Garage door cables back on the drum, and the door hangs level.

The two steel cables running down each side of your garage door are easy to ignore until one of them fails. They connect the bottom of the door to the drums at the top, and as the springs wind and unwind, the cables spool and unspool to lift and lower the door evenly. When a cable goes, that even lift is gone, and a heavy door pulling on one corner gets dangerous fast.

What the lift cables actually do

Your springs store the energy that does the lifting. The cables are what transfer that energy to the door. Each cable loops onto a grooved drum at the top corner and runs down to a bracket at the bottom of the door. As the door rises, both drums wind their cable in at the same rate so the door comes up flat. The opener just guides a door the springs and cables have already balanced. Take one cable out of the equation and the door no longer has anything holding that corner.

Signs your cable is the problem

• The door hangs crooked. One bottom corner sits lower than the other, or the door looks tilted in the opening.
• You can see a frayed or snapped cable. A cable is splitting into loose wire strands, or a cut end is dangling near the bottom bracket.
• A cable is off the drum. The loose, slack cable is wadded at the top corner instead of wound neatly on the drum.
• The door jams or binds. It catches partway, pulls to one side, or grinds in the track because the lift is uneven.
• The door won't sit level when closed. There's a gap at one bottom corner that lets light and cold air in.

What causes a cable to fail

Most cable failures trace back to one of a few things. Rust is the big one in West Michigan: road salt, slush and damp garages corrode the steel strands until they fray and let go. Misalignment wears a cable against an edge it shouldn't touch, slowly cutting it. A broken spring can snap a cable in the same instant it lets go, or overload it. And plain age matters: cables are wound the same number of cycles as the door, so a door that's opened and closed for years has cables near the end of their life too.

Why cables and springs often fail together

Cables and springs work as one system. A door that's been running on a weak or partly broken spring forces the cables to carry load they weren't meant to, which frays them early. And when a torsion spring snaps, the sudden release can whip a cable right off its drum. That's why we inspect both on every cable call. If your spring broke alongside the cable, we handle both in the same visit, because fixing the cable alone just sets up the next failure. If the door also jumped its track in the process, that's an off-track repair we can take care of at the same time.

What it costs

Cable repair is priced by the job. How stuck you sound on the phone doesn't change it. The estimate is free and you see the up-front number before any work starts. If a broken spring snapped the cable, we handle both in the same visit and you see both lines first.

How the repair goes

The technician confirms which cable failed and checks the other side, the drums and the springs for the root cause. If a cable only came off the drum, we put it back on. If one is frayed or snapped, both come off and the new ones are re-spooled onto the drums. Then the door is re-tensioned so it floats level and balanced, cycle-tested under the opener, and checked that it sits flush to the floor with no gap. You get the price before we start, and the door balanced and cycle-tested before we leave. Before you run the door again, it's worth knowing the safety basics in our guide on what to do with an off-track garage door.

If a cable let go and the door's stuck open, call it in as an emergency garage door repair. Those go to the front of the line.