2026-04-17 7 min read
If you've ever walked into your garage on a Tuesday morning, pressed the button, and watched your door groan halfway up before grinding to a halt. there's a good chance a spring gave out. It's one of the most common calls we get here in Cupertino, and it happens to homeowners in every neighborhood, from the mid-century ranch homes in Rancho Rinconada to the newer two-story builds in Oak Valley.
Understanding what's actually going on. and what to do about it. can save you time, money, and a lot of frustration.
Your garage door can weigh anywhere from 130 to over 400 pounds. The springs are what make it feel light when you lift it manually or when the opener raises it. They store mechanical energy when the door closes and release it when the door opens. doing the heavy work so your opener motor doesn't have to.
There are two types you'll encounter in Cupertino homes:
- Torsion springs. mounted horizontally above the door opening on a metal shaft. These are the standard on most modern doors, including the large two-car setups common in Oak Valley and Seven Springs. - Extension springs. run along the upper tracks on each side of the door. You'll find these more often on older, lighter doors, including some of the 1960s-era homes in Fairgrove and Rancho Rinconada.
Springs rarely snap without some warning. Watch for these:
If you disconnect the opener and try to lift the door manually, it should rise smoothly and stay up on its own at about waist height. If it feels like you're lifting a refrigerator, the spring tension is gone.
A snapping torsion spring sounds like a gunshot. Many Cupertino homeowners hear it from inside the house and assume something fell over. If your door stops working right after a loud bang, that's almost certainly what happened.
If one spring on a two-spring system fails, the door will tilt to one side as it opens. putting stress on the tracks, cables, and opener. Don't keep forcing it.
A broken torsion spring will have a visible gap where the coil has separated. With extension springs, look for a spring that's clearly stretched out, deformed, or lying slack.
This is a classic sign. The motor is working fine. the problem is that without spring tension, there's nothing to assist the lift.
For a broader look at what these symptoms might mean for your door overall, our post on common garage door problems Cupertino homeowners face covers several related issues worth reviewing.
Cupertino's weather is relatively mild. summers are long, dry, and comfortable, while winters bring cold, wet conditions with temperatures dropping into the low 40s°F. That seasonal swing from dry heat to damp cold creates a specific problem for springs: moisture accelerates rust and corrosion, which weakens the metal over time. If your springs haven't been lubricated in a year or two, they're far more vulnerable to failure during the wetter months between November and March.
This is especially relevant for homeowners near the Monta Vista hillside or Stevens Canyon area, where morning moisture and fog can linger longer than in the flatter parts of the city.
Most standard residential springs are rated for about 10,000 cycles. where one cycle equals the door going up and back down once. If you use your garage door four times a day, that's roughly 1,460 cycles per year, meaning a standard spring could last about seven years. High-cycle springs rated for 25,000,50,000 cycles are available and worth the upgrade if you're replacing springs anyway.
For many Cupertino households. especially those where the garage is the primary entry point to the home. daily use is heavy, and springs wear out faster than homeowners expect.
This is the question everyone wants answered up front. In the Bay Area, a single torsion spring replacement runs roughly $200,$500, including parts and labor. A dual-spring replacement (which is what most two-car doors need) typically lands in the $350,$600+ range depending on spring type, door weight, and whether any cables or hardware need replacing at the same time.
Labor rates in Silicon Valley run higher than in many parts of California, which is reflected in those numbers. When you get a quote, ask for a breakdown of parts versus labor, and ask whether the price includes both springs. because even if only one broke, the second one is usually close behind.
For context on whether repair or full replacement makes more financial sense for your door, check out our guide on when it's the right time to replace your garage door in Cupertino.
Honestly? No. and this isn't just a liability disclaimer. Torsion springs are wound under extreme tension. A spring that snaps during adjustment can cause serious injury. The tools required (winding bars, clamps, spring gauges) are specialized, and a mistake in sizing or winding can lead to a door that crashes, damages your opener, or injures someone.
This is one of the few garage door tasks where the professional cost is genuinely worth it, every time. If you want to know more about which tasks are safe to DIY versus which need a pro, our complete garage door maintenance guide draws a clear line.
1. Stop using the door. Don't keep running the opener. you'll burn out the motor trying to lift an unassisted door. 2. Don't try to manually force it open. Without spring tension, that door is genuinely heavy and can fall suddenly. 3. Call a professional for same-day service. Most reputable companies serving Cupertino and nearby Sunnyvale carry springs in their trucks and can complete the repair in one visit.
Garage Door Cupertino offers spring replacement with same-day availability. get in touch to schedule a visit and we'll get your door back on track.
Q: Can I still open my garage door if a spring is broken? A: Technically yes, but you shouldn't. The door is extremely heavy without spring assistance, and forcing the opener to lift it will likely damage the opener motor. If you need to get your car out in an emergency, you can manually lift the door from the inside. but do it carefully and have someone help you hold it open.
Q: Should I replace both springs at the same time, even if only one broke? A: Yes, in almost every case. If one spring has failed, the other is at roughly the same stage of wear. Replacing both at once saves you from a second service call in a few months. and keeps the door balanced.
Q: How do I know if I have torsion or extension springs? A: Stand inside your garage and look above the door. If you see a single horizontal spring (or two springs side by side) running along a metal bar above the door opening, those are torsion springs. If you see springs running along the horizontal tracks on the sides of the door, those are extension springs.