Black mold in Mirdif closet: DIY or call a pro?« Back to Previous Page

That black speckling is a common issue in Mirdif villas, especially on exterior walls that experience thermal bridging from the intense heat. The recent high humidity creates the perfect environment for mold growth when that cold wall surface condenses moisture.

For a small, surface-level patch (less than one square foot), a DIY approach can be effective. Wear an N95 mask and gloves. Scrub the area with a mixture of detergent and water, then follow with a disinfectant like white vinegar or a diluted bleach solution. The key is to dry the area completely within 24-48 hours using a fan or dehumidifier to prevent immediate regrowth.

However, if the mold covers a larger area, has a musty odour, or has penetrated the drywall or plaster, DIY cleaning will likely only address the surface. The hidden moisture source and root system within the building material will cause it to return. In Dubai’s climate, the underlying cause is often interstitial condensation within the wall or a small, hidden leak.

Professional assessment is recommended to identify the true moisture source—be it a leak, capillary action from the slab, or condensation—and to determine the extent. A proper remediation will involve containment, HEPA filtration, and removal of affected porous materials to prevent spores from spreading to other parts of the home. A company with its own microbiology lab can provide before-and-after testing to verify the space has been returned to a healthy baseline.