2026-06-14 7 min read
Your garage door won't budge. You hear a loud crack or bang from the garage. A snapped spring is almost always the culprit, and you cannot safely operate that door until it's fixed. A broken torsion or extension spring removes all mechanical advantage from your opener, turning a 400-pound door into a dead weight that can cause serious injury or property damage if forced.
Springs do one job: they counterbalance the weight of your door so the opener can lift it smoothly. A typical residential door weighs 300 to 500 pounds. That counterbalance is critical. When a spring snaps, that entire load transfers to the opener motor and cable system, which aren't designed to handle it alone.
You'll notice it immediately. The door either won't open at all, or it opens partway then crashes down. Some homeowners try the remote again and again. Stop. Repeated attempts can damage the opener and create a safety hazard for anyone nearby.
Springs last roughly 7 to 9 years under normal use in San Francisco's climate. Moisture from fog and salt air accelerates rust and fatigue, especially in torsion springs. We've seen springs fail as early as 5 years in homes near the coast.
This is where I've seen the worst outcomes. Garage door springs are under extreme tension. A snapped torsion spring can unwind violently, and an extension spring under load can snap like a whip. Injuries include crushed fingers, deep lacerations, and broken bones.
Professional technicians use specialized tools and safety cables to manage that tension. They also know how to assess whether cables, pulleys, or the door itself sustained secondary damage. A DIY attempt might get the door open, but you won't catch a damaged cable until it fails mid-lift, potentially dropping the door on a car or person.
If you've already tried to force the door, call for emergency garage door service in San Francisco immediately. Partial damage is harder to spot and more dangerous to work around.
Look at the garage door from inside the garage. Stay clear of the door itself. If you see a visible gap or separation in the spring assembly above the door, or if one side of the door is higher than the other, you have a broken spring.
Listen for clues, too. Did you hear a loud metallic crack or snap? That's usually a snapped torsion spring. Did the door suddenly feel heavier when you tried to open it manually? Extension spring failure. Either way, don't operate the door again.
**Need garage door springs in San Francisco today?** Call (415) 966-0537. We cover same-day service across San Francisco and the Bay Area.
Spring replacement cost depends on whether you have one or two springs, and which type. Our detailed pricing guide covers real costs and what affects the estimate. Most San Francisco homes need a same-day service call because a non-functional door blocks access to your driveway and garage.
Garage Door San Francisco typically schedules same-day appointments for snapped springs. The repair itself takes 1 to 2 hours. We inspect cables, pulleys, and the door panel for secondary damage while we're there.
The best safety move is proactive maintenance. Regular lubrication and visual inspection catch worn springs before they fail. Our maintenance checklist helps homeowners spot trouble early. Springs that show rust, uneven tension, or gaps between coils need replacement soon.
If your door is 7+ years old, ask a professional for a spring inspection. It costs far less than an emergency call, and it keeps your family safe.
When you call, describe what you heard and saw. A technician will confirm the break, provide an estimate, and schedule installation. We'll replace both springs even if only one snapped. Matched springs ensure balanced operation and prevent the second spring from failing weeks later.
Don't try to get the door open yourself. Don't let children play near the garage. Schedule a free quote and same-day service here, or call (415) 966-0537 right now.
A snapped spring is an emergency, but it's fixable fast. Get professional help today.
Can I open my garage door manually if the spring is snapped? Do not attempt this. Without spring counterbalance, the door's full weight falls on you and the hinges. You risk crushing injuries and door damage. Leave it closed until repaired.
How long do garage door springs typically last? Torsion and extension springs last 7 to 9 years with regular use in San Francisco. Coastal humidity and salt air reduce lifespan. Most springs are rated for 10,000 to 15,000 cycles.
Will my homeowner's insurance cover a snapped spring? Most standard homeowner policies do not cover normal wear and tear on springs. Check your policy. Some plans cover sudden, accidental failure. Always ask about coverage when you call for service.
Is it cheaper to replace just the broken spring? No. Both springs should be replaced together. Matched springs ensure balanced door operation. A single replacement causes uneven stress and premature failure of the remaining spring.
Can a snapped spring damage my garage door opener? Yes. When springs fail, the opener motor strains to lift the full door weight. Repeated attempts cause motor burnout, gear damage, and cable fraying. Have the opener inspected after any spring failure.