.
Torsion springs typically last 7 to 9 years with normal use. That's roughly 10,000 to 15,000 cycles. Extension springs often last only 4 to 6 years. If you've had your door for more than five years and haven't replaced the springs, you're living on borrowed time.
The difference matters because replacing them requires different tools and expertise. A snapped torsion spring creates a loud bang and leaves your door dead weight. A broken extension spring typically allows the door to descend unevenly or jam in the tracks. Either way, you need professional help fast.
Why Springs Fail: It's Not Random
Springs fail because of metal fatigue. Every time you open and close your door, the spring stretches or twists slightly. Over thousands of cycles, microscopic cracks form in the steel. Eventually, the metal fractures completely. Cold weather accelerates this process. Here in the Bay Area and Marin County, winter dampness and temperature swings stress metal components faster than in drier climates.
Rust also plays a role. Moisture seeping into the spring mechanism causes oxidation, which weakens the steel from the inside out. Poor maintenance compounds the problem. Springs that aren't lubricated regularly wear unevenly and fail sooner.
**Need garage door springs in San Anselmo today?** Call 510-588-4055. We cover same-day service across the area.
The Cost and Repair Process
A single torsion spring replacement costs between $150 and $300 per spring, plus labor. Extension springs run $100 to $200 each. Most doors have two springs, so budget accordingly. If both springs have failed, replacing just one leaves you vulnerable because the remaining spring will now carry double the load and fail within months.
This is where an honest estimate matters. We always recommend replacing both springs at the same time, even if only one is visibly broken. It saves money in the long run and prevents a second emergency call.
The actual replacement takes two to three hours for a professional. We carefully wind or unwind tension, disconnect cables, remove the old spring, and install new hardware. This work requires specialized tools and knowledge. One slip can result in serious injury. Never attempt this yourself.
For pricing details and what factors affect your garage door springs in San Anselmo, check our cost breakdown for spring repair and replacement.
When to Call for Same-Day Service
If your door won't open, makes grinding noises, or descends unevenly, a spring issue is likely. Don't force the door opener. That can damage the motor. Instead, schedule a free quote or call us at 510-588-4055 to arrange a same-day inspection.
We also recommend regular garage door safety inspections to catch wear before springs fail. A technician can spot fraying cables, rust buildup, and weakening springs during a routine check. Catching problems early prevents breakdowns and extends the life of your entire system.
For homeowners managing a commercial property, spring maintenance is even more critical. See our guide on commercial garage door maintenance to understand why regular care saves money.
Taking Action Now
Spring failure isn't a slow decline. It's sudden. One day your door works fine, the next day it doesn't. The best defense is knowing the age of your springs and scheduling replacement before they snap. If you're uncertain about your door's condition, we offer free inspections. We'll tell you exactly what you have, how much longer it will last, and what replacement costs.
Call Garage Door San Bruno at 510-588-4055 today. We're ready to handle your spring repair with the precision and care it deserves.
Frequently Asked Questions
How do I know if my spring is broken? A broken spring typically causes your door to open slowly, stop mid-cycle, or refuse to open at all. You may also hear a loud snapping sound. Never force the opener. Contact a professional immediately to avoid further damage or injury.
Can I replace just one spring? Technically yes, but both springs wear at similar rates. Replacing only one leaves the other to fail within months, creating another emergency. We recommend replacing both springs together for safety and cost efficiency.
How long does spring replacement take? A professional can replace both springs in two to three hours. The exact time depends on spring type and door complexity. We often complete same-day service in San Anselmo.
What's the difference between torsion and extension springs? Torsion springs twist horizontally above the door and last 7 to 9 years. Extension springs stretch along the tracks and typically last 4 to 6 years. Torsion springs are safer and more durable for most applications.
Why do springs fail in winter? Cold temperatures make metal brittle and more prone to cracking. Combined with moisture and salt air common in the Bay Area, winter accelerates rust and fatigue, making spring failure more likely during colder months.