2026-07-20 7 min read
Garage door springs fail without warning, but knowing the difference between torsion and extension springs helps you avoid overpaying for replacements. Most Redwood City homes use torsion springs because they're safer and last longer, but the choice depends on your door's weight and your budget.
Torsion springs twist and unwind to lift your garage door. They mount horizontally above the door opening and handle the heavy lifting as your door opens and closes. A single torsion spring typically lasts 7 to 9 years with regular use. When one snaps, the entire door becomes immobile because the spring carries most of the load. See our guide on garage door cost & pricing in redwood city: what you.
Torsion springs cost more upfront than extension springs, ranging from $150 to $300 per spring depending on door weight and quality. However, they're worth the investment. They distribute force evenly, reducing wear on your opener and tracks. If your door feels unbalanced or jerks when opening, a torsion spring is likely failing.
Extension springs run along each side of your door opening, stretching and contracting as the door moves. They're less expensive to replace (typically $100 to $200 per pair) but wear out faster, usually within 5 to 7 years. Extension springs also require safety cables, which add another layer of complexity if one snaps. Read about garage door safety in redwood city: what every homeowner should know.
The trade-off is clear: you save money initially but pay more in labor and replacements over time. Extension springs also put extra stress on your garage door opener, potentially shortening its lifespan.
Springs fail because they're constantly working. Every time your door opens or closes, the spring cycles. Over thousands of cycles, metal fatigues and breaks. Temperature swings in the Bay Area accelerate this process. Cold mornings and warm afternoons create stress that weakens springs faster than consistent climates.
Rust and lack of lubrication also speed up failure. If you notice squeaking or grinding sounds, your springs need attention before they snap completely.
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Spring replacement isn't just the spring itself. Labor typically adds $200 to $400 because technicians must safely remove tension, replace the spring, and rebalance your door. Some shops charge diagnostic fees (usually $50 to $100), which gets waived if you book the repair with them.
Our guide on garage door repair cost in Redwood City breaks down all labor charges so you know exactly what to expect before we arrive. Never let a contractor replace springs without explaining the full estimate first.
If both springs are original, replace them together. Mixing old and new springs causes the new one to wear faster because the old one no longer shares the load evenly. Budget for two springs if your door has them.
Springs are dangerous. A snapped spring stores immense energy and can cause serious injury or death if mishandled. The tension required to install a torsion spring is not something homeowners should attempt alone. Professional technicians have the right tools and training.
Attempting a DIY spring replacement voids most opener warranties and risks property damage or personal injury. It's not worth the small savings.
A snapped spring stops your door cold. The opener runs but the door won't budge. You might hear a loud bang when the spring breaks. Never force the door open manually and don't try to use the opener repeatedly, as this stresses the motor.
If you need a same-day estimate for spring replacement, contact us immediately. We typically respond within an hour in Redwood City and nearby areas like San Mateo and Palo Alto.
Regular lubrication and inspection extend spring life by 1 to 2 years. Silicone-based lubricants keep springs flexible and prevent rust. Check springs visually once a month for cracks or gaps. Our garage door maintenance guide covers this in detail.
If you have an older garage door (15+ years), springs are approaching failure. Plan ahead and budget for replacement before one snaps unexpectedly.
Contact a professional if you hear popping sounds, notice your door moves unevenly, or see visible cracks in the spring. Don't wait for complete failure. A preventive replacement costs less than emergency repair fees and prevents you from being locked out of your garage.
Garage Door Redwood City handles all spring types and can schedule a free quote in just a few minutes. We'll assess your current springs and recommend the best option for your home and budget.
Spring problems don't improve on their own. The sooner you address them, the sooner your door works safely again.
Torsion springs last 7 to 9 years with normal use. Extension springs typically last 5 to 7 years. Lifespan depends on how frequently you use your door, local climate, and maintenance habits. Harsh weather accelerates wear.
No. If one spring fails, the other is likely near failure too. Replacing both ensures even weight distribution and prevents the new spring from wearing faster. Most professionals recommend replacing springs in pairs.
Torsion springs cost $150 to $300 each. Extension springs cost $100 to $200 per pair. Labor adds $200 to $400 regardless of type. Torsion springs cost more upfront but outlast extension springs and reduce opener strain.
Most standard policies don't cover garage door spring replacement because it's considered wear and tear, not damage. Check your specific policy. Some extended warranties cover springs, so review your paperwork.
Lubricate springs monthly with silicone spray, keep your garage temperature stable, inspect springs visually every 30 days, and use your door gently without slamming it. Regular maintenance extends lifespan by 1 to 2 years.