2026-07-08 7 min read
Here's what most homeowners don't realize about garage door springs: not all springs are created equal. Your garage door likely uses one of two types, and mixing them up or installing the wrong replacement can cost you time, money, and safety. After 15 years working on garages across Granite Falls and the surrounding Catawba County area, I've seen plenty of folks get this wrong.
The two main types are torsion springs and extension springs. Torsion springs sit above your door opening, running horizontally along a metal shaft. Extension springs hang on both sides of the door, running parallel to the tracks. They work completely differently, handle load differently, and fail differently. Understanding which one you have is step one to getting the right repair.
Torsion springs are the workhorses. They use rotational force to lift your door, and they're engineered to handle the full weight load with precision. When you open your door, the spring winds up and stores energy. When you close it, that energy releases and helps lower the door smoothly.
Most modern garage doors, especially heavier insulated models, use torsion springs. They last about 7 to 9 years with normal use, though that timeline depends on how many cycles your door goes through. A cycle is one full open and close. If you use your door 4 times a day, you're looking at roughly 1,500 cycles per year.
Torsion springs are safer because they're contained above the door. If one snaps, it doesn't whip across your garage. That said, they're also more complex to replace, which is why professional installation matters. If you're curious about what happens when one fails, we've covered snapped garage door springs in detail.
Extension springs work by stretching. They extend and contract as your door moves, providing counterbalance. Lighter doors and older installations often use these. They're cheaper upfront and simpler in design, but they require safety cables running through them. If an extension spring breaks, that cable catches it before it becomes a projectile.
Extension springs also last 7 to 9 years on average. However, they wear unevenly because one side often does more work than the other. This means you might need both replaced even if only one has snapped, especially if they're the same age.
**Need garage door springs in Granite Falls today?** Call (828) 944-8079. we cover same-day service across the area.
Walk into your garage and look above the door opening. If you see a horizontal metal shaft with a spring wound around it, you have torsion. If you see two springs hanging vertically on either side of the door, near the tracks, you have extension springs.
This matters because the cost and complexity differ. Torsion spring replacement typically runs higher than extension, but prices vary based on door weight, spring quality, and local labor rates. We provide free estimates for spring replacement to give you a clear picture before any work starts.
Both spring types operate under extreme tension. A torsion spring can unwind with force equivalent to a small car. Extension springs pull with hundreds of pounds of force. Attempting a DIY replacement is dangerous and often voids your opener warranty.
Our team at Granite Falls Garage Doors has the proper tools, experience, and safety protocols. We can diagnose which spring you need, provide an accurate cost estimate, and handle installation safely. Same-day service is available for most spring jobs in Granite Falls and nearby areas.
If you're also thinking about upgrading your door's insulation or opener while we're there, that's a smart move. Check out our guide on garage door insulation R-Value to see if an upgrade makes sense for your home.
Springs are critical to your door's safety and function. Don't guess or delay. A broken spring left unfixed stresses your opener and puts strain on other components.
Ready to get your springs inspected or replaced? Schedule a free quote with us or call (828) 944-8079. We'll identify your spring type, explain your options, and get you back to a working door fast.
How much does a garage door spring replacement cost in Granite Falls? Torsion spring replacement typically costs $200 to $400 per spring, while extension springs run $100 to $200 each. Most doors need one or both replaced. Labor, door weight, and spring quality affect the final price. Call for a free estimate.
Can I replace just one spring if the other is still working? With extension springs, both should be replaced together if they're the same age, since wear is uneven. Torsion springs can sometimes be replaced individually. Our team assesses your specific situation and recommends the safest, most cost-effective approach.
How long do garage door springs really last? Both torsion and extension springs typically last 7 to 9 years with normal use, measured in cycles. Heavier doors and frequent use wear springs faster. Annual maintenance can extend their life and catch issues early.
What's the difference in safety between the two types? Torsion springs are contained above the door and safer if they break. Extension springs require safety cables to catch them. Both types are dangerous to service yourself. Always hire a professional for installation or repair.
Why does my spring cost more than my neighbor's? Spring cost depends on door weight, spring wire gauge, and quality rating. Heavier insulated doors need stronger springs. Premium springs last longer but cost more upfront. We explain these factors during your free estimate.