2026-09-20 5 min read
A customer called last Tuesday morning. Their garage door was stuck halfway open, and they'd heard a sharp twang the night before. When I arrived in San Clemente, the diagnosis was immediate: a snapped extension spring on the right side. Extension springs are the silent workhorses of your garage door system, and when they fail, the door stops moving completely. This post covers what extension springs do, how to spot trouble early, and why waiting isn't an option.
Extension springs run along the sides of your garage door, stretching and contracting as the door moves. Unlike torsion springs, which twist around a shaft above the door, extension springs pull downward to counterbalance the door's weight. They work in pairs for safety, which means if one fails, the other is likely close behind. See our guide: Garage Door Springs in San Clemente.
Most extension springs last seven to nine years under normal use. That timeline depends on how often you open and close the door, local humidity (coastal San Clemente air accelerates rust), and whether you've kept the springs lubricated. A typical residential door might operate 1,500 times per year. That's 10,500 to 13,500 cycles before replacement becomes necessary.
When an extension spring snaps, your door won't budge. The opener can't lift the full weight alone. You'll be stuck, and a quick fix requires professional help. See our guide: Broken Garage Door Springs in San Clemente.
Don't wait for a complete failure. Watch for these red flags:
Uneven door movement. If one side rises faster than the other, one spring is weakening while its partner still has strength. This imbalance strains the opener and other components.
Visible gaps or separation. Extension springs should be tight against the cable. Gaps mean the spring has lost tension.
Rust or discoloration. Coastal humidity in San Clemente creates perfect conditions for rust. A rusty spring is a brittle spring. Rust weakens the metal and speeds up failure.
Loud creaking or grinding. This often signals a spring under extreme stress, ready to break. If you hear unusual noises, get a same-day inspection before the spring snaps completely.
Difficulty opening the door by hand. If the door feels heavier than usual and your opener struggles, a spring is losing its assist. Test by unplugging the opener and lifting manually (safely, with a partner). Excessive weight means spring trouble.
**Need garage door springs in San Clemente today?** Call 949-536-9635. We handle same-day replacement across the area and nearby communities.
Many homeowners don't realize their door has extension springs until one breaks. Some doors use torsion springs instead, which are mounted differently and fail differently. Extension springs are safer for DIY inspection but should never be replaced without professional help. The tension they hold is dangerous. A snapped spring can snap back violently, causing serious injury.
If you're curious about your system type and whether your springs might need service soon, learn the different spring types and their lifespans to understand what you're working with.
A single extension spring replacement costs less than an emergency call when both springs fail and your door is stuck. Ignoring warning signs means risking complete failure at the worst possible time. A broken spring also puts stress on your opener motor, which can lead to opener replacement down the line. That's a much larger bill.
Preventive maintenance costs far less than reactive emergency repair. An annual inspection catches rust, tension loss, and alignment issues before they become failures. Our spring repair service covers these checks and can extend your springs' life.
First, stop trying to open the door manually. You might damage the opener or the door frame. Don't force it.
Second, call a professional. Extension springs require specialized tools and knowledge. Improper replacement can leave your door unsafe.
Third, get a free estimate for repair costs. We'll inspect both springs (even if only one is visibly broken) and recommend replacement. It's always smarter to replace both at once since the second spring is likely near the end of its life anyway.
For detailed information on repair versus replacement decisions, read our guide on broken spring decisions.
Lubricate your springs and cables every three months with a silicone-based spray. Keep the door tracks clean of debris. Don't let rust sit. In coastal areas like San Clemente, salt air accelerates corrosion, so staying on top of maintenance is essential.
If your door is over ten years old and you've never replaced the springs, a professional inspection is overdue. Older springs are under constant stress and can fail without warning.
Your garage door springs are working every single day. Treat them with respect. When you spot warning signs, act fast. A snapped spring doesn't fix itself, and the longer you wait, the more expensive the job becomes.
Call Garage Door San Clemente at 949-536-9635 for a same-day assessment. We'll tell you exactly what your springs need and what it'll cost. No surprises, just honest work done right.
How long do extension springs last? Extension springs typically last seven to nine years with regular use. Coastal humidity, lack of lubrication, and frequent door cycles can shorten that lifespan. Rust accelerates failure significantly.
Can I replace an extension spring myself? No. Extension springs are under extreme tension and can cause serious injury or death if mishandled. Always hire a licensed professional for spring replacement.
What happens if one extension spring breaks? Your garage door will stop moving. The opener cannot lift the full door weight alone. The surviving spring will be under extra stress and will likely fail soon after.
Should I replace both springs even if only one broke? Yes. Since both springs age together and are near the same lifespan, replacing both at once prevents a second failure weeks later. It's more cost-effective long-term.
How much does extension spring replacement cost? Cost varies based on spring size, type, and whether you're replacing one or both. Call 949-536-9635 for a same-day estimate specific to your door.
- Why Your Garage Door Springs Are So Loud in San Clemente - Garage Door Springs in San Clemente: Types, Lifespan & When to Replace - Garage Door Repair Cost in San Clemente: What Homeowners Actually Pay - Every garage door service we offer - Garage door service in Anaheim, CA - Garage door service in Irvine, CA