AC mold: DIY with bleach or call professional?« Back to Previous Page

That black spot pattern indicates a persistent moisture issue, which is common with AC condensate leaks in Dubai's climate. The wall cavity behind the wardrobe is likely saturated, making a simple surface scrub insufficient.

Bleach is not recommended; it's mostly water that feeds the mold roots deep in porous materials like drywall and only bleaches the surface color. The underlying microbial structure remains and will return. For a small, surface-level spot (under one square foot), a thorough cleaning with a dedicated mold remover and fixing the AC leak may suffice.

However, the description of it spreading behind a fixed wardrobe suggests a larger, hidden problem. In such cases, professional assessment is advised. Reputable remediation here follows international guidelines like IICRC S520, which involves containing the area, removing contaminated porous materials like wet drywall, and using HEPA filtration to capture spores. The critical first step is to stop the source by having an HVAC technician repair the AC leak; otherwise, the mold will recur regardless of cleaning efforts.