Broken Garage Door Spring? What to Do

It usually starts with a bang from the garage, loud enough that people mistake it for something falling. The next morning the door will not open, or lifts a few inches and stops. Nine times out of ten that is a broken torsion spring, the most common garage door failure we see across South Florida.

How to tell the spring is broken

• You heard a loud bang. A torsion spring under tension releases with a sound like a firecracker when it snaps.
• The door feels extremely heavy. Springs carry almost the whole weight of the door. Without them a double door can weigh over 150 pounds at the handle.
• There is a visible gap in the coil. Look at the spring on the shaft above the door. A broken spring shows a clean two inch separation in the middle of the coil.
• The opener strains, then reverses. Openers are not built to lift a dead door, and most modern units sense the load and stop.
• The door rises crooked. On two spring doors, one broken side lifts unevenly and can jam the tracks.

What to do right now

1. Stop using the opener. Forcing it can burn out the motor and bend the top panel, turning a spring job into a spring plus opener plus panel job.
2. Leave the door where it is. If it is closed, leave it closed. If it is stuck partway, do not walk or park under it.
3. Do not disconnect the red release cord while the door is up. With a broken spring, pulling the release on an open door lets it free fall.
4. Keep kids and pets out of the garage until the door is repaired.

What a safe fix looks like

A proper spring replacement is more than swapping the broken coil. We replace springs in matched pairs, because when one spring has reached the end of its cycles its twin is close behind. We then rebalance the door by hand so it holds steady at any height, check the cables and drums that took the shock of the snap, and safety test the opener force settings.

In South Florida, standard springs rated for about 10,000 cycles often age faster because salt air and humidity corrode the steel. High cycle springs rated for 25,000 to 50,000 cycles cost a little more and usually outlast the door itself.

What it costs

Most torsion spring replacements in Palm Beach County run about $200 to $500 for the pair, installed, balanced and warrantied. You can see how that compares to other repairs in our garage door repair cost guide, and the full service details on our garage door spring replacement page.

Torsion spring or extension spring, and how to tell which one broke

Almost every garage in South Florida uses one of two systems, and the repair is different for each. A torsion spring sits on a metal bar mounted horizontally above the door opening. Most doors built here since the 1990s use one or two of them. When a torsion spring breaks you will usually see a clean gap of two or three inches in the coil, as if someone cut it, and you may have heard a bang loud enough to be mistaken for something falling in the garage.

Extension springs run along the horizontal tracks on either side of the door, stretched out rather than coiled. Older Boca Raton homes, especially the 1960s and 1970s builds around Boca Raton Square and Winfield Park, still run these. A broken extension spring usually hangs loose, and the door often sits crooked because one side lost its lift while the other did not.

If you cannot see either clearly, do not go looking with the door up. Check from a safe distance with the door closed. Either way the answer is the same, the door should not be operated until the spring is replaced.

Can you still open the door with a broken spring?

Physically, sometimes. Safely, no. The springs carry essentially the entire weight of the door, and a double garage door weighs between roughly 150 and 250 pounds. With the spring gone, that weight is held by nothing but the cables and whatever the opener can drag. Lifting by hand means holding that full load yourself, and if it slips it comes down fast.

The opener is the other casualty. A garage door opener is built to guide a balanced door, not to lift a dead weight. Running it against a broken spring is the single most common way people turn a repair that costs a few hundred dollars into one that also needs a new opener.

Why springs break, and roughly when yours is due

Springs are rated in cycles, one cycle being one full open and close. A standard spring is rated near 10,000 cycles. A household that opens the door four times a day reaches that in about seven years, and a busy family with two drivers can get there in five. So a spring breaking is usually not a defect, it is the part reaching the end of a life measured in use rather than years.

Two local factors shorten it. Salt air east of Federal Highway pits the steel and rusts the coils from outside in, which is why coastal Boca and Highland Beach doors tend to fail earlier than inland ones. And heat cycling in an unconditioned garage works the metal every day. When one spring on a two-spring door breaks, the second one is the same age and has done the same work, which is why replacing them as a pair is standard practice rather than an upsell.

Why this specific repair is not a DIY job

Most garage door work is approachable. This part is not. A torsion spring under tension stores a serious amount of energy, and it is released through winding bars in a controlled sequence. The failure mode when it goes wrong is not a scraped knuckle. Winding bars have broken wrists and worse. The tools are also specific, correct-diameter winding bars and a properly sized replacement matched to the door weight, not a hardware store approximation.

The second reason is that a mismatched spring will work and still be wrong. A spring rated for the wrong weight leaves the door unbalanced, which quietly destroys the opener over the following months and puts the whole system out of adjustment.

How long the repair takes

A standard torsion pair on a residential door is usually a one visit job of about an hour on site. That includes removing the broken spring, fitting the matched pair, winding to the correct tension, rebalancing the door so it holds position halfway, and safety testing the reverse mechanism. Extension spring systems are similar, with safety cables added if the door does not already have them. We carry the common Boca sizes on the truck, which is why most spring calls here finish the same day they come in.