2026-08-07 7 min read
A snapped garage door spring happens without warning. One second your door opens normally; the next, it won't budge or drops suddenly. The spring has failed. You need a professional technician near you within hours, not days. A same-day replacement costs between $300 and $600 depending on whether you have a single torsion spring or dual extension springs. Acting fast prevents secondary damage to your opener and door panels.
I got a call last Tuesday from a homeowner on Baseline Road who heard a loud bang from the garage, then couldn't open the door manually or with the opener. That bang? A snapped torsion spring. She'd tried to lift the door herself, which could have caused serious injury. Within two hours, we had her sorted with a new spring and a safety check on her entire system.
Springs fail because they're under constant tension, cycling thousands of times per year. A standard torsion spring lasts 7 to 9 years with normal use. Extension springs wear faster, especially if your door gets heavy use. Cold weather in Boulder doesn't help either. Winter temperatures make metal brittle, and springs that were already weakened snap during the first warm spell.
Most snaps happen without warning because homeowners don't inspect their springs regularly. You can't see the tiny stress fractures inside the coil until they give way. That's why preventative replacement beats emergency calls. If your springs are older than seven years, schedule an inspection before they fail.
I understand the temptation to save money and replace a spring yourself. Don't. A snapped spring carries serious risks. The spring is under hundreds of pounds of tension. Releasing that tension incorrectly can cause the door to crash down, sever fingers, or send the spring coil across the garage like a projectile. Hospitals see garage door injuries every month.
Beyond safety, DIY spring replacement often costs more than hiring us. You'll buy the wrong spring size, damage your opener trying to compensate, or install it incorrectly and blow it out again within weeks. Our garage door repair cost guide shows why a $400 professional job beats a $150 DIY attempt that becomes a $800 second repair.
When a spring snaps, you need help fast. Garage Door Boulder handles emergency calls the same day across Boulder and surrounding areas like Lafayette and Broomfield. We keep common spring sizes in our trucks, so we're not ordering parts while you wait. A typical replacement takes 1 to 2 hours from arrival to door testing.
Your replacement cost depends on spring type. Torsion springs (the coiled spring above your door) run $350 to $500 installed. Extension springs (on the sides of your door) cost $250 to $400. If both springs have failed or you want preventative replacement of the second spring to avoid a second emergency call, expect closer to $600 total. We'll give you an accurate estimate before any work starts.
**Need garage door springs in Boulder today?** Call 720-679-7275 for same-day service across Boulder County.
Our technician starts by disconnecting your opener and securing the door to prevent accidental closure. We remove the failed spring and inspect the cable, pulleys, and hinges for secondary damage. A snapped spring often pulls hard on other components, and we catch those issues during replacement.
Next, we install the new spring, test the door balance (it should open smoothly without the opener), and reattach everything. Finally, we cycle the door 10 to 15 times through the opener to ensure smooth operation and safety. We'll also check your photo eye and auto-reverse function. If your door is old or has other wear, we'll point it out so you can plan ahead.
After replacement, maintain your springs with an annual inspection. We'll spot weakening coils, rust, or cable wear before they become emergencies. Keeping your springs lubricated with garage door lubricant (not WD-40) extends their life by a year or two.
If you've upgraded to a smart garage door opener, you already have built-in alerts for issues. If not, smart technology can add safety features that catch problems early.
A snapped spring feels like a crisis, but it's manageable with the right response. Call us immediately, skip the DIY temptation, and schedule a free estimate at 720-679-7275 or through our contact page. We'll get your door working and explain what happened so you can avoid surprise failures in the future.
How do I know if my spring is actually snapped? Your door won't open more than a few inches, feels extremely heavy when manually lifted, or drops suddenly on its own. You might hear a loud bang or twang beforehand. Never force a stuck door; call us instead.
Can I open my garage door manually while waiting for repair? Only if it's completely disconnected from the opener. Lifting a door with a snapped spring is dangerous and can cause injury. If you need your car out, call us for emergency service.
Why do springs fail in winter? Cold makes metal brittle. Springs already weakened by age or stress snap more easily when temperatures drop below freezing. Boulder winters accelerate failures in older springs.
Do both springs need replacement at the same time? If one snaps, the other is likely near failure. Replacing both prevents a second emergency call within months. It costs more upfront but saves money and hassle long term.
How long do new springs last? A quality torsion spring lasts 7 to 9 years with normal residential use. Extension springs wear faster, typically 5 to 7 years. Lifespan depends on how often you use your door.