2026-04-14 7 min read
If you've ever heard what sounds like a gunshot coming from your garage on a quiet Cotati morning, you already know what a broken spring sounds like. It's jarring. and it usually means your garage door isn't going anywhere that day. Spring failure is one of the most common garage door problems we see in Sonoma County, and understanding the signs ahead of time can save you from being stranded or paying emergency pricing.
Cotati sits right on the edge of the Petaluma Gap, which means the area pulls in a cooler, moister marine air pattern than much of the rest of Sonoma County. Winters bring consistent rain. February averages nearly six inches of precipitation. and that humidity is hard on metal hardware. Garage door springs are particularly vulnerable.
Rust and corrosion build up on spring coils when moisture is present over time. Once rust sets in, it increases friction, reduces flexibility, and causes springs to break well before they've used up their rated cycle count. If your garage doesn't have great ventilation or your door faces the prevailing westerly winds, this process moves faster.
And if you're in one of Cotati's neighborhoods with homes built between the 1960s and 1990s. common throughout the area near Old Redwood Highway or over toward Rohnert Park. there's a reasonable chance your springs have never been replaced. That's worth paying attention to.
Most standard torsion springs are rated for 10,000 cycles. one cycle being a single open-and-close operation. At four uses per day, that's roughly seven years before you hit the limit. For households that use the garage as their primary entry point (which is most people), that number can drop to four or five years.
High-cycle springs rated for 25,000 cycles are available and last considerably longer at the same usage rate. When a technician replaces your springs, it's worth asking specifically about the upgrade. the price difference is typically modest but the lifespan gain is significant.
Most springs give you signals before they fully snap. Here's what to look for. and you can check most of these from a safe distance without touching anything:
- Visible gaps in the coils: Healthy torsion spring coils should touch each other. A gap means the spring has separated or stretched near failure. - The door feels unusually heavy: Try disconnecting the opener and lifting the door manually about halfway. A well-balanced door should stay put on its own. If it drops, your springs are losing tension. - Slow opening speed: A standard residential door should open in about 12,15 seconds. If yours is taking noticeably longer, the opener is compensating for spring tension loss. which will wear out your motor faster. - Uneven movement or a lopsided door: This is more common when one extension spring fails while the other is still partially functional. - Rust or corrosion on the coils: Surface rust isn't just cosmetic. it accelerates metal fatigue and cuts the spring's lifespan short. - Loud bang from a closed garage: If you hear this, stop using the door immediately and call a professional. Do not try to operate it manually or with the opener.
For a broader look at what these and other symptoms mean for your door's overall health, our guide on warning signs your garage door needs attention covers the full picture.
Most modern Cotati homes with attached single or double-car garages use torsion springs. the large coiled springs mounted horizontally on a shaft above the door opening. They're more durable, safer when they fail, and better suited for heavier doors.
Extension springs are the older style. they run along the horizontal tracks on either side of the door and stretch as the door closes. They're less expensive but have shorter lifespans and can be more dangerous if they snap without a safety cable installed.
If you're not sure which type you have, take a look above the door when it's closed. A single large coil on a metal shaft? That's a torsion spring. Two springs stretching alongside the upper tracks? Those are extension springs.
Here's the honest breakdown for the Cotati and greater Sonoma County area:
- Torsion spring replacement: Typically $150,$350 per spring for parts and labor - Extension spring replacement: Usually $100,$200 per spring - Replacing both springs at once: Almost always the smart move. when one breaks, the other is statistically close to the end of its life too. Labor cost is nearly the same whether you replace one or both, so you'd be paying a second service call for the second spring failure just months later. - Emergency/after-hours replacement: Expect to pay a meaningful premium over standard business-hours pricing, often $100,$200 more
Watch out for quotes that seem too low. A legitimate spring replacement includes not just the spring itself but inspection of cables, rollers, and hardware. and ideally a parts warranty of at least a few years.
We'll be direct: this is not a DIY job. Torsion springs are under extreme tension. If a spring releases unexpectedly during handling, it can cause serious injury or damage your door system. Specialized winding bars and experience are required to safely set spring tension. it's not something a YouTube video adequately prepares you for.
For a homeowner looking to stay safe and protect their investment, hiring a professional is the clear call. You can learn more about what to keep an eye on in the meantime through our garage door maintenance tips. there's a lot you can do proactively without touching the springs.
In some cases, a spring that has simply lost tension. without being cracked or visibly broken. can be re-tensioned rather than replaced outright. But if there's visible damage, rust, or the spring has clearly separated, full replacement is the only safe option.
If your door is also showing damaged panels, worn cables, or an aging opener, it may be worth evaluating whether the whole system makes sense. Our team at Garage Door Company Cotati can assess the full picture and help you make that call without pressure. Contact us to schedule a same-day or next-day inspection.
A broken spring usually produces a loud bang and leaves the door unable to open more than a few inches (the opener motor will strain and stop). A worn spring is subtler. the door feels heavier, opens slower, or doesn't stay open on its own. Both situations warrant a professional inspection.
Replace both. Since both springs were installed at the same time and have completed the same number of cycles, when one breaks the other is typically very close to the end of its life. Replacing only the broken spring leaves you with an unbalanced door and a second service call within months.
For a standard single or double-car garage door in Cotati, a professional spring replacement typically takes 45 minutes to an hour and a half, depending on the spring type and whether any additional hardware needs attention.