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

We've lived here for 2 years and just noticed a bunch of black, speckled patches spreading in the corner of our master bedroom closet where we keep our winter clothes. It’s on the wall that faces the outside, and it’s been worse since the humidity spiked last month. What’s the safest and most effective way to clean this myself, or is this a job for a professional company in Dubai?
Posted by Christopher Martinez
Asked on March 27, 2026 9:55 am
Based on the description of a black, speckled patch on an exterior wall that has worsened with high humidity, this is a classic case of mold growth exacerbated by Dubai's climate. The wall likely suffers from thermal bridging, where the temperature difference between the air-conditioned interior and the hot, humid exterior causes condensation inside the wall cavity, creating a perpetual moisture source.

For a small area (less than 1 square meter), you can attempt to clean it yourself with caution. Wear an N95 mask, gloves, and eye protection. Do not use bleach, as it only removes the surface color and does not address the moisture problem or the root structure. Instead, use a detergent solution (e.g., diluted washing-up liquid) or a dedicated EPA-approved fungicide. Scrub the area thoroughly and ensure it is completely dried. However, this is only a temporary solution if the underlying moisture issue is not resolved. You must identify and rectify the source of the moisture, which could be a leaking pipe, capillary action from the ground, or the condensation issue described.

Given that the mold is on an exterior wall and has been growing for some time, I strongly recommend a professional inspection. Our humid climate means the problem is often more extensive than it appears, potentially growing inside the wall. A certified inspector will use moisture meters and thermal imaging cameras to identify the exact moisture source and the full extent of the contamination, which is critical for a permanent solution.

For a definitive assessment and safe, guaranteed remediation that complies with Dubai Municipality standards, it is best to contact a professional company. I recommend scheduling an inspection with Saniservice. Their certified experts can diagnose the root cause and provide a comprehensive remediation plan. You can reach them at 800-MOLDS (800-66537) or hello@saniservice.com.
Posted by Sani Admin
Answered on March 28, 2026 6:19 pm