How to Tell If Your Garage Door Spring is Broken
Safety Warning: ⚠️ SAFETY WARNING Never attempt to open a garage door with a broken spring manually unless you understand the risks: • Doors weigh 200-400 pounds • Broken springs remove all counterbalance force • Doors can fall rapidly and cause crush injuries • Cables under tension can snap and cause lacerations <strong>Do not attempt repairs yourself.</strong> Garage door springs store 200+ pounds of lethal force. DIY spring work sends people to the ER every week. Call 541-203-7676 for same-day spring replacement in Bend, Redmond, and Sisters. This guide is for diagnosis only. Brokentop Garage Doors (CCB #209697) is not liable for injuries from DIY attempts.
What You'll Need
Tools
- Visual inspection (no tools needed)
- Flashlight (optional)
Materials
- None - this is diagnostic only
Step 1: Check for the Loud Bang
This is the question I ask every single caller: did you hear a loud bang? When a torsion spring breaks, it releases everything it's got all at once. Two hundred-plus pounds of stored energy, gone in a split second. The sound is unmistakable — a sharp crack that sounds like a gunshot or a firecracker going off in your garage. I've had customers tell me their neighbors called the police. If you heard that sound, your spring is broken. You can skip ahead to step 5 to see what to do next. Diagnosis complete. Didn't hear anything? That's possible too. Springs can fail gradually — a slow crack that finally gives way while nobody's home, or a partial failure where the spring is still in one piece but has lost most of its tension. Keep going to step 2.Pro Tip: In Bend, springs break most often during temperature extremes. January cold snaps and July heat waves are peak failure seasons. Metal contracts and expands, weakening the coils.
Step 2: Look for a Visible Gap in the Spring
Walk into the garage and look up. Right above the door you'll see either one or two big springs wrapped around a horizontal metal shaft. Those are your torsion springs. A broken one is obvious. There'll be a gap in the coils — usually 2 to 3 inches — where the metal snapped clean through. You can't miss it once you know what you're looking at. Most residential doors have two springs, one on each side of center. If one broke, you'll see one intact spring and one with a visible gap. Sometimes both break, but usually it's just one. If your door has extension springs instead — those are the long skinny ones that run parallel to the tracks along each side — a broken one will be hanging in two pieces, often caught by a safety cable running through the center. See a gap or a break? That's your answer. Skip to step 5. Everything looks intact? The spring might be failing without a clean break. Move on to step 3 — this is where you'll catch the subtle failures.Pro Tip: Take a photo of the broken spring before calling a repair company. We can often identify the replacement spring size from a good photo and have it ready when we arrive.
Step 3: Test the Door Balance
This is the definitive test, and it only takes a minute. First, pull the red emergency release cord hanging from your opener. That disconnects the trolley so you can move the door by hand. Now grab the door handle — or the bottom edge — and lift it to about waist height. Three, four feet off the ground. Let go. A healthy door stays put. It might drift an inch or two, but it basically floats there. That's what properly tensioned springs do — they counterbalance the weight of the door. A door with a broken spring drops. Fast. Because you're no longer lifting a counterbalanced door — you're holding up 250 to 400 pounds of steel and wood with nothing helping you. The moment you let go, gravity wins. If your door drops like a rock when you release it, the spring is broken or has lost nearly all its tension. I'd say 95 times out of 100, rapid drop means broken spring. The other 5 percent is severely under-tensioned springs that need professional adjustment.Safety: Do not attempt to lift the door all the way open with a broken spring. The weight is extreme. We've seen people throw out their backs, drop doors on cars, and crush fingers trying this.
Step 4: Check for These Additional Symptoms
Still not sure? Here are the other giveaways I see on service calls: Opener runs but the door barely moves: Your opener motor is designed to move a counterbalanced door — maybe 15 pounds of effective weight. Without spring assist, it's trying to deadlift 300 pounds. It'll strain, make noise, and either stall out or auto-reverse. Door opens crooked, one side higher than the other: This means one spring broke but the other is still working. The good spring pulls its side up while the broken side drags. Stop using the door immediately — this puts enormous stress on the tracks and panels. Cables hanging loose or off the drums: When springs break, the cables lose tension and slip off the cable drums at the top corners. You'll see cable hanging down or pooled on the floor. Door opens about six inches then reverses: That's your opener's force sensor doing its job. It detects the door is way too heavy and reverses to protect the motor. Newer LiftMaster and Chamberlain units are especially good at this. Older openers aren't as smart — they'll just burn themselves out trying. Any of these? Spring failure. Time for step 5.Pro Tip: Modern openers (LiftMaster, Chamberlain made after 2010) have smart force detection. They'll refuse to open a door with broken springs to protect the motor. Older openers just burn out trying.
