Black mold in humid bedroom, how to inspect in Dubai?« Back to Previous Page

We've lived here for 2 years and just noticed a bunch of black spots appearing in the corner of our master bedroom closet. It's on the wall that faces the outside of our villa in Jