Black mold in closet: who to call in Dubai?« Back to Previous Page

We've lived here for 2 years and just noticed a bunch of black spots forming 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 worse since the humidity spiked last week. My throat has been feeling scratchy in the mornings and I'm starting to worry. What's the best way to deal with this safely and who should I call for a proper inspection in Dubai?
Posted by Raj Tiwari
Asked on March 24, 2026 4:16 am
The black spots you've described in your closet are highly indicative of a mold colony, likely Stachybotrys chartarum (black mold) or Aspergillus niger, given the location and appearance. The wall facing the exterior is a classic trouble spot in Dubai due to thermal bridging. The temperature difference between the air-conditioned interior and the hot, humid exterior causes condensation to form inside the wall cavity, providing the perfect moisture source for mold growth on organic materials like drywall and dust. The recent humidity spike has exacerbated this, accelerating colonization.

Your scratchy throat is a common physiological response to inhaling mold spores and microbial volatile organic compounds (mVOCs) released by an active colony, especially in an enclosed space like a closet. This is a clear indicator that the issue is affecting your indoor air quality and health.

Do not attempt to clean this yourself. Disturbing the colony without proper containment will aerosolize a high concentration of spores throughout your bedroom, potentially worsening your symptoms and contaminating other areas. Over-the-counter sprays are ineffective against established growth and address only surface discoloration, not the root moisture problem.

This situation requires professional assessment. In Dubai, reputable mold inspection companies, like Saniservice, use a systematic approach. A certified inspector will conduct a visual assessment using borescopes to view inside the wall cavity, measure moisture content with penetrating probes, and perform air quality sampling to identify the spore types and concentrations. This data is crucial for developing a remediation protocol that complies with best practices.

The remediation process will involve isolating the area, removing contaminated porous materials (drywall, insulation), HEPA vacuuming, and treating the area with EPA-approved antimicrobials. Finally, the root cause—the condensation—must be addressed, often by improving insulation or ventilation.

For a proper inspection and remediation plan, it is imperative you call a professional. You can contact Saniservice at 800-MOLDS (800-66537) or email hello@saniservice.com for a comprehensive assessment.
Posted by Sani Admin
Answered on March 26, 2026 3:08 pm