2026-05-14 7 min read
Garage door springs do one job: support 300 to 500 pounds of weight so your door opens smoothly. When they snap, your door won't budge. Here's what actually happens inside your garage, why springs fail in Belmont's climate, and what an honest repair quote should cost.
Your garage door relies on one of two spring types: torsion or extension springs. Torsion springs sit above the door and twist to balance weight. Extension springs hang on either side and stretch to provide lift. Both are under enormous tension, even when the door is closed. That tension is what does the heavy lifting, not your opener.
Springs last 7 to 9 years on average, sometimes longer if you live in a stable climate. Belmont's temperature swings and humidity cycles work against them. Metal expands and contracts. Rust builds up. Eventually, the metal fatigues and breaks. When a snapped spring happens, you'll hear a loud bang. The door becomes immobile. Many homeowners think the opener failed. Usually, it's the spring.
We've already covered how winter rains are hard on garage door springs and cables. Moisture seeps into coils. Salt air from the coast (we're close enough to the Bay) accelerates corrosion. Temperature shifts between 40 degrees and 70 degrees happen regularly, and that cycling wears springs faster than you'd expect in a stable climate.
Lack of maintenance speeds the process. A little lubricant and inspection every year can add life to your springs. Most homeowners don't think about it until something breaks. That's normal. But preventive care matters.
**Need garage door springs in Belmont today?** Call 650-603-5090. We cover same-day service across the area.
Here's where I'm honest with you. A single spring replacement runs between $150 and $300 per spring, depending on the type and quality. Torsion springs cost more than extension springs. High-cycle springs (rated for 25,000 or 50,000 cycles) cost more upfront but last longer. Labor is usually $100 to $150 per spring. So a single snapped spring, installed, costs $250 to $450 in Belmont.
If both springs are original and old, I recommend replacing both at once. Yes, it costs more. But the second one will fail in months, not years. You'll pay labor twice. Replace them together and you're done for another 7 to 9 years. Two springs, both installed, runs $500 to $900 depending on type.
That's not a scare tactic. That's math. When you call for an estimate, ask for a breakdown: spring cost, labor, and any additional hardware. Avoid shops that won't itemize. And be skeptical of quotes that seem too cheap. Cheap springs snap early. We use quality parts and stand behind them.
Don't guess at spring costs online. Every garage is different. Spring size depends on your door weight, which depends on material (steel, aluminum, wood) and size. A standard 8x7 door uses lighter springs than a 16x7 two-car. Our team can schedule a free quote and give you an exact number, same day if you call before 2 PM.
When you're ready, we'll inspect both springs, check for wear on cables and hardware, and tell you exactly what needs to happen. No pressure. No upsell. If only one spring is bad, we'll say so. If both are aging, we'll explain the math and let you decide.
For broader maintenance habits, check out our garage door maintenance guide. Springs are just one part of the system. Openers, cables, and tracks all matter too.
A snapped spring leaves you stuck. You can't open your door manually safely. The opener can't do it either. You're locked in or locked out. That's why we offer same-day service. Call early in the day, and we'll be there before dinner. Emergency service costs a bit more, but it beats waiting a week.
If your spring snapped this week, don't delay. Moisture gets in. The door sits in one position, and cables can stretch. The longer you wait, the more secondary damage you risk. Contact us today to get your springs replaced.
Your garage door is one of the hardest-working things on your property. It opens and closes thousands of times. Respect that work by replacing springs when they fail, and your door will keep running. Garage Door Belmont has been doing this for years. We know Belmont's climate, and we know fair pricing.
Call 650-603-5090 now or book online. We'll get you a same-day estimate and honest advice.
How do I know if my garage door spring is broken? Your door won't open or close, even with the opener running. You may hear a loud crack or bang. The door feels heavier than normal, or it won't stay up if you open it halfway. Never try to force it. Call a professional immediately.
Can I replace a garage door spring myself? Springs are under extreme tension and can cause serious injury if mishandled. We strongly advise against DIY replacement. A professional should handle it. The cost of a mistake far outweighs the service fee.
How long do garage door springs last? Most springs last 7 to 9 years with normal use. Belmont's climate, humidity, and salt air can shorten that lifespan. Regular maintenance and lubrication help extend life. If your springs are original to a 10-year-old door, replacement is likely overdue.
Should I replace both springs at once? If one spring is broken and the other is close to the same age, replacing both is smarter. You'll avoid a second service call in a few months. The added cost now saves time and labor later.
What's the difference between torsion and extension springs? Torsion springs sit horizontally above the door and twist to lift it. Extension springs hang vertically on each side and stretch. Torsion springs are more durable and smoother but cost more. Extension springs are cheaper but wear faster. Your door type determines which you have.