Basement Mold Removal in Marietta, GA

Do Marietta's creeks affect basements?

They can. Marietta, the Cobb County seat about 17 miles northwest of downtown Atlanta, has Sope Creek and Sewell Mill Creek nearby. In the September 2009 floods, National Weather Service gauges listed at Marietta recorded Sewell Mill Creek at 13.26 feet against a 12-foot flood stage on September 21 and Sope Creek at 18.35 feet against a 12-foot stage. Homes on lower ground near creeks can take on water in extreme storms. Far more often, though, basement mold comes from the steady stuff: storm water soaking clay against a buried wall, gutters overflowing and summer humidity condensing on cool concrete.

How is a basement in an older Marietta home cleaned out?

Marietta is built around Marietta Square and has six historic districts, including the Whitlock Avenue, Church-Cherokee Streets and Northwest Marietta districts. Older houses commonly have masonry foundations and lower levels finished long after they were built. A remediation company typically:

• Locates the water source and measures moisture in walls and slab
• Seals the area with plastic and runs filtered air
• Removes moldy drywall, paneling, insulation and carpet
• Cleans and dries brick, block, stone and framing
• Confirms the area is dry and clean before rebuilding

EPA says not to paint or caulk over mold. The City of Marietta Building Inspection Division enforces the state minimum codes for remodels, so check with the city about any permit the rebuild needs.

What does basement mold removal cost in Marietta?

Angi's Atlanta cost guide reports basement mold remediation at $587 to $3,522, at about $12 to $29 per square foot. HomeGuide's 2026 national ranges run $1,500 to $6,000 for a partial basement and $6,000 to $15,000 for a full one. Expect older construction, finished space and any drainage or foundation work to push toward the higher end. Get a written scope and ask whether the company holds a Georgia residential or general contractor license.

A note for Marietta renters

Cobb & Douglas Public Health does not handle mold in private homes or rentals, but it says tenants with mold from a mechanical or structural failure may contact the local building inspections department about the moisture problem.