AC Leak Causing Black Mold in Dubai Apartment: What to Do?« Back to Previous Page

First, address the AC leak immediately. A constant leak creates the persistent moisture that mold needs to grow. In Dubai's high humidity, this is a chronic issue. The black, powdery substance is very likely Stachybotrys or Cladosporium, molds that thrive on the cellulose in wet drywall. Wipe the visible spots with a microfiber cloth dampened with a diluted detergent solution, but understand this is only a surface fix.

The root cause is the leaking AC. This is a job for a certified HVAC technician, not a general handyman. They need to diagnose and repair the issue, which is often a clogged condensate drain line or a misaligned drain pan—common problems in our climate due to year-round AC use and dust. The Dubai Municipality has regulations for proper AC installation and maintenance to prevent such health hazards.

For the wall, cleaning the surface mold is temporary. The moisture has likely penetrated the gypsum board. If the staining is widespread or the wall feels soft, the drywall itself may be compromised and require cutting out and replacement by a qualified remediation professional to prevent the mold from regrowing inside the cavity.

Given the description of it spreading, a professional inspection is strongly recommended to assess the full extent. They can use moisture meters to find hidden dampness and recommend a full remediation protocol if needed. The goal is to fix the leak, properly dry the structure, and only then remove the contaminated material to prevent spores from dispersing.