2026-06-07 7 min read
After 15 years on the job, I've fielded every version of this question, and homeowners in Dunstable deserve straight answers. Garage door spring replacement typically costs between $150 and $400 per spring, depending on spring type, your door's weight, and labor rates in your area. Most residential doors need two springs, so budget $300 to $800 for parts and installation. The final number hinges on whether you need torsion or extension springs, and whether you're dealing with a snapped spring emergency or planning ahead.
Not all garage door springs are created equal. A torsion spring (the heavy-duty coil mounted above your door) costs more than an extension spring because it handles greater stress. Torsion springs run $200 to $400 each; extension springs typically fall between $150 and $250. Add labor, and you're looking at a full replacement job ranging from $300 to $800 total.
Your door's weight matters too. A standard single-car door is lighter than a double-car or insulated model. Heavier doors require stiffer springs with higher tension, which cost more to manufacture and take longer to install safely. A 16-foot double-car door with an insulated panel will naturally push costs higher than a basic 8-foot single unit.
Location and labor also shift the needle. Dunstable technicians typically charge $100 to $150 per hour for spring work. If you're calling for emergency service on a weekend or after hours, expect a service call fee on top of parts and labor.
**Need garage door springs in Dunstable today?** Call (978) 338-7441. We cover same-day service across the area.
Here's what surprises most homeowners: a snapped spring often triggers secondary damage. When one spring fails, the other side bears extra load and can fail shortly after. If you ignore a broken spring and keep using your door, the opener motor works overtime, the cables wear faster, and the rollers take a beating. That $350 spring replacement can balloon into a $600 or $700 job when you factor in cable and pulley repairs.
If you're wondering whether to repair or replace, check our detailed guide on repair versus replacement decisions. Springs last 7 to 9 years under normal use. If both are original and your door is over eight years old, replacing both at once saves money and hassle down the road.
I always tell customers the same thing: don't trust a quote over the phone. A technician needs to see your setup. We inspect spring type, measure door weight, check cable condition, and assess your opener's capacity. That's how we give you a real estimate, not a guess.
When you call for a quote, ask if the estimate includes both springs or just one. Ask whether they're using quality parts with a warranty. Cheap springs fail faster. A premium torsion spring from a reputable manufacturer might cost $50 more upfront but lasts longer and performs better.
Dunstable Garage Doors always provides written estimates before we touch anything. No surprises. No hidden fees. You know exactly what you're paying for before work begins.
I need to be blunt here: replacing garage door springs yourself is dangerous. Springs are under extreme tension. When they fail, they can snap with enough force to cause serious injury. Even professionals use specialized tools and follow strict safety procedures.
If you want to learn more about spring safety and maintenance, read our safety guide for homeowners. Understanding how springs work helps you recognize warning signs early, which saves money.
A snapped spring means your door won't open or close properly. If you're stuck in your garage or can't access it, that's an emergency. We offer emergency garage door service in Dunstable with same-day response times. Don't wait. Call us right away at (978) 338-7441.
Regular maintenance also prevents costly emergencies. Lubricate springs every six months, watch for unusual noises, and have a professional inspect them annually. Small issues caught early cost far less than emergency replacements.
Ready to move forward? Schedule a free quote and we'll give you an exact cost breakdown for your door. We'll explain your options and help you decide the best path forward.
Don't let a broken spring sideline you. Call (978) 338-7441 today or contact us online to book same-day service. We serve Dunstable and surrounding areas with fast, honest, professional work.
How long does spring replacement take? A standard spring replacement typically takes one to two hours. This includes inspection, spring removal, installation, and testing. Emergency calls or complex setups may take longer.
Do I need to replace both springs at once? Yes, we recommend it. Springs wear at similar rates. Replacing only one leaves the other undersized for the load, leading to premature failure and safety issues.
What's the difference between a snapped spring and a worn spring? A snapped spring breaks suddenly and stops your door cold. A worn spring loses tension gradually, making your opener work harder. Both require replacement, but worn springs give you time to plan.
Can a spring be repaired or must it be replaced? Springs cannot be repaired safely. They must be replaced. Attempting to fix a spring risks injury and further damage to your door system.
Why does emergency spring service cost more? Emergency calls outside standard hours include service fees and overtime labor rates. Calling during business hours for regular replacement saves 20 to 30 percent on labor costs.