DIY cleaning with bleach is not recommended; it is mostly water and can worsen the problem by adding moisture. Use a dedicated fungicidal cleaner instead. Always wear an N95 mask, gloves, and goggles to avoid inhaling spores. The key is fixing the source—whether it’s a leaking pipe, seepage from the villa’s exterior, or inadequate insulation causing condensation from your AC.

Given Dubai’s high humidity and the persistent smell, a professional assessment is advisable. They use moisture meters and thermal cameras to locate the hidden water source a visual inspection will miss. For a small closet remediation, costs vary widely based on the extent of the damage behind the wall. Reputable companies provide a detailed scope of work and lab-verified post-remediation report, which is essential for your peace of mind and property records.