2026-04-23 7 min read
It usually happens without much warning. You hit the button, hear a loud bang from inside the garage, and suddenly your door won't budge. Or it moves a few inches and stops. For most Kent homeowners, that sound means one thing: a broken garage door spring.
Springs are the unsung workhorses of your garage door system. They do the heavy lifting. literally. And in a climate like Kent's, where temperatures swing between damp, cold winters and dry summers, springs take on extra stress that homeowners in drier regions simply don't deal with.
Kent sits in the Green River Valley and sees around 45 inches of rain per year. That persistent moisture is relentless on metal components. Rust and corrosion develop on spring coils over time, increasing friction and reducing the metal's flexibility. Once a spring starts corroding, it loses tension capacity faster. and breaks sooner than it should.
Beyond the moisture, the Pacific Northwest's seasonal temperature swings create a pattern of metal expansion and contraction that accelerates fatigue. Mornings in Kent's colder months can sit in the mid-30s°F while afternoons warm up considerably. That daily cycling. contracting overnight, expanding by afternoon. repeats dozens of times between November and March. Each cycle adds microscopic stress to the spring coils. By late winter or early spring, springs that have been quietly weakening all season often snap during the first stretch of regular use.
If you've already noticed rust on your hardware, our post on moisture and rust damage in Kent garages covers the bigger picture of what wet weather does to your door system.
Most Kent homes use one of two spring types:
Torsion springs are mounted horizontally above the door opening on a metal bar. They're the standard on most modern sectional doors. the kind you'll find in the majority of homes in East Hill, Panther Lake, and Scenic Hill. Torsion springs are wound under high tension and store enormous energy. They're more durable and safer than the alternative when they do fail.
Extension springs run along the sides of the door tracks and stretch as the door closes. They're more common in older homes. some of the ramblers and split-levels built in Kent from the 1950s through the 1980s still have extension spring setups. When an extension spring snaps, it can travel with serious force if a safety cable isn't installed alongside it.
Neither type is safe to handle without proper training and tools.
You don't always get a loud bang as your first warning. Watch for these earlier signals:
- The door feels unusually heavy when you lift it manually. A properly balanced door should feel like about 10,15 pounds. If it feels like you're lifting the door's full weight, the springs aren't doing their job. - Visible gaps in torsion spring coils. Healthy coils sit flush against each other. A visible gap or separation means a break has already occurred or is imminent. - The opener strains, slows, or stops mid-cycle. Your opener motor is designed to move a counterbalanced door. not carry the full weight of a 150,250 pound slab of steel or wood. - The door won't stay open halfway. Disconnect the opener and lift the door to waist height. Let go. It should stay put. If it drifts down, your springs are losing tension. - Rust streaks running down from the coils. Common in Kent homes with older hardware that hasn't been lubricated regularly.
If you're seeing any of these signs, it's time to stop using the door and call for service. Continuing to run an opener against a failing spring can burn out the motor. turning a $200,$350 spring repair into a much larger bill.
Pricing varies by spring type, door size, and whether you replace one or both springs. Here's a realistic range for the Kent area:
- Single torsion spring: $150,$350 including parts and labor - Both torsion springs (recommended): $250,$500 - Extension springs: $100,$200 per spring
Springs are almost always sold and replaced in pairs for a good reason: if one spring has failed after years of use, the other is typically at the same point in its lifecycle. Replacing just the broken one often means a second service call within months. Replacing both at once costs more upfront but saves money and inconvenience over time.
For a full breakdown of how parts and labor factor into your total repair cost, see our labor vs. parts guide.
This question comes up a lot, and the answer is consistent: don't do it. Garage door springs operate under extreme tension. enough stored energy to cause serious injury or death if a spring releases suddenly or a winding bar slips. Professional technicians use calibrated winding bars, specialized safety equipment, and years of hands-on experience to handle this work safely.
Beyond the safety risk, an incorrectly wound spring means your door won't balance properly. That throws extra strain onto your opener motor, your cables, and your tracks. creating a cascade of additional wear. It also typically voids any warranty on the door or opener.
The small amount you might save on parts isn't worth the risk. Schedule a service call and let a trained technician handle it in an hour or two.
Once you have new springs installed, a few simple habits will help them last longer. especially important given Kent's wet climate:
- Lubricate springs every six months with a lithium-based or silicone spray lubricant. This reduces friction and slows rust formation on the coils. - Test your door's balance quarterly. Disconnect the opener, lift the door halfway, and let go. It should hold position without drifting. - Schedule an annual tune-up. A technician can catch early signs of wear, corrosion, or imbalance before they become emergency repairs. - Consider high-cycle springs when replacing. Standard springs are typically rated for 10,000 cycles. High-cycle options rated for 25,000,50,000 cycles cost more upfront but last significantly longer. a smart investment for households that use the garage door as the primary entry point.
Garage Door Kent serves homeowners across Kent and neighboring areas including Auburn, Renton, and Federal Way. If you're unsure about the condition of your springs, we're happy to do an inspection and give you a straight answer. Check our service areas to confirm we cover your neighborhood.
Most standard springs are rated for 10,000 cycles. roughly 7 to 10 years under normal use. In Kent's wet climate, springs that aren't regularly lubricated may fail sooner due to rust and corrosion. High-cycle springs rated for 25,000+ cycles are available and worth considering at replacement time.
Technically yes, but it's not recommended. With a broken spring, the door carries its full weight. often 150,250 pounds. with no counterbalance. Attempting to lift it manually risks injury and can damage the opener, tracks, and cables. Keep the door closed and call for service.
Yes, in almost every case. If one spring has failed after years of use, the other spring has experienced the same wear and will likely break soon. Replacing both at the same time costs more upfront but avoids a second service call and prevents the imbalance that a single-spring replacement creates.