What Just Happened? Signs Your Spring Snapped
You heard a loud bang from the garage. Sounded like a gunshot or a firecracker. Your door won't open, or it feels impossibly heavy. One side hangs lower than the other. That's a broken torsion spring.
Torsion springs live above your door, tightly wound with thousands of pounds of tension. After 7-10 years or roughly 10,000 cycles, metal fatigue wins. The spring snaps. The bang you heard was years of stored energy releasing in a split second.
Extension springs (the ones that run along the tracks) break differently. They're under less tension, so the sound is quieter. But the result is the same: your door won't work. One side might sag. The opener motor might hum but the door stays put.
In Miami's humidity, springs corrode faster. Salt air from the coast accelerates rust. Springs here often fail closer to the 7-year mark than 10. If your home is in Coral Gables or anywhere near the water, expect shorter lifespans.
Do NOT Try to Open the Door
Your opener won't lift a door without working springs. The springs do 90% of the lifting. The motor just nudges things along. When a spring breaks, the door weighs its full 150-300 pounds.
Forcing the opener can burn out the motor. You'll hear grinding, smell burning plastic, see sparks. Now you need a motor AND springs. Don't make it worse.
Don't try to manually lift the door either. Even if you disengage the trolley (that red emergency handle), a door without springs is dead weight. You can hurt yourself. The door can slam down on your car, your hands, or worse.
Leave it closed. Disconnect the opener if you can. Wait for a pro.
Why Your Spring Broke (And Why It's Normal)
Springs break because they wear out. Every time you open or close the door, the spring cycles once. After 10,000 cycles, the metal fatigues. Microfractures accumulate. One day it snaps.
If you open your door four times a day, that's 1,460 cycles a year. Ten thousand cycles = about seven years. Heavy doors or cheap springs fail faster. High-cycle springs (rated for 25,000-50,000 cycles) last longer but cost more upfront.
Miami humidity speeds corrosion. Moisture works into the coils. Rust weakens the steel. Coastal homes see this even faster. If your springs are rusty brown instead of dark gray, they're overdue.
Cold snaps can trigger breaks. We don't get many freezes, but when temps drop into the 40s overnight, metal contracts. A spring already near failure can snap when you open the door that first cold morning.
Can You Fix It Yourself? (Short Answer: No)
Broken spring repair is not a DIY job. Torsion springs hold 200-400 pounds of tension even when broken. The winding cone (where the spring attaches) can spin violently if you don't know what you're doing. People have lost fingers. Others have taken winding bars to the face.
You need specialized tools: winding bars (not a screwdriver), the right socket set, C-clamps, and a ladder tall enough to work safely above the door. You also need to know which spring to buy—diameter, length, wire gauge, and wind direction (left or right) all matter. Order wrong and it won't fit or balance the door.
Extension springs are slightly safer but still dangerous. They're under tension and can whip when they break. Replacing them requires removing cable and pulleys while the door is supported. One slip and the door falls.
If you're handy and determined, YouTube has tutorials. But most people who try this end up calling a pro anyway—often after making things worse. Save yourself the trip to urgent care.
How Professional Spring Repair Works
A licensed tech shows up with the right springs on the truck. Torsion springs come in dozens of sizes. Pros stock the common ones and can get oddball sizes same-day from local suppliers.
First, they secure the door so it can't move. They disconnect the opener. Then they carefully release any remaining tension in the broken spring using winding bars. This is the dangerous part. Pros do it dozens of times a week.
They remove the old springs, slide new ones onto the torsion bar, and wind them to the correct tension. Each quarter-turn of the winding cone adds about 50 pounds of lifting force. Over-tension and the door flies up. Under-tension and it won't stay open.
Finally, they test the balance. A properly balanced door should stay put when you lift it halfway and let go. If it drifts, the tech adjusts. The whole job takes 45-90 minutes depending on door size. For spring repair in Miami, ASAP techs carry high-cycle springs rated for Florida's humidity.
What It Costs and What to Expect
Spring replacement typically runs $200-$400 for a standard two-car garage door. Oversized doors, triple-car garages, or high-cycle springs cost more. Beware of prices that sound too good. Cheap springs fail fast. You'll pay twice.
At ASAP, we quote a flat rate before starting work. No surprises. The price includes the service call, labor, new springs, and a 1-year warranty on parts and labor. No overtime fees if we come out at 10 p.m. The price is the price.
Expect same-day service across Miami-Dade and Broward. We stock trucks with common springs. Most calls are done the day you phone. If we need to order a specialty spring, we'll tell you upfront and get it fast.
After repair, test the balance yourself. Lift the door halfway (with the opener disconnected). It should stay. If it falls or shoots up, call back. The warranty covers adjustments.
Prevent the Next Break (Or at Least Delay It)
You can't stop springs from wearing out, but you can slow the process. Spray them twice a year with white lithium grease or silicone spray. This displaces moisture and reduces friction. Don't use WD-40—it's a solvent, not a lubricant.
Keep the garage dry. If you see condensation on the springs, run a dehumidifier. Coastal homes benefit from stainless steel or powder-coated springs. They cost 20-30% more but resist corrosion.
Replace both springs at once, even if only one broke. The other spring is the same age and has the same wear. It'll break soon. Replacing both now saves you a second service call in six months.
Upgrade to high-cycle springs. Standard springs last 10,000 cycles. High-cycle springs (25,000-50,000 cycles) can last 15-25 years. The upcharge is $50-$100. Do the math: that's decades more life.