Black mold from AC leak: DIY or hire pro in Dubai?« Back to Previous Page

That black patch is likely Stachybotrys or another toxigenic species common in Dubai's AC systems, and it's a legitimate health concern, especially for a child with allergies. The leak has created a persistent moisture source inside your wall or under the carpet, which is why it's spreading.

DIY bleach cleaning is not recommended here. Bleach only removes surface discolouration on non-porous materials; it cannot penetrate drywall or carpet backing to kill the root structure. You might temporarily bleach it white, but the mold will return. More critically, improper cleaning can aerosolize spores, significantly worsening your indoor air quality and your child's allergy exposure.

For a recurring leak and visible growth, a professional assessment is strongly advised. The priority is stopping the AC leak at its source—often a clogged drain line or faulty installation—which a qualified HVAC technician must handle. For the mold itself, remediation involves containing the area, removing contaminated porous materials like drywall and carpet padding, and HEPA vacuuming followed by antimicrobial application. The cost for a small, contained area like this is typically on the lower end of the scale for professional work, but you should request an on-site assessment for an accurate scope and quote. Given the JVC humidity and the health priority, a pro can ensure it's resolved completely.