2026-03-28 6 min read
One morning your garage door opens fine. The next morning, it doesn't move at all. or it lurches partway up and stops. In most cases, the culprit is a broken spring. It's one of the most common garage door repairs there is, and one of the most misunderstood.
This post is for Sebastopol homeowners who want straight answers: what springs do, how to recognize when they're failing, what replacement actually costs, and why this is one repair you really should leave to a professional.
Your garage door. whether it's on a craftsman bungalow near downtown Sebastopol or a ranch-style home out toward the Laguna de Santa Rosa area. likely weighs somewhere between 150 and 300 pounds. The springs are what make that weight manageable. They store mechanical energy when the door closes and release it when the door opens, doing the heavy lifting so your opener motor doesn't have to.
There are two types of springs used in residential garage doors:
Torsion springs are mounted horizontally above the door opening and work by twisting to create tension. They're more durable, typically lasting 8,15 years, and are considered the safer option. Most newer homes and doors installed in the last couple of decades use torsion springs.
Extension springs run along the horizontal tracks on either side of the door and work by stretching. They're simpler and less expensive but generally need replacement sooner. usually within 7,12 years.
Both types are under enormous tension at all times. That's what makes this repair different from most things around the house.
Springs don't always break with a loud bang (though sometimes they do. it can sound like a gunshot in the garage). More often, the signs show up gradually. Here's what to watch for:
- The door feels unusually heavy when you try to lift it manually, The door opens unevenly or tilts to one side during operation, You hear squeaking or grinding as the door moves. especially on older spring systems that haven't been lubricated, Visible gaps in the spring coils. a torsion spring that's broken will have a visible separation in the coil, The opener motor strains or the door reverses before fully opening - Rust or corrosion on the coils. in Sebastopol's wet winters, springs that haven't been maintained can rust out faster than their rated lifespan
If you notice any of these, don't wait. A door running on a single spring (when the system is designed for two) puts tremendous strain on the opener motor and the remaining spring. You're likely looking at two repairs instead of one if you delay. The warning signs covered in our repair guide can also help you figure out whether the spring is the only issue or whether other components need attention.
Here's what you can realistically expect to pay for professional spring replacement:
- Extension springs: roughly $100,$200 per spring including labor - Torsion springs: roughly $150,$350 per spring including labor - Full replacement for a single door (both springs): typically $150,$350 on the lower end, up to $500+ depending on spring grade and any related repairs needed
A few things affect where your quote lands. The size and weight of your door matters. heavier doors require heavier-duty springs, which cost more. Spring grade matters too: economy springs are cheaper but tend to last only 5,7 years, while high-cycle springs cost more upfront but can last significantly longer. For a home where the garage is the main entry and exit point, the better spring is almost always the smarter investment.
If you're considering switching from extension springs to a torsion system, budget significantly more. that conversion typically runs $400,$800 because it involves removing the old hardware and installing an entirely new system.
One thing most reputable shops will recommend: replace both springs at the same time, even if only one has broken. Springs in a pair experience identical wear over their lifespan. When one fails, the other is usually close behind. Replacing both during the same service visit saves you a second call fee and prevents the remaining spring from failing unexpectedly. possibly when you're trying to leave for work.
For homeowners in nearby Santa Rosa, pricing is generally similar to Sebastopol since labor rates across Sonoma County are comparable.
Garage door springs are under extreme tension. enough to cause serious injury or death if they release suddenly during handling. This isn't a scare tactic; it's a consistent message from every trade organization and safety authority in the industry. Professional technicians use specialized winding bars, safety cables, and years of hands-on experience to handle this work safely.
Beyond the physical danger, incorrect spring tension leads to a door that's unbalanced, which puts extra stress on the opener and can cause premature failure of other components. An improperly tensioned spring can also void your opener's warranty. The math on DIY savings doesn't hold up when you factor in those risks.
A spring replacement makes clear sense when the door itself is in good condition. But if your door is more than 20 years old and you're already dealing with corroded hardware, damaged panels, or a failing opener, it's worth having an honest conversation about whether repair or full replacement is the better value. Our team at Garage Door Sebastopol will give you a straight answer. not just the one that costs more.
You can review our full range of services to understand what a complete door inspection covers, or reach out to schedule a visit if you want eyes on the situation before making a decision. Our FAQ page also covers common questions about spring types, warranties, and what to expect during a service appointment.
Q: My garage door opens about six inches and then stops. Is that a broken spring?
A: That's one of the classic signs. When a spring breaks, the opener often can't lift the full weight of the door and either stalls out or the built-in safety mechanism cuts power to prevent motor damage. Manually disconnect the opener (pull the red cord) and try to lift the door by hand. if it's extremely heavy or won't stay up on its own, a broken spring is almost certainly the cause.
Q: How long should garage door springs last in Sebastopol's climate?
A: Most springs are rated for 10,000,20,000 cycles (one cycle = one open and one close). For a family using the garage as the primary entrance, that can mean 7,12 years for standard springs. In Sebastopol's wet winters, springs that aren't regularly lubricated can rust and fail earlier than their cycle rating would suggest. Applying a lubricant to the spring coils once or twice a year significantly extends their life.
Q: Should I replace my springs before they break, or wait until they fail?
A: If your springs are more than 8,10 years old and showing any signs of wear. rust, squeaking, visible gaps. proactive replacement is worth considering. A spring that breaks unexpectedly can jam your door in the closed position, leaving your car stuck inside. It can also snap with enough force to damage surrounding components. Scheduling a replacement on your own timeline is always easier and less stressful than dealing with an emergency call.