Given that the mold has spread from the wall and you’ve noticed health symptoms, a professional inspection is strongly recommended before any DIY attempt. Disturbing black mold without proper containment can aerosolize spores, potentially worsening the air quality and your children’s coughing. A certified inspector, ideally with their own microbiology lab, can identify the exact species and the moisture source—which is critical for a permanent solution.

The UAE’s high humidity and constant AC use create perfect conditions for mold if a minor leak exists. A pro will use moisture meters and thermal cameras to find the root cause. While a small surface clean might be a DIY job, your case involves hidden growth, which typically requires professional containment, HEPA vacuuming, and antimicrobial treatment to ensure it doesn’t return. The investment in proper remediation is usually worth it for health and to prevent more costly structural repairs later.