Should I remove this black wall mold myself or call a pro?« Back to Previous Page

The AC in my apartment seems to be leaking into the wall behind it in the living room, and now there's a big black splotch spreading on the wallpaper. It feels damp and the room has this weird, earthy smell that won't go away even after I wipe it down. I'm worried it's harmful, but I'm not sure if this is something I can tackle with bleach from Carrefour or if I need to call a professional company to deal with it. Should I handle this black mold cleanup myself or is this a job for the pros?
Posted by Timothy Martin
Asked on April 18, 2026 10:55 am
Do not attempt to clean this yourself. The combination of a damp wall, a persistent earthy smell, and visible spreading black discoloration indicates an active, established mold colony that bleach from a supermarket cannot properly address.

In Dubai's climate, this is likely a condensation issue from your AC unit, creating a constant moisture source inside your wall cavity. Surface cleaning will remove the visible stain but not the root cause or the hidden growth. Disturbing it improperly can aerosolize spores, spreading the contamination to other areas of your apartment.

For a case like this, a professional inspection is necessary. They will use moisture meters to find the water source and likely recommend a lab test to identify the mold type, as "black mold" can be several species with varying implications. Remediation involves fixing the AC leak, isolating the area, removing contaminated porous materials like wallpaper and drywall, and using HEPA filtration to clean the air. This is a job for pros with the right containment and safety equipment.
Posted by Sani Admin
Answered on April 21, 2026 2:44 am