What Rust Does, Part by Part
Springs. Rust roughens the coils, adds friction and creates weak spots. A rusty spring tends to break sooner and louder. See broken springs.
Cables. Steel cable rusts from the inside, often near the bottom corner where water sits. Frayed strands mean it's close to snapping. See loose cables.
Rollers and bearings. Rusty bearings grind and stiffen, making the door heavy for the opener.
Track brackets and bolts. Rusted fasteners loosen and shear. In a storm, the track can pull off the wall.
Bottom of the door. Steel doors rust through first along the bottom edge, where the seal holds water against the panel.
Signs to Look For
- Orange or flaky coils on the spring bar.
- Brown stains running down the track or the wall below the brackets.
- A door that suddenly feels heavier or louder.
- Bubbling paint or holes along the bottom panel.
What Holds Up Better Here
Ask about coated or galvanized springs, galvanized or stainless cable, sealed bearing nylon rollers and stainless fasteners. They cost more up front and last longer close to salt water.
When the door itself is rusting through, look at doors with heavier coatings, or composite and fiberglass doors that don't rust at all. See garage door replacement.
Fix the Parts or Replace the Door
Rusty springs, cables, rollers and brackets are all replaceable, and on a door with sound panels that's usually the right call.
It changes when the panels themselves are rusting through. Patching a bottom section rarely lasts, and matching an old panel is often impossible.
A good rule: if the door is 15 years old or more and the repairs would run a quarter of a new door's price or more, put that money toward a new door instead. The new door cost guide shows typical ranges.
Slowing It Down
A few habits help a lot. Rinse the outside of the door with fresh water now and then, especially after a storm or a windy week on the water.
Lubricate the hinges, rollers and bearings with garage door spray every few months, not just once a year. Keep the bottom seal in good shape so water doesn't sit against the panel.
A yearly check by a technician catches rusty cables and loose brackets before they fail.
Seeing rust? Send the form or call (850) 555-0147.