Step 5: What to Do Next - Call a Professional
You've confirmed it. Here's what to do and what not to do. Don't keep trying to use the door. Every time you run the opener against a broken spring, you're grinding the motor. That's a $300 to $400 repair on top of the spring replacement. I've had customers burn out brand new openers in a single weekend because they kept hitting the button hoping something would change. Don't try to force it open manually. I covered this already, but it bears repeating. A door without counterbalance is brutally heavy and it does not stay up on its own. People get hurt. Do call a professional. Spring replacement is a 45-minute job for us. We bring the correct springs — most doors need both replaced, not just the broken one, because the other spring is the same age and will fail within a few months. Total cost in the Bend area runs $250 to $350 depending on spring type. We usually have same-day or next-day availability. Call 541-203-7676 and we'll get you on the schedule. If your car is stuck in the garage, mention that — we prioritize those calls. What we do when we get there: release the old tension safely, pull the spent springs, install new high-cycle springs rated for 25,000 or more cycles, wind to proper tension, test the balance, lubricate everything, and verify the safety systems are working. The whole job comes with a one-year labor warranty.Pro Tip: Ask for high-cycle springs (25,000-100,000 cycle rating). They cost $20-40 more but last 10-15 years in Bend's climate vs. 5-7 years for standard springs. Best investment you can make.
Troubleshooting
I heard a bang but the springs look fine
Check cables. Sometimes cables snap instead of springs - same loud sound. Look for frayed or broken cables at the top corners of the door.
Only one spring broke. Can I just replace that one?
Technically yes, but both springs are the same age. The other will break within 3-6 months. Replacing both now saves you a second $170 service call in a few months.
Door opens fine but closes crooked
Likely one spring is weaker (partially failed) but not fully broken. Both springs need replacement soon. Uneven operation damages door panels and can cause cable issues.
Spring looks broken but door still opens with the opener
Possible with extension springs (side-mount springs). The door weighs less without counterbalance, but the opener can still lift it. This burns out the opener motor quickly - replace springs ASAP.
Frequently Asked Questions
How long do garage door springs last?
Standard springs: 5-7 years (10,000 cycles). High-cycle springs: 10-15 years (25,000+ cycles). Bend's extreme temperatures (-10°F to 110°F) shorten lifespan by 20-30% compared to mild climates. Regular lubrication (every 3 months) extends life significantly.
Why did my spring break?
Normal wear. Every cycle (open + close = 1 cycle) weakens the spring slightly. Most springs break at 7,000-12,000 cycles - right when they're rated to fail. Temperature extremes accelerate failure. Lack of lubrication causes early failure. Rust from moisture reduces lifespan by 50%.
Can I prevent spring failure?
Not entirely, but you can extend lifespan: 1) Lubricate springs quarterly with white lithium grease. 2) Replace springs proactively at 7-8 years even if not broken. 3) Upgrade to high-cycle springs. 4) Keep garage dry - moisture causes rust. We offer preventive maintenance plans ($99/year) that typically extend spring life 30-40%.
Is spring replacement covered by homeowner's insurance?
Rarely. Most policies exclude "normal wear and tear" maintenance items. Springs are considered consumables like HVAC filters. However, if the broken spring caused secondary damage (door fell and dented a car), that damage might be covered. Read your policy or call your agent.
How much does professional spring replacement cost in Bend?
Our pricing: Standard springs $250. High-cycle springs $295. Emergency same-day service +$75. Two-car garage (two doors) approximately double. We're competitive with other licensed CCB contractors in Central Oregon. Unlicensed handymen charge $150-180 but carry no insurance.
What happens if I ignore a broken spring?
You can't use the garage door (or you burn out the opener trying). Your car is trapped. You can't access your garage. If you force the manual operation, you risk serious injury. Broken springs don't "heal" - professional replacement is the only solution.
Want Us to Handle This?
Licensed CCB #209697, 10+ years in Bend. Same-day service Mon–Fri when you call by 2 PM. Parts on the truck for most repairs.
Serving Bend, Redmond, Sisters, Sunriver, La Pine & all of Central Oregon