Water Damage Restoration & Mold Remediation in Atlanta, GA

Atlanta gets about 50 inches of rain a year, and unlike Florida or Texas it gets it all year round: no month averages less than 3.3 inches, July is the wettest at 4.75, and December through March each bring 4.5 inches or more (NOAA climate normals). On the Piedmont's red Cecil clay, which drains only moderately (USDA NRCS), that steady rain runs off into Peachtree Creek, Nancy Creek, Sweetwater Creek and the Chattahoochee.

When it comes all at once, the creeks take the houses. In September 2009, 10 to 20 inches fell in less than 24 hours at the peak of a six-day event; Sweetwater Creek reached the 500-year level, Peachtree Creek crested nearly 7 feet above flood stage, 18 metro gauges exceeded the 500-year mark, ten people died and 16,981 homes were damaged (NWS Peachtree City; NWS; USGS). Hurricane Helene in September 2024 put 6 to 14 inches across north Georgia, 10 to 12 inches on DeKalb County, a record on the South Fork of Peachtree Creek with water at the foundations of homes, and Atlanta's wettest day on record, 7.62 inches (NWS; NWS; NWS).

The rest of the year it's the basement and the pipes. Atlanta's hills put basements and crawl spaces under a large share of its homes, and the University of Georgia's own checklist tells owners to check basement humidity, the crawl space vapor barrier and the sump pump (UGA Extension). About 40% of the city's housing predates 1980 (US Census, ACS 2024), downtown still runs on a combined sewer that can overflow in very heavy rain (Georgia EPD), and December 2022's cold snap, 8°F at the airport, left Georgians with burst pipes the state insurance commissioner had to direct insurers to handle promptly (Georgia Office of Insurance).

Atlanta mornings average 81% relative humidity, 86 to 87% in July and August (NCEI climate normals), and a basement below grade stays cool and damp all summer. The EPA's guidance is that wet materials dried within 24 to 48 hours usually won't grow mold (EPA); a basement that took on water in a storm, or a crawl space without a vapor barrier, runs far past that.

Georgia regulates none of this. The state health department's indoor air page says plainly that "mold inspections, testing or remediation practices have no enforceable state or federal standards" and that local housing codes generally contain no mold standard either (Georgia Department of Public Health). What does apply is the residential contractor license (for work worth more than $2,500) and the landlord's general duty to keep a rental habitable. Our mold remediation and mold inspection pages explain what to check instead of a license.