2026-09-12 7 min read A2Z Garage Doors
Here's what most homeowners don't realize about garage door springs: when one snaps, your entire door becomes a 400-pound liability that can't be safely operated, and no amount of force from your opener will change that. A snapped spring isn't just a broken part to ignore until Monday. It's an emergency that demands immediate attention from someone who knows how to handle tension systems safely. If your garage door won't close, opens only partway, or makes a loud bang followed by resistance, you likely have a failed spring on your hands.
Garage door springs don't just snap randomly. They fail because they've been working overtime for years. A typical torsion spring lasts 7 to 10 years under normal use, but every cycle of your door opening and closing puts stress on the coil. The metal fatigues. Small cracks form. Eventually, the spring reaches its breaking point and separates with enough force to startle you.
The two main types are torsion springs (mounted above the door on a shaft) and extension springs (running along the sides). Both follow the same lifespan pattern. Belmont's mild climate actually works in your favor here, since extreme temperature swings in places like the Central Valley accelerate wear. But springs still fail regularly, and we've covered the warning signs in detail.
The moment a spring snaps, your garage door loses its counterbalance. That door weighs 300 to 500 pounds depending on the size and material. Your opener motor was never designed to lift that full weight. It's rated to lift only about 10 percent of the load because the springs do the heavy work.
When you press the remote after a spring fails, one of three things happens: the door doesn't move at all, it lurches up a few inches and gets stuck, or it opens unevenly with one side higher than the other. Don't force it. Forcing a motorized door with a broken spring can damage the opener, bend the door track, or worst case, cause the door to crash down. If you want to know more about spring types and when repair makes sense versus replacement, read our complete guide to garage door springs in Belmont.
**Need garage door springs in Belmont today?** Call 650-338-0207 (we cover same-day service across the area).
The internet is full of videos showing people replacing garage door springs at home. Don't watch them. Don't try it. A torsion spring under tension holds roughly 200 to 300 pounds of stored energy. When released improperly, it can snap like a whip and cause serious injury. The tools needed (spring winding bars, winding cone, torque wrench) aren't lying around in most garages, and using the wrong ones creates additional hazard.
A professional technician has training, experience, and proper equipment to release tension safely, replace the spring, and rebalance the system. The job takes 45 minutes to two hours. We can usually get to Belmont homes same-day when you call early, and the cost often surprises homeowners in a good way. If you're curious about spring replacement pricing before calling, we've broken down garage door springs cost in Belmont clearly.
First, stop trying to operate the door. Leave it in whatever position it's in.
Second, get a free estimate. Call Garage Door Belmont at 650-338-0207 and describe what happened. We'll ask whether the door is stuck up, stuck down, or partially open. We'll also check if you need one spring replaced or both (some homeowners find both springs have similar age and wear, so replacing both prevents a second failure weeks later).
Third, plan for a temporary workaround if your door is stuck closed. If you need vehicle access, you may have options depending on your garage layout, though we don't recommend manual operation. If the door is stuck open, keep the garage locked and monitor your home.
Most spring replacements run between $250 and $400 for a single spring, or $450 to $650 for both. Get a proper estimate by scheduling a service call so we can see your setup in person and give you an exact quote based on your door type, spring size, and whether both springs need service.
A broken spring won't fix itself. The longer you wait, the higher the risk that someone will try to force the door open or that additional damage occurs. Belmont residents rely on us for prompt, honest service when springs fail. Call us today.
Garage door springs fail when you least expect it. The good news is that professional replacement is fast, affordable, and safe. Let us handle it.
How do I know if my spring is broken versus just stuck? A broken spring typically produces a loud bang or pop sound, and the door won't move at all despite the opener running. A stuck door may respond slowly or with jerking motion. When in doubt, call a professional to inspect it safely before attempting any manual operation.
Can I still open my garage door if the spring is broken? Manual operation is possible if your door has a manual release, but it's dangerous because you're lifting 400+ pounds. The door can drop suddenly and cause injury. Professional help is the safer choice.
How long does a spring replacement take? Most single-spring replacements take 45 minutes to an hour. If both springs need replacement, plan for 90 minutes to two hours total.
Why do both springs need replacement if only one broke? Garage door springs typically wear at the same rate. If one has failed after 7 to 10 years, the other is near its end as well. Replacing both prevents a second failure shortly after the first.
What should I do with my garage door while waiting for repair? Leave it in its current position and do not operate it. Keep the area clear and lock the garage to prevent accidental access.