How to safely clean mold in closet and check walls?« Back to Previous Page

We've lived here for 2 years and just noticed a patch of black, fuzzy mold in the corner of our master bedroom closet where we store our winter clothes. It's on the wall that faces the outside, and it's been so humid lately. I'm really worried it's spread to the clothes and shoes in there. What's the safest and most effective way to clean this and who should I call to check for moisture in the walls?
Posted by Ashok Mishra
Asked on May 5, 2026 7:00 am
That black fuzzy patch is a common issue in Dubai's climate, especially on exterior walls where condensation can form. The humidity creates a perfect environment for mold growth.

For a small patch under 10 square feet, you can clean it yourself safely. Wear an N95 mask, gloves, and eye protection. Scrub the area with a stiff brush and a solution of detergent and water. Avoid using bleach, as it doesn't prevent regrowth and can damage porous surfaces. After cleaning, dry the area thoroughly with a fan. For your winter clothes and shoes, inspect them carefully. Wash any affected fabrics with hot water if the material allows. For shoes and items that can't be washed, sunlight is a powerful disinfectant; leave them in direct sun for several hours.

However, cleaning the surface is only a temporary fix if the moisture source remains. The mold on an exterior wall strongly suggests a hidden issue, like a small plumbing leak or, more commonly, condensation within the wall cavity due to the temperature differential between the air-conditioned interior and the hot, humid exterior.

You should call a professional mold inspector to assess the wall for moisture. They use tools like moisture meters and thermal imaging cameras to find the exact source of the dampness without unnecessary demolition. In serious cases where the mold is widespread or has penetrated deep into porous materials like drywall, a professional remediation company should handle the removal to prevent cross-contamination. Look for providers who can show verifiable before-and-after testing data from an accredited lab to confirm the space is truly resolved.
Posted by Sani Admin
Answered on May 5, 2026 2:29 pm