Black spots in closet: urgent professional needed or DIY?« Back to Previous Page

Based on the description of black spots at the wall-ceiling junction in your bedroom closet, this is a situation I would recommend having professionally inspected. The location is a classic indicator of a condensation issue, which is extremely common in Dubai due to the high ambient humidity interacting with year-round air conditioning. The cold wall from the AC creates a thermal bridge where moisture in the warm air condenses, providing the perfect environment for mold growth.

While small, superficial mildew can sometimes be cleaned with a detergent solution, what you're describing likely requires more attention. Wiping it away, as your husband suggests, will only remove the visible spores (the "fruit" of the mold) but not the root network (mycelium) growing within the wall. Without identifying and rectifying the source of moisture—which could be condensation, a minor leak, or even capillary action from the slab—the growth will almost certainly return and spread, potentially compromising the structural integrity of the drywall and affecting your indoor air quality.

For a proper resolution, a certified inspector should conduct moisture mapping and thermal imaging to pinpoint the exact moisture source. Air and surface sampling can then identify the species of mold to determine the appropriate remediation protocol, in line with UAE health and safety guidelines.

Given the climate conditions here, this is a common but urgent matter. I advise against a DIY approach. For a definitive assessment and quote, please call our experts at 800-MOLDS (800-66537) or email hello@saniservice.com. Saniservice can provide a comprehensive inspection and remediation plan to ensure the problem is resolved correctly and does not recur.