2026-08-16 7 min read
Here's what most homeowners don't realize about garage door springs in Granby: the replacement process is far more involved than unscrewing a bolt and installing a new part. Springs carry enormous tension. A snapped spring can injure you or damage your garage door beyond repair if you approach it wrong. Understanding what professional technicians actually do helps you avoid costly mistakes and know when to call for help.
Your garage door weighs 300 to 500 pounds. Two springs (torsion or extension style) support that entire load. They're wound so tightly that they hold energy equivalent to a loaded crossbow. When a spring breaks, that stored energy doesn't just disappear. It can snap apart metal drums, bend tracks, or cause the door to drop without warning.
Torsion springs sit above the door and rotate when opening and closing. Extension springs run along the sides and stretch outward. Both types wear out after 7 to 9 years of normal use, depending on how often your door cycles. Attempting replacement without the right tools, expertise, and safety equipment turns a routine repair into an emergency room visit.
Professional technicians use specialized equipment including spring winders, safety cables, and manual door supports. They measure tension precisely and balance both springs to ensure even door movement. Skipping these steps leads to misaligned doors, premature opener failure, and uneven wear patterns that shorten everything else's lifespan.
When you call Granby Garage Doors for spring replacement, here's exactly what happens during your appointment.
Inspection and Diagnosis. Our technician arrives and examines both springs carefully. We identify whether you have torsion or extension springs, measure their dimensions, and check for damage to cables, drums, and track hardware. This step determines the exact replacement cost and parts needed. Many homeowners assume they need "just a spring," but surrounding components often require replacement too.
Safety Setup. Before touching anything, we disconnect your garage door opener. We install manual supports and safety cables to hold the door in place. This prevents accidental drops while we work. The door stays firmly stationary throughout the entire process.
**Need garage door springs in Granby today?** Call (860) 650-1814. We cover same-day service across the area and surrounding towns.
Spring Removal and Installation. Using a spring winding tool, we carefully unwind the old spring from its bracket. For torsion springs, this means releasing tension from the center shaft while keeping everything balanced. We remove the old spring, inspect the shaft and drums for wear, and install the new spring with precise tension calculations. Extension springs follow a similar process along the side tracks.
Balancing and Testing. This is critical. Springs must match in tension and strength. If one spring carries more load than the other, the door rises crookedly, stressing the opener and track system. We test the door manually first to confirm it moves smoothly. Then we reconnect the opener and run several opening and closing cycles to verify proper function.
Spring replacement cost in Granby typically ranges from $250 to $600 per spring, depending on type and door size. Find our detailed pricing breakdown here. Labor accounts for roughly half the total cost. Quality springs last longer and prevent repeat failures. Cheap aftermarket springs save money upfront but fail sooner, creating more service calls and headaches.
We also recommend inspecting cables, rollers, and weatherstripping during spring replacement. If your door is over 10 years old, addressing these items now prevents separate emergency calls later. Schedule a free estimate and our technician will identify everything needing attention.
If you hear a loud bang from your garage, your door won't open, or you spot a broken spring dangling, stop using your door immediately. Don't try to force it up or assume the opener can handle a broken spring. Call us right away for same-day service. A snapped spring is one of the few garage door problems that qualifies as a true emergency.
Even if your door still operates with a broken spring, the added strain on your opener will cause motor burnout within weeks. Catching warning signs early keeps repair costs manageable. We cover five warning signs before springs snap in detail on our blog.
Spring replacement isn't a weekend project. Professionals have the training, tools, and insurance to handle the inherent dangers. Granby Garage Doors has replaced hundreds of springs in our community, and we know every scenario that can complicate the job.
Don't guess whether your springs need replacement or attempt a DIY fix. Call (860) 650-1814 and describe what you're seeing. We'll walk you through options, provide an honest assessment, and schedule your service quickly. Most calls get same-day or next-day appointments.
Contact us now for a free estimate. Your garage door's safety depends on springs working correctly.
How long does spring replacement take? Most torsion or extension spring replacements take 1 to 2 hours, including inspection, removal, installation, and testing. Complex situations involving damaged hardware may add 30 minutes to an hour.
Can I replace one spring if only one is broken? We recommend replacing both springs simultaneously, even if only one snapped. Springs age together, and replacing one creates imbalanced tension, stressing the door and opener. You'll avoid a second service call by doing both at once.
What's the difference between torsion and extension springs? Torsion springs wind around a central shaft above the door and rotate. Extension springs stretch along side tracks. Torsion springs are safer, more durable, and last longer, though they cost slightly more upfront.
How often do garage door springs need replacement? Springs typically last 7 to 9 years with normal use. Frequent opening and closing cycles shorten lifespan. We inspect springs during routine maintenance to catch wear before failure.
Is spring replacement covered by homeowners insurance? Most policies don't cover routine wear and tear or component failure. Some plans cover damage from sudden accidents. Contact your insurance agent to confirm coverage before calling for service.