HVAC & Air Duct Mold Removal in Lithonia, GA

Can flooding leave mold in my ducts?

Yes, and the Lithonia area has seen serious high water. During the September 2009 floods, the National Weather Service reported the Yellow River at Georgia Highway 124 cresting at 27.47 feet against a 15-foot flood stage, and the Lithonia South River gauge cresting at 13.55 feet against a 12-foot flood stage on September 21. When water reaches a crawl space, ducts and any equipment installed there can be soaked. EPA says that if materials stayed wet more than 24 to 48 hours, you should assume mold is growing. Fiberglass duct board, lined duct and insulation wrap that got wet usually have to go. Even a smaller storm that leaves the crawl space damp for days can start growth on ducts.

What does it cost to fix?

HomeGuide's 2026 national range for HVAC system or duct mold remediation is $2,000 to $10,000; local prices depend on the home. Flood-related jobs often run higher because more duct needs replacing rather than cleaning. Other drivers are crawl space height, how far growth has spread into the air handler and blower, containment and whether floor or wall repairs follow. A clear bid lists what gets cleaned, what gets replaced and how the moisture problem will be fixed.

Who handles permits and checks the company?

Lithonia is a small historic granite-quarrying town in eastern DeKalb County, about 16 miles from downtown Atlanta, and it lists building permits under its Planning and Zoning department. Ask the city whether replacing ducts or rebuilding floors and walls needs a permit before work starts. Georgia has no state mold license or certification. For the rebuild portion, check that the company holds a Georgia residential or general contractor license on the Secretary of State's GOALS Verify Now lookup.

One more local note

DeKalb Public Health says its Environmental Health Division can address indoor mold only in permitted facilities such as restaurants and hotels; for homes it offers information. Renters can put repair requests in writing and ask Lithonia's Code Enforcement about leaks a landlord has not fixed. This is general information, not legal advice.