Torsion vs. Extension Springs in Pacifica: Which Does Your Door Need?
2026-08-01 7 min read A2Z Garage Doors
A customer called last Tuesday asking, "Why does my garage door spring look different from my neighbor's?" After fifteen years running Garage Door Pacifica, I hear this weekly. The answer is simple: most homes use one of two spring types, and knowing which one you have saves money and headaches. Torsion springs and extension springs both do the same job, but they work differently, fail differently, and cost differently to replace. This guide shows you what's what.
How Torsion Springs Work
Torsion springs sit horizontally above your garage door opening. They twist (or torque) as your door opens and closes, storing energy like a wound-up clock spring. This twisting motion lifts most of the door's weight.
One major advantage: torsion springs last longer. Most torsion springs give you 7 to 9 years of reliable service. They're also safer because they don't snap violently toward you if they fail. The spring stays contained within the shaft and housing.
Torsion systems use a pulley and cable setup. When the spring winds and unwinds, it turns a shaft that powers the door's movement. You'll see one or two springs depending on door size and weight. Heavier doors (like double-wide openings in Pacifica homes) often need dual springs for balance.
The downside: torsion springs cost more to replace. Labor is higher because setup requires precision and special tools. An imbalanced torsion system can damage your opener quickly.
How Extension Springs Work
Extension springs run vertically along both sides of your garage door opening. They stretch (or extend) as the door closes, storing energy like a rubber band pulled tight. When released, that stored tension helps lift the door.
Extension springs are cheaper upfront and simpler to install. You'll typically find them on older homes or budget installations. They work fine for lightweight doors.
Here's the catch: extension springs fail faster. Most last only 4 to 7 years before snapping. When a snapped spring happens, the door drops suddenly. That's dangerous. Safety cables run through the center of each spring to prevent the spring from flying across your garage if it breaks, but the door still falls hard.
Extension springs also require more maintenance. The pulleys and cables wear faster because of the repeated stretching motion.
Identifying Your Spring Type
Walk into your garage and look up. If you see a horizontal spring above the door opening, you have torsion. If springs run vertically on each side, you have extension springs.
Don't touch the springs themselves. They're under extreme tension and can cause serious injury.
**Need garage door springs in Pacifica today?** Call 626-762-5823. we cover same-day service across the area.
Cost and Replacement Differences
Torsion spring replacement typically runs higher because the job demands precision. Extension spring replacement is cheaper but happens more often.
For an honest estimate in Pacifica, get a same-day estimate from our team. We'll identify your spring type and give you a fair price with no surprises.
If you're deciding between repair and replacement, that answer depends on your spring's age and condition. We've written about repairing versus replacing garage door springs in detail, but the short version: springs over 8 years old should be replaced, not repaired.
Why This Matters for Coastal Pacifica
Pacifica's marine air accelerates rust on metal springs. Salt spray corrodes both torsion and extension springs faster than inland areas. We recommend checking springs every 6 months here rather than yearly.
Our coastal maintenance guide covers seasonal care specific to your location. Springs near the ocean need extra attention.
What to Do If Your Spring Snaps
A snapped spring means your garage door won't open. Don't force it. Forcing a door with a broken spring damages the opener and cables.
Call us immediately. We handle emergency spring replacement and can usually arrive same-day across Pacifica and nearby neighborhoods. Check our full service offerings to see what's available in your area.
Most homeowners don't realize that a snapped spring is also a safety issue. The door becomes a hazard. Kids and pets shouldn't be near a garage with a broken spring until it's fixed.
Next Steps
If your springs are approaching 7 to 9 years old (torsion) or 4 to 7 years old (extension), get an inspection now. Small issues caught early cost far less than emergency replacements.
We offer free inspections in Pacifica. No obligation, no sales pressure. Schedule your free quote today or call 626-762-5823.
Your garage door springs are too important to ignore. Replace them before they fail, and you'll avoid the stress and cost of an emergency breakdown.
Frequently Asked Questions
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. Coastal areas like Pacifica see shorter lifespans due to salt corrosion. Frequency of use and maintenance affect longevity.
Can I replace a garage door spring myself? No. Springs are under 200+ pounds of tension and cause serious injury or death if mishandled. Professional replacement is essential for safety and proper installation. Always hire a trained technician.
What's the difference in cost between torsion and extension springs? Extension springs cost less upfront (typically $150 to $300 installed). Torsion springs cost more (typically $300 to $500 installed) but last longer and are safer, making them better long term.
Why did my garage door spring snap without warning? Springs weaken over time from repeated cycles and corrosion. Rust weakens the metal gradually. You may not see signs until it fails suddenly. Regular inspections catch wear before failure happens.
Do I need to replace both springs if one snaps? Yes. If one spring fails, the other is usually near the end of its life too. Replacing both ensures balanced performance and prevents a second failure weeks later.