2026-06-25 7 min read
There are two main types of garage door springs: torsion and extension. Torsion springs sit above the door and twist to lift it; extension springs run along the sides and stretch. The type in your Montebello garage determines repair cost, lifespan, and whether you should attempt any work yourself. Spoiler: you shouldn't attempt either alone.
Torsion springs are the workhorses of most residential garage doors. They're mounted horizontally above the door opening, and they work by rotating (torquing) to counterbalance the door's weight as it opens and closes.
Here's what makes them different. A torsion spring stores energy through twisting motion, not stretching. When you open the door, the spring unwinds. When the door closes, it winds back up. This rotating action makes torsion springs incredibly efficient and precise. They typically last 7 to 9 years with normal use, which is longer than their extension counterparts.
The tradeoff? They're under extreme tension. A snapped spring on a torsion system can send metal shards flying. This is why professionals always wear safety glasses and use proper tools when handling them. If your garage door suddenly becomes heavy to open, or won't open at all, a broken torsion spring is likely the culprit.
Montebello's climate, with warm summers and occasional temperature swings, can actually extend spring life if your garage stays relatively climate-controlled. However, rust and corrosion still happen, especially in older homes.
Extension springs run along the sides of the door frame, one on each side. Instead of twisting, they stretch and contract as the door moves. They're gentler on the system overall, but they require safety cables running through them to contain broken pieces.
Extension springs are less common in newer installations but appear frequently in older Montebello homes. They're cheaper upfront and take up less space, which is why some builders favored them. The downside is they wear faster, typically lasting 5 to 7 years.
When an extension spring snaps, the safety cable should catch the spring, preventing it from rocketing across your garage. That's the theory. In practice, cables can fail too, so you should never rely solely on a broken extension spring to stay put.
**Need garage door springs in Montebello today?** Call (323) 894-0796 for same-day service and honest estimates.
Open your garage door manually (after disconnecting the opener) and look up. See a large coiled metal rod running horizontally above the door? That's torsion. See springs on both sides of the frame stretching along the tracks? That's extension.
Not sure? That's fine. When you schedule a free quote with Garage Door Montebello, our technicians will identify your system and explain exactly what needs attention. Many homeowners don't realize they can get a same-day estimate without obligation.
Torsion springs typically cost more to replace than extension springs, but they last longer and work more reliably. A torsion spring replacement in the Montebello area runs between $200 and $400 per spring, depending on your door's weight. Extension springs are cheaper upfront, around $150 to $250 each, but you'll replace them sooner.
The labor is the same either way. What matters is hiring someone who knows the difference and won't cut corners. We've seen DIY attempts that turned a $300 repair into a $1,500 door replacement. Not worth it.
If you're considering a full garage door opener upgrade, now's a good time to address spring issues together. A new opener won't help if your springs are failing.
A single snapped torsion spring usually means replace it. Both springs wear at the same rate, so if one breaks, the other is close behind. Replacing both at once costs more upfront but saves you a second service call in six months.
For extension springs with broken safety cables, replace the cable immediately. It's cheaper than replacing the whole spring, but only a professional should do this work.
For more on identifying when springs need attention, check out our guide on warning signs your garage door needs immediate repair.
Garage door springs store enough energy to kill. A torsion spring under full tension can snap and cause serious injury or death. Extension springs can do the same. Even experienced mechanics use specialized tools and techniques.
We've covered this in depth in our garage door installation safety guide, but the core principle applies here too: some jobs require professional equipment and training.
Your springs are the foundation of your door system. Get them right, and everything else works smoothly for years. Ignore them or cut corners, and you're looking at expensive failures and safety risks.
Don't wait for a complete failure. If your door feels heavy, makes new noises, or you notice signs of rust on the springs, call us for a same-day estimate at (323) 894-0796. We'll tell you exactly what's needed and what it costs, with no surprises.
How long do garage door springs really last? Torsion springs last 7 to 9 years on average. Extension springs typically wear out in 5 to 7 years. Frequency of use, climate, and maintenance all affect lifespan. Regular lubrication can add a year or two.
Can I replace just one spring? Technically yes, but not recommended. Both springs wear at the same rate. Replacing one leaves the other near failure. You'll likely need a second service call within months, doubling labor costs.
What does a snapped spring sound like? Usually a loud bang or crack. Some people describe it like a gunshot. If you hear this, stop using your door immediately and call a professional. Don't try to open or close it manually.
Why is spring replacement so expensive? The parts themselves are affordable. The cost comes from specialized equipment, safety protocols, and the danger involved. A professional needs insurance, training, and proper tools. That expertise costs money, but it's worth every dollar.
Do I need both springs replaced at the same time? Yes, in almost all cases. Springs are matched pairs and wear together. Replacing both ensures balanced operation and prevents premature failure of the newer spring due to uneven load distribution.