Rust Stain Removal in Charlotte, NC

Rust stain removal is one of the most common calls we get in Charlotte, and the culprit is almost always one of three things: an irrigation head running well water with high iron content, a fertilizer with iron supplement that got tracked onto concrete, or Charlotte's signature red clay washing across hardscape after a thunderstorm. You see the orange streaks everywhere — irrigation arcs across driveways in Ballantyne, fertilizer halos around Bermuda lawns in Steele Creek, and red clay runoff stains on pool decks in Weddington and Marvin.

Rust requires oxalic acid based chemistry — chlorine and sodium hypochlorite will not touch iron oxide and can actually set the stain deeper. We apply a buffered oxalic cleaner, let it dwell 5 to 10 minutes without drying, agitate, and rinse at moderate pressure. For stains under irrigation arcs we also recommend a rust inhibitor injected at the well head or a sulfur filter, because cleaning a driveway that gets re-stained every Tuesday morning isn't a long-term fix. Most stains lift in a single pass; deeper iron deposits in older concrete sometimes need a second application.