Mold in Walls & Drywall in Grayson, GA

Our house is fairly new. How did mold get into the wall?

Newer homes get wall mold too. Grayson is a small eastern Gwinnett County city on State Route 20, about 27 miles from downtown Atlanta, and its population grew sharply after 2000. In newer construction, the usual sources are a nicked or loose supply line behind a vanity, a shower valve that was never fully sealed, a washing machine hose, window flashing that lets in wind-driven rain, or an AC condensate line that clogs and backs up. Modern walls are tighter, so once water gets in, it tends to stay. Drywall paper and the dust on it give mold plenty to feed on while the paint side still looks fine.

A moisture meter or a small inspection cut is usually the quickest way to find out how far the water spread. EPA says sampling is usually unnecessary when mold is visible.

Could drainage around the house be the cause?

It can be. Red clay soils across metro Atlanta drain slowly, and new lots often have fresh grading that settles over time, sending water toward the foundation. Gutters that empty right beside the house add to it. The lower part of an exterior wall, or any finished below-grade wall, then stays damp after each storm. The City of Grayson handles stormwater drainage concerns through City Hall at 770-963-8017, which can be a starting point if neighborhood drainage is sending water your way.

Who issues permits, and what about rentals?

For the rebuild, the City of Grayson's Planning and Zoning office at City Hall, 475 Grayson Parkway, lists a building permit and zoning application portal; ask whether your drywall or framing work needs a permit. Renters should notify the landlord in writing and keep a copy. Georgia law (O.C.G.A. 44-7-13) requires landlords to keep the premises in repair, and Georgia Legal Aid explains next steps if repairs do not happen; ask City Hall which office handles property maintenance complaints. This is general information, not legal advice.

A local note

GNR Health's online complaint categories do not list residential rentals or mold, so for health questions, start with Georgia DPH's mold page and a health professional.