2026-07-02 7 min read
Your garage door relies on one of two spring types to lift and lower safely. Torsion springs twist to store energy and sit above the door. Extension springs stretch and sit on either side. The wrong replacement can create dangerous imbalances, failed openers, and injury risk. Here's what you need to know to make the right choice for your Chesterfield home.
Torsion springs are the heavy hitters of the garage door world. They twist horizontally above the door frame, storing mechanical energy through rotation. When you open your door, the spring unwinds to counterbalance the weight.
Most modern homes in Chesterfield use torsion springs because they're more durable, precise, and safer. A quality torsion spring lasts 7 to 9 years with normal use. They handle repeated cycles better than extension springs and distribute force more evenly across the door.
Here's the safety advantage: if a torsion spring snaps, the door typically doesn't fall. The spring loses power gradually. With extension springs, failure is often sudden and catastrophic. I've seen a snapped extension spring send a door crashing down with enough force to crush a car.
Torsion springs do cost more upfront. But they're a worthwhile investment if you want predictability and lower long-term maintenance. The initial estimate for a torsion replacement runs higher, but you'll spend less on repairs over the door's lifetime.
Extension springs hang vertically on each side of the door, one on the left and one on the right. When the door closes, these springs stretch to store energy. When you open it, they contract to help lift.
Older homes and some budget-conscious homeowners choose extension springs because the initial cost is lower. They work fine in light-duty applications. But they wear faster than torsion springs, typically lasting only 4 to 6 years.
The real risk with extension springs is catastrophic failure. When one snaps, the other side bears double the load. This creates violent imbalance. I've responded to emergencies where a broken extension spring sent a door slamming down mid-cycle. One homeowner had a child's bicycle destroyed. Another had their car's roof caved in.
If your door uses extension springs, install safety cables. These metal cables run through the center of each spring and contain it if it snaps. They won't stop the door from dropping, but they prevent the spring from flying across your garage at high speed.
Learn more about how springs work to understand the mechanics behind each type.
**Need garage door springs in Chesterfield today?** Call (978) 953-8704. we cover same-day service across the area.
Walk into your garage and look above the door. If you see a horizontal metal coil twisting above the center of the frame, you have a torsion spring. If you see two springs running vertically along the left and right tracks, those are extension springs.
Never try to replace springs yourself. The tension stored in these components can cause serious injury or death. A compressed spring can launch metal parts at speeds exceeding 60 miles per hour. I've seen fingers lost and eyes injured from DIY spring work gone wrong.
When you need a replacement, schedule a free quote with our team. We'll assess which type you have, measure the door weight, and provide an honest estimate. Same-day service is available for most snapped spring emergencies in Chesterfield and surrounding areas.
Torsion spring replacement typically costs $200 to $400 per spring, plus labor. Extension springs run $100 to $250 per spring, but you'll often need both replaced at the same time for safety. Our detailed pricing guide breaks down what affects your final bill.
Most spring replacements take 1 to 2 hours. If your door has been damaged by a snapped spring, repairs compound the cost. That's why early maintenance matters. Check our maintenance guide for seasonal inspection tips.
Winter is particularly hard on springs in Chesterfield. Cold metal becomes brittle and less flexible. If you haven't had your springs inspected since fall, now is the time. A $50 preventive inspection beats a $400 emergency repair in January.
If you're unsure which spring type your door has, or if you've noticed squeaking, slower opening, or uneven movement, contact us today. We serve Chesterfield and surrounding communities with same-day estimates and transparent pricing. Your safety is the priority, and springs are too dangerous to leave guessing.
Call (978) 953-8704 or get a same-day estimate online. We'll inspect both spring types and recommend the best solution for your home and budget.
Can I replace just one spring if only one is broken? No. Springs work in pairs and share the door's weight equally. Replacing only one creates severe imbalance, strains the opener, and stresses the remaining spring. Always replace both springs together for safety and longevity.
How do I know if my spring is about to fail? Listen for creaking or grinding noises. Watch for uneven door movement, slower opening, or the door feeling heavier than usual. These are warning signs. Have a technician inspect it before failure occurs.
Are torsion springs always better than extension springs? Torsion springs are safer, more durable, and more reliable. But if your door was built for extension springs, using torsion requires structural modifications. We'll recommend the right upgrade path during your inspection.
What happens if a spring breaks while the door is open? With torsion springs, the door stays suspended because tension releases gradually. With extension springs, the door may drop suddenly. Safety cables help, but the door will still fall. Never stand under a broken spring scenario.
How often should springs be inspected? Annually, ideally before winter. Chesterfield's cold weather accelerates wear. We recommend inspection every 12 months as part of routine maintenance to catch problems early.