A standard residential garage door spring lasts 7 to 14 years, or about 10,000 open-and-close cycles. The actual lifespan depends almost entirely on how often the door is used. Springs are rated in cycles, not years.
How to estimate the cycles on your door: count how many times the door opens and closes on a typical day. Most homes average 4-6 cycles per day (driving in and out, kids leaving, etc.). At 4 cycles/day, a 10,000-cycle spring lasts ~7 years. At 6 cycles/day, ~4.5 years. At 2 cycles/day (single-driver, weekend-only), 13+ years.
Standard vs high-cycle springs: Most builder-installed springs are 10,000-cycle. Upgraded high-cycle springs (25,000-cycle) cost an extra $30-$60 per spring but last 2.5x as long. We default to high-cycle on every replacement we install. The math always works in the homeowner's favor.
What shortens spring life: Cold New England winters (springs are stiffer when cold and absorb more impact during the first cycle of the day), hard cycles from auto-reverse on misaligned sensors, weight added to the door (insulation upgrades, decorative overlays) without re-tensioning the springs, and lack of lubrication. Annual maintenance with a silicone-based lubricant on the spring coils extends life by 20-30%.
Replace before failure, not after: springs almost always break when the door is closed (when they're under maximum tension). A door with a broken spring can't be opened by hand — it's too heavy. If you're past 10 years on the original spring, planned replacement is dramatically less expensive than emergency replacement plus the inconvenience of a stuck door.
The pair principle: if your door has two springs, they almost always fail within months of each other (same cycles, same age). If one breaks, replace both — same labor cost, half the future emergencies.
Watch for these warning signs before failure, and request same-day replacement when you spot them.
