AC leak causing mold: DIY clean or professional help?« Back to Previous Page

The black speckled patches and damp smell indicate active mould growth, almost certainly fueled by the AC condensate leak. In Dubai's high humidity, this moisture creates an ideal environment for mould, and your allergy symptoms are a common reaction to its spores.

Bleach is not recommended. It only removes surface discoloration on non-porous materials but does not kill the root structure within drywall or plaster. It can also release a high volume of irritants during cleaning. For a porous wall that has been damp for months, DIY cleaning is unlikely to address the hidden contamination inside and behind the surface.

Professional remediation is strongly advised here. The process involves containing the area to prevent spore spread, safely removing the affected building materials, HEPA vacuuming, and antimicrobial treatment. Crucially, the AC leak must be repaired first; otherwise, the mould will return immediately. A reputable company will provide before-and-after surface or air sample lab results to verify the space has been returned to a normal fungal ecology.

For a small, contained area like this, the scope of work is limited. The cost is primarily driven by the containment and safety protocols required, not just the square footage. You should request an on-site assessment from a provider that follows IICRC standards for an accurate scope and quotation.