Loud Bang from the Garage
A sudden loud bang usually means a torsion spring has snapped. The stored energy releases instantly, creating a startling noise even when the door is not in use.
Torsion and extension spring replacement by trained technicians. Same-day emergency service, 7 days a week.
Broken garage door spring? CMC Door Service provides fast, same-day torsion and extension spring repair across Miami-Dade, Broward & Monroe counties. Licensed, insured, and 20 years in the trade.
A broken garage door spring is one of the most common and most dangerous garage door failures. Know these warning signs.
A sudden loud bang usually means a torsion spring has snapped. The stored energy releases instantly, creating a startling noise even when the door is not in use.
Springs counterbalance the weight of your door (often 150-300+ lbs). Without a working spring, the opener cannot lift the door, or the door will only open 6 inches.
Look at the spring bar above your door. If you see a visible gap or separation in the torsion spring coils, the spring has broken and needs immediate replacement.
If your door slams shut, closes unevenly, or appears crooked, one or both springs may be failing. This is a serious safety hazard requiring immediate attention.
When a spring breaks, the cables that lift the door often become loose or unwind from the drums. Loose cables tangled around the shaft indicate spring failure.
We repair and replace all types of residential and commercial garage door springs with premium, high-cycle components.
Mounted on a steel shaft above the door opening, torsion springs use torque to lift the door. They are the industry standard for most residential and commercial garage doors.
Mounted along the horizontal tracks on each side of the door, extension springs stretch and contract to counterbalance the door weight. Common on older and lighter doors.
For warehouses, loading docks, and high-traffic commercial doors, we install heavy-duty springs rated for 50,000 to 100,000+ cycles of continuous daily operation.
Professional spring replacement done right, safely and efficiently by licensed technicians.
We inspect the spring system, measure wire gauge, length, and inside diameter to ensure exact-match replacement.
Using professional winding bars, we safely release tension from the broken spring and remove it from the torsion bar.
New springs are installed, wound to the manufacturer-specified number of turns, and secured to the anchor bracket.
We balance the door so it stays at any point when partially open, lubricate all moving parts, and test safety systems.
Full operational test including auto-reverse, photo-eye alignment, and opener force adjustment for safe daily operation.
Broken spring? We respond fast. Most spring repairs are completed the same day you call, getting your door operational again quickly.
No hidden fees or surprise charges. We provide a clear quote before any work begins so you know exactly what to expect.
We recommend and install high-cycle springs (25,000+) that last 2-3x longer than standard springs, saving you money long-term.
Fully licensed and insured in Florida. Every technician is trained in safe spring handling procedures. Your property is protected.
We repair springs on Amarr, Clopay, Haas, Raynor, Wayne Dalton, CHI, and all other garage door brands, residential and commercial.
Two decades of spring repair expertise across South Florida. We have seen every type of spring failure and know how to fix it right.
Do not wait. A broken spring means your door is a safety hazard. Call CMC Door Service for fast, professional spring repair across South Florida.
Every photo in this section is our own work in Miami-Dade, Broward and Monroe County.
What a proper installation and service visit actually involves, step by step.
Look at the torsion spring on the shaft above the door. An intact spring is one continuous coil; a broken one has a gap of two or three inches where the two halves have sprung apart, and the coils either side of the gap are often splayed and shiny where the metal tore. You will usually have heard it go: a broken spring lets go with a bang like a gunshot, and after that the door is far too heavy to lift by hand and the opener strains or will not move it at all. Do not use the door until it is replaced.
A standard torsion spring is wound for about 10,000 cycles, and one cycle is the door going up and coming back down. A household that opens the door four times a day gets roughly seven years out of it; a busy family with the garage as the main entrance gets closer to four. Salt air shortens it further, which is why springs in coastal Miami-Dade and the Keys fail earlier than the same spring inland. High-cycle springs are wound for two to three times the life and cost more up front, and on a door you use constantly they are the cheaper choice over ten years.
From our published Miami cost guide: $350 on a single-car door, and $700 on a double, which runs a matched pair. High-cycle springs cost more up front and last two to three times longer. You get an upfront price before any work starts, and the estimate is free. Call (786) 315-9238.
We strongly advise against DIY spring replacement. Garage door springs are under extreme tension and can cause severe injury or death if mishandled. Always hire a licensed professional with proper tools and training.
Standard torsion springs are rated for approximately 10,000 cycles. For a household that opens their door 4 times daily, that is about 7 years. High-cycle springs rated at 25,000-50,000 cycles can last 15-25 years.
Yes, we strongly recommend replacing both springs simultaneously. If one spring has broken, the other is likely near the end of its lifespan. Replacing both ensures balanced operation and prevents a second service call.
Absolutely. We offer same-day emergency spring repair across Miami-Dade, Broward, and Monroe counties. Call (786) 315-9238 for immediate service.
Torsion springs mount on a bar above the door and use twisting force to lift. Extension springs mount along the horizontal tracks and stretch to counterbalance weight. Torsion springs are generally safer, longer-lasting, and provide smoother operation.
Springs are matched to the door, never picked off a shelf. The right set comes from the door's weight, its height and the drum size, which means measuring the wire diameter, the inside diameter and the wound length of the old spring before anything is ordered. A spring sized for a lighter door will still lift, but it runs out of cycles years early and leaves the opener straining, which is why a door that ate a spring inside two years usually had the wrong one on it. The wire and inside diameter are measurable at the cone, so read us the numbers on the phone and we will tell you whether they match your door.
Three numbers describe a torsion spring: the wire diameter, the inside diameter of the coil, and the wound length. Wire diameter is the one that matters most and the one people get wrong, so measure across twenty coils and divide by twenty rather than trying to gauge a single wire. The inside diameter is usually stamped on the stationary cone, and the length is measured on the coil itself, not on the shaft. Read those three to us with the door height and we can tell you before we arrive whether what is up there belongs on your door.
No, and of everything on a garage door this is the one where the wrong part is genuinely dangerous. A torsion spring is a calculated component: the wire diameter, the inside diameter, the wound length and the wind direction all follow from your door's weight, its height and the size of the cable drums. Wind direction alone rules out swapping them around, because on a two spring setup the left and right springs are wound opposite ways, and the cones are color coded for it, red for the right hand wind and black for the left. A spring that is close but not right will still lift the door for a while, then run out of cycles years early and leave the opener straining. The two questions above cover how to read the sizing off the spring you already have.
Call now or request a free estimate online. Same-day service available across Miami-Dade, Broward and Monroe County.