Garage Door Springs in Mill City: Torsion vs. Extension (And Which Fails First)
2026-09-02
Most people don't think about their garage door until it stops working. And when it does, the problem is usually one thing: a snapped spring. But not all springs are created equal. Your garage door has either a torsion spring or extension springs, and knowing which one you have matters when it comes to cost, safety, and how quickly we can get you back in business.
Torsion Springs: The Heavy Lifters
Torsion springs sit above your garage door opening, running horizontally along a metal rod. They work by twisting and storing energy, then releasing that energy to lift your door. Think of them like a wound-up clock spring, except this one weighs 400 to 500 pounds of tension.
Most modern homes in Mill City use torsion springs because they're more durable and last longer than their counterparts. A quality torsion spring typically lasts 7 to 9 years with normal use, which translates to roughly 10,000 to 15,000 cycles (one cycle = one full open and close).
The downside? When a torsion spring fails, your entire door becomes impossible to lift manually. The tension is gone. You cannot open it without a working spring, and you definitely should not try. If you need immediate help, get a same-day estimate from Garage Door Mill City.
Extension Springs: The Backup System
Extension springs run vertically along both sides of your door opening. They stretch and contract to help lift the weight. Think of them like the springs inside a screen door, except much stronger and more numerous.
Homes with extension springs usually have two springs, one on each side. They tend to fail faster than torsion springs, sometimes wearing out in 5 to 7 years. When one snaps, you'll often hear a loud bang. The door may still move, but it will be unbalanced and harder to operate.
Extension springs are less expensive to replace individually, but because they wear unevenly, we recommend replacing both at the same time. Learn why your springs snapped and what it costs to fix the problem properly.
**Need garage door springs in Mill City today?** Call 1-971-459-3820. we cover same-day service across the area.
How to Tell Which Type You Have
Stand in your garage and look above the door. Do you see a horizontal metal rod with a coiled spring wrapped around it? That is torsion. Do you see springs running up and down on either side? Those are extension springs.
If you cannot safely see or reach the springs, do not attempt to inspect them yourself. Spring systems are under extreme tension. A broken spring or damaged cable can cause serious injury.
Why One Fails Before the Other
Torsion springs fail from repeated use and metal fatigue. The constant twisting eventually weakens the steel. Extension springs fail because they work harder on one side than the other, especially if your door is not perfectly balanced.
Poor maintenance accelerates failure in both types. Rust, dirt, and lack of lubrication make springs wear out faster. A simple tune-up that stops emergency calls includes lubricating springs every six months and checking for rust or visible wear.
Cost and Timing Matter
Torsion spring replacement typically costs more than extension springs because the work is more specialized and requires precise tension adjustments. However, torsion springs last longer, so the overall cost per year is often lower.
When you call us for an estimate, we assess the age of your springs, their condition, and the type of door you have. We can often schedule service the same day or within 24 hours. Most repairs take between one and two hours.
Why DIY Is Not an Option
Do not attempt to replace garage door springs yourself. This is not a light bulb change. Springs under tension can cause serious injury or death if they slip or break during installation. We have seen hand injuries, facial lacerations, and worse from homeowners who tried to save money.
Let a licensed technician handle it. We have the tools, the training, and the insurance to do it safely.
Your garage door springs are critical safety components. If you suspect a problem, call us right away. Contact Garage Door Mill City for a free quote and get back to your normal routine.
Frequently Asked Questions
How long do garage door springs last? Torsion springs typically last 7 to 9 years, while extension springs last 5 to 7 years. Lifespan depends on usage, maintenance, and climate. Regular lubrication and inspections extend the life of both types.
Can I open my garage door if the spring is broken? No. A broken torsion spring makes the door impossible to lift manually. A broken extension spring may allow movement, but it will be unbalanced and unsafe. Do not force it. Call for professional help.
What does a snapped spring sound like? A loud bang or crack, sometimes followed by the door dropping or stopping mid-cycle. Extension springs often snap with an audible pop. Torsion springs fail more quietly but leave your door completely stuck.
How much does spring replacement cost? Extension spring replacement ranges from $200 to $400 per spring. Torsion spring replacement typically costs $300 to $600 depending on the door weight and spring quality. Get an exact quote by calling 1-971-459-3820.
Should I replace both springs even if only one broke? Yes, for extension springs. Replacing both at once ensures balanced operation and prevents the second spring from failing weeks later. Torsion springs are single units, so you replace the one that failed.