How to safely clean black mold in Dubai?« Back to Previous Page

We've lived here for 2 years and just noticed a patch of black mold in the corner of our master bedroom closet, behind the clothes. It’s on the wall that faces the outside, and I’m worried the recent humidity made it worse. What’s the best way to clean this safely, and should I call my building’s maintenance or a professional company here in Dubai?
Posted by Xiao Li
Asked on April 24, 2026 2:20 pm
Black mold in a bedroom closet on an exterior wall is a common issue in Dubai, often caused by a combination of high outdoor humidity and cold spots created by air conditioning, leading to condensation inside the wall. The first step is to identify and address the moisture source; this is often a building envelope issue, so notifying your building's maintenance is essential. They are responsible for investigating and repairing any leaks or insulation gaps in the external wall.

For a small patch (under one square foot), you can clean it yourself with proper precautions. Wear an N95 mask, gloves, and eye protection. Move clothing away and isolate the area. Scrub the mold off non-porous surfaces like painted drywall with a mixture of detergent and water. Avoid using bleach, as it doesn't kill mold spores and can worsen indoor air quality. After cleaning, ensure the area is thoroughly dried.

However, if the mold has penetrated porous materials like drywall or the underlying wood, or if the patch is larger, professional assessment is strongly recommended. Improper cleaning can aerosolize harmful spores throughout your home. In Dubai's climate, simply cleaning the surface without resolving the hidden condensation problem guarantees it will return.

A professional inspection, often involving moisture meters and thermal imaging, can pinpoint the exact cause of the condensation within the wall cavity. Remediation may require removing a section of the wall to properly dry the structure and apply antimicrobial treatments. For verifiable results, choose a provider that uses independent lab analysis to confirm the mold species and that the remediation was successful.
Posted by Sani Admin
Answered on April 25, 2026 2:20 am