Black mold in closet: DIY clean or hire pro?« Back to Previous Page

Black mold in a closet on an exterior wall is a common issue in Dubai villas, often caused by thermal bridging where the cold interior wall meets the humid outdoor air, creating condensation. The high humidity we've been experiencing accelerates its growth.

For a small patch (under one square meter), you can clean it yourself. Do not use bleach, as it only removes surface color and can worsen the problem by adding moisture. Instead, use a dedicated EPA-approved fungicidal cleaner or a simple solution of distilled white vinegar and water. Scrub the area, let it dry completely, and address the moisture source. Improve air circulation in the closet, ensure the AC is draining properly, and consider using a moisture-absorbing product like silica gel.

However, if the mold returns quickly after cleaning, the patch is larger than a square meter, or the drywall feels soft or damp, the moisture issue is likely inside the wall cavity. This requires a professional inspection to identify the source, which could be a small leak or significant condensation. Remediation in such cases involves controlled removal of affected materials to prevent spore dispersal. The cost for professional assessment and remediation varies significantly based on the extent of the hidden damage, so it's best to request an on-site evaluation for an accurate scope and quote.