First, for the existing mold, scrubbing with a detergent solution can remove surface growth, but it won’t kill the roots embedded in porous materials like drywall. In many cases, the affected section of wall must be physically removed and replaced, as mold can penetrate deep into the material.

The critical second step is identifying and rectifying the moisture entry point. This is not a simple DIY fix. A professional inspection using tools like moisture meters and thermal imaging cameras is essential to locate the exact pathway—whether it’s capillary rise from the damp ground, cracks in the wall, or failed waterproofing. The solution may involve exterior waterproofing, improving drainage around the building’s perimeter, or installing a proper vapor barrier.

To manage the indoor environment, ensure your AC is running efficiently and set to a humidity level below 60%. Using dehumidifiers in conjunction with your AC, especially during humid periods, can help reduce the condensation that fuels mold growth. Simply cleaning the surface will never be a permanent fix until the underlying water issue is professionally diagnosed and resolved.