2026-03-18 6 min read
It usually happens at the worst possible time. You're heading out on a summer morning, tourists already clogging Route 28, and your garage door refuses to open. Or you're returning from Harwich after a winter storm and you hear a loud bang from the garage. something like a gunshot. You walk in and find the door won't budge.
In most cases like this, the culprit is a failed garage door spring. It's one of the most common garage door repairs we handle across Chatham, and it's almost always preceded by warning signs that homeowners either missed or ignored.
Here's what to watch for. and what to do when you see it.
Before getting into the warning signs, it helps to understand what you're dealing with. Your garage door weighs anywhere from 150 to 300+ pounds depending on the material and insulation. The springs. either a torsion spring mounted horizontally above the door, or extension springs running along the upper tracks on each side. are what make it possible to lift that weight with a light motor or even by hand.
Springs are rated in cycles, not years. One cycle is one full open-and-close. A standard spring is rated for around 10,000 cycles, which translates to roughly seven to ten years for a household that uses the garage door two to four times per day. High-cycle springs rated for 25,000 cycles or more cost more upfront but last considerably longer. a worthwhile upgrade for Cape Cod homes where the door may see heavy seasonal use.
In Chatham's coastal climate, that lifespan gets compressed. The same humidity and salt air that corrodes hinges and tracks also works on your springs, making them brittle and prone to snapping ahead of schedule.
This is often the first sign homeowners notice. If your garage door suddenly feels unusually heavy or difficult to lift. even with the opener engaged. the springs may no longer be doing their job. Springs are designed to carry most of the door's weight. When they weaken or begin to fail, that weight shifts entirely to the opener motor or to your arms if you're lifting manually. Don't ignore this.
When a torsion spring breaks, it releases a significant amount of stored tension all at once. The sound is sharp and sudden. often compared to a gunshot or a car backfiring. If you hear this sound and your door stops working properly afterward, a broken spring is almost certainly the cause. Stop using the door and call a technician before you attempt anything else.
Your garage door should remain fully open without assistance once it reaches the top. If it begins to slide back down on its own, or if it won't stay open at all, that's a strong indication that your springs have lost tension or partially failed. This is also a safety hazard. a door that drops unexpectedly can cause serious injury.
Take a look at your torsion spring (the horizontal bar assembly above the door opening). If you notice a visible gap in the coils, the spring has snapped. A broken spring isn't capable of supporting the door's weight and needs to be replaced right away. This is one sign you can catch with a simple visual check from the garage floor. no climbing required.
A balanced door moves up and down smoothly and evenly. If it looks crooked while moving, rises unevenly, or gets stuck partway, one of the springs may be weaker or completely broken. This uneven tension forces other components. cables, rollers, tracks, the opener. to compensate, and the cascading damage adds up quickly. If you've been noticing your door behaving oddly, our FAQ page covers some common diagnostic questions.
Over time, springs corrode due to moisture exposure. A rusty spring is more brittle and far more prone to snapping. In Chatham specifically, where humidity levels stay consistently high throughout the year and salt air accelerates oxidation, springs tend to show corrosion earlier than in inland Massachusetts communities. Applying a silicone-based lubricant to the spring coils every three to six months slows this process. but once you see significant rust, replacement is the right call.
Your opener is not designed to lift a door's full weight. If the motor seems to strain, hum loudly, or quit halfway through lifting, it's often compensating for a broken or weak spring. Continuing to run the opener in this condition leads to motor burnout and can turn a $200,$400 spring replacement into a $500+ opener replacement on top of it. Address the spring first.
Let's be straightforward about this: garage door spring replacement is genuinely dangerous without the right tools and training. Springs store enormous mechanical energy under tension. When released improperly, they can cause serious injury. broken fingers, facial injuries, and worse. A 150 to 300-pound door without spring support can drop suddenly and without warning.
Even if you're handy around the house, this is one repair that should always be handled by a trained professional with calibrated winding bars and the correct replacement components matched to your door's weight.
If you're thinking about the safety systems side of things, our post on battery backup systems is also worth a read. particularly relevant for Chatham homes that lose power during nor'easters and coastal storms.
A good technician will do more than swap the spring. After replacing the failed component, they should test door balance and opener performance, lubricate moving parts, and inspect cables, rollers, and hardware for any related wear. Most spring replacements take 60 to 90 minutes.
One important note: most garage doors have two springs installed at the same time. When one breaks, the second is usually close behind. they've experienced the same wear cycles. Replacing both at once while the technician is already there saves you a second service call in the near future.
Garage Door Chatham handles spring replacements throughout Chatham and the surrounding area, including Dennis, Yarmouth, and Barnstable. If you're seeing any of the warning signs above, don't wait for a full failure. get in touch with our team and we'll assess the situation before it turns into an emergency. You can also explore our full range of garage door services if you're curious what a comprehensive tune-up involves.
Should I replace both springs even if only one broke? Yes, in almost every case. When one spring fails, the other has typically completed a similar number of cycles and is near the end of its useful life. Replacing both at the same time costs only marginally more than replacing one, and it prevents a second service call. and second labor charge. in the near future. It also keeps the door properly balanced, which protects your opener and other hardware.
How do I know if I have torsion springs or extension springs? Torsion springs are mounted horizontally on a metal shaft directly above the garage door opening. you'll see one or two thick coiled springs centered above the door. Extension springs run horizontally along the upper tracks on each side of the door and look like long, stretched coils. Newer homes and most modern door systems in the Chatham area use torsion springs, which tend to be more durable and balanced. If you're unsure, a quick look at the overhead area of your garage will tell you.
My door worked fine this morning but won't open tonight. Could it be a spring? Absolutely. springs often break while the door is stationary, not during use. If your opener runs but the door barely moves or feels extremely heavy, disconnect the opener using the emergency release cord and try lifting the door manually. If it's nearly impossible to lift even a few inches, a broken spring is the most likely cause. Don't force it. call a professional.