2026-07-25 7 min read
Here's what most homeowners don't realize about garage door springs: you almost certainly have one of two types holding up a 300 to 400 pound door, and each one fails differently. If you've never heard of torsion versus extension springs, you're not alone. But understanding the difference could save you from a dangerous repair mistake or worse, a catastrophic failure that injures someone in your family.
Your garage door springs are the hardest-working component in your entire garage system. They counterbalance the weight of the door so your opener motor doesn't have to lift 400 pounds solo. Without them, your garage door opener would burn out in weeks, or worse, the door would crash down with crushing force.
Springs are under extreme tension. Constant cycling (opening and closing) gradually weakens the metal. Most residential garage door springs last 7 to 9 years with normal use (about 10,000 cycles). That's why a snapped spring isn't just inconvenient; it's a safety hazard that demands professional attention.
Extension springs run horizontally above your door tracks, one on each side. They stretch as the door closes and contract as it opens. You'll see them coiled tightly, often with cables running through them for safety. If an extension spring snaps, the cable usually catches it, preventing it from whipping across your garage at dangerous speeds.
Torsion springs mount horizontally above the door opening, perpendicular to the door itself. They twist (torsion) rather than stretch. One snapped torsion spring means your door becomes lopsided and extremely difficult or impossible to operate safely. These springs are more durable and last longer, but they're more complex to replace.
Most modern homes in Glendale and the surrounding areas use torsion springs because they're safer and more reliable for heavier doors. However, older homes often have extension springs, which some homeowners still maintain today.
**Need garage door springs in Glendale today?** Call (541) 995-7374. We cover same-day service across the area and surrounding communities.
I've seen homeowners attempt DIY spring replacement, and it almost always ends badly. Springs are under 200 to 400 pounds of tension. When you release that tension incorrectly, the spring can unwind violently, causing serious lacerations, broken bones, or eye injuries.
Professional technicians use specialized winding bars and safety equipment. We also know how to identify whether you need one spring or two, and whether your door should be balanced differently based on age and wear patterns. For a detailed breakdown of what affects your repair bill, see our guide on garage door repair costs in Glendale and what triggers surprise bills.
A single extension spring replacement typically runs $150 to $300. Torsion springs cost $200 to $400 per spring, depending on the door size and spring quality. Labor adds another $150 to $250 on top of parts.
If both springs have failed (which often happens around the same time), you're looking at $400 to $800 total. Some homeowners try to replace just one spring and end up with an unbalanced door that wears unevenly. Getting an accurate estimate before work begins protects your wallet. Request a free estimate from Glendale Garage Doors and we'll explain exactly what your door needs.
A garage door that opens only partway or closes unevenly suggests one spring is weakening. You might hear a loud bang or crack when the door is in use, which usually means a spring has just snapped. If your door feels heavier than normal or jerks to one side, those are warning signs too.
Don't ignore these signals. A completely failed spring leaves you stuck and creates a safety risk for anyone trying to manually operate the door. The sooner you catch spring wear, the easier and cheaper the fix. For more on safety features that protect your family, check out our auto-reverse and photo eye safety guide.
When a spring snaps, you need someone who understands both spring types and can diagnose the right solution quickly. Whether you're in Glendale or nearby areas, a qualified technician will inspect your door balance, spring condition, and opener performance before quoting you a price.
Don't delay on spring repairs. A failed spring won't fix itself, and the longer you wait, the more stress falls on your opener and rollers. Schedule a free quote today and get peace of mind knowing your garage door is safe and balanced.
If you're curious about how your opener factors into the equation, we've also covered smart garage door technology and what actually works for modern setups.
Spring failure is one of the most common reasons homeowners call for emergency service. But it's also one of the most preventable with regular inspection and timely replacement. Call Glendale Garage Doors at (541) 995-7374 if you suspect spring trouble. We'll assess your door and explain exactly what's needed.
How do I know if my garage door spring is broken? A snapped spring usually produces a loud bang. After that, your door becomes difficult to open, feels heavier than normal, or won't open fully. One side of the door may hang lower than the other. Never force a broken spring door.
Can I replace just one spring if both are old? Technically yes, but it's not recommended. Both springs wear at the same rate. Replacing one leaves the other close to failure. Most professionals suggest replacing both at the same time to keep your door balanced and safe.
How long do garage door springs actually last? Residential springs typically last 7 to 9 years under normal use (about 10,000 cycles). Commercial doors with heavier use wear springs faster. Regular maintenance and lubrication can extend lifespan slightly.
Why is spring replacement so expensive? You're paying for specialized equipment, safety knowledge, and the technician's liability insurance. Springs are under extreme tension and improper removal causes injuries. Professional replacement is not a luxury; it's a necessity.
Should I replace my door if the springs are old? Not necessarily. If the door itself is in good condition and the springs are your only issue, replacement is usually the smart choice. Get an estimate for both spring replacement and door replacement costs to compare.