Basement Mold Removal in Lithonia, GA

What did the 2009 floods mean for Lithonia basements?

Lithonia is a small historic granite-quarrying town in eastern DeKalb County, about 16 miles east of downtown Atlanta and a gateway to the Arabia Mountain National Heritage Area. During the September 2009 floods, the National Weather Service recorded the Yellow River at Georgia Highway 124 cresting at 27.47 feet against a 15-foot flood stage, and the South River gauge at Lithonia reaching 13.55 feet against a 12-foot flood stage on September 21.

That history is a reminder that water can reach low-lying lower levels here. A basement that took on water once, and was dried slowly or only partly, can still hold mold behind finished walls or under flooring years later. If your home has a history of water and a lingering smell, have the hidden spaces checked.

Can I handle a damp Lithonia basement myself?

Sometimes. EPA says homeowners can usually clean an area smaller than about 10 square feet, wearing gloves, goggles and an N-95 respirator. Hard surfaces like concrete and block can be scrubbed and dried. But if drywall, carpet or insulation has growth in it, or if the basement flooded, the job usually needs containment and removal of porous materials, and EPA notes moldy porous materials may need to be thrown away. People with asthma or weakened immune systems should stay out of the area.

Whatever the size, the moisture has to be fixed. Gutters, grading, a working sump and humidity below 60 percent are the basics.

What will basement mold removal cost?

Angi's Atlanta cost guide reports basement mold remediation at $587 to $3,522. HomeGuide's 2026 national ranges are $1,500 to $6,000 for a partial basement and $6,000 to $15,000 for a full one. Square footage, how much finished material comes out, flood-related damage and rebuild work all drive the total. The City of Lithonia handles building permits through its Planning and Zoning office, so ask there before rebuilding walls.

A Lithonia note

DeKalb Public Health handles mold only in permitted facilities such as restaurants and hotels, so homeowners manage cleanup directly. Renters with leaks that aren't being repaired can contact City of Lithonia Code Enforcement.