2026-08-08 7 min read
Most homeowners never think about their garage door springs until the moment they stop working. Then suddenly, you're staring at a heavy door that won't budge, and you're wondering how something so small could cause such a big problem. The truth is, your garage door springs do nearly all the heavy lifting in your home, and understanding how they work helps you recognize trouble before disaster strikes.
Your garage door typically weighs between 300 and 500 pounds, depending on material and size. That's roughly the weight of a baby grand piano sitting above your car every single day. Without springs, your garage door opener would need to be powerful enough to lift a car. Instead, springs do the math for you.
Two main types of springs handle this job in Moraga homes: torsion springs and extension springs. Torsion springs wind around a horizontal rod above your door, storing energy as they coil. When you open the door, they unwind and counterbalance the weight, making your opener's job almost effortless. Extension springs, by contrast, hang on either side of the door and stretch as it closes, then contract to help it open. Both types work on the same principle: they store mechanical energy and release it in a controlled way.
The springs don't last forever. Most last between 7 and 9 years with regular use. However, springs in humid or coastal climates (like parts of the greater San Francisco Bay Area) may degrade faster due to rust and corrosion.
Springs fail for a few predictable reasons. Wear is the most common. Every time your door opens and closes, the spring cycles slightly. Over thousands of cycles, metal fatigues and weakens. A snapped spring isn't sudden failure from normal use.
Poor maintenance accelerates failure. Springs need occasional lubrication to reduce friction. Rust speeds deterioration dramatically. Salt air and temperature swings in Moraga's hills can corrode bare metal quickly. Additionally, if your door is imbalanced because of a worn opener or misaligned tracks, springs bear uneven stress and fail prematurely.
Shock loading also causes failure. If your door falls hard or hits an obstruction, the springs absorb that impact. One hard hit might be the final straw for a spring near the end of its lifespan.
If you suspect a snapped spring, do not attempt to operate your door. A broken spring means the door's full weight rests on the opener, which can strip gears or snap the opener itself. Read our guide on what to do with a snapped garage door spring for safe next steps.
**Need garage door springs in Moraga today?** Call 510-907-6194. we cover same-day service across the area.
Several warning signs appear before springs snap completely. Your door may move slowly or jerkily as springs weaken. You might hear a loud bang from the garage, which is often the moment a spring breaks. The door might feel heavier to push open manually, or your opener struggles to lift it smoothly.
If your door opens but won't close, or closes but won't open, springs are likely compromised. Even if your door still moves, a visual inspection is worth doing. Look above the door for gaps in the spring coil or visible rust. Don't touch the springs themselves; they're under extreme tension and can cause serious injury.
Preventive maintenance is always smarter than emergency repair. Regular lubrication, prompt track alignment, and annual inspections extend spring life by years. If your door is showing age or you haven't had springs serviced in several years, check our maintenance guide for a realistic maintenance plan.
Spring replacement cost in Moraga ranges from $200 to $400 per spring, depending on spring type, door weight, and labor. Most doors have two springs, so budget accordingly. As an owner who prices honestly, I can tell you that spring replacement is not something to defer. A snapped spring might damage your opener next, turning a $300 repair into a $500 problem.
Get an accurate estimate by scheduling a free quote today. We'll assess your springs, discuss replacement timing, and give you a straight answer on whether repair or replacement makes sense for your specific door.
How long do garage door springs last? Most springs last 7 to 9 years under normal residential use, cycling about 3 to 5 times daily. Springs in humid or coastal areas may wear faster.
Can I replace one spring if only one is broken? Both springs should be replaced together. If one fails, the other is likely near failure too. Replacing only one creates imbalance and shortens the new spring's life.
What's the difference between torsion and extension springs? Torsion springs coil around a rod above the door. Extension springs hang vertically on either side. Torsion is more common in modern homes and safer for residential use.
How much does spring replacement cost near me? Spring replacement in Moraga typically costs $200 to $400 per spring, plus labor. A complete two-spring replacement usually runs $500 to $800 before any additional repairs.
Is a snapped spring an emergency? Yes. A broken spring means your door's full weight transfers to the opener. Continuing to use the door risks additional damage. Contact us for same-day service if this happens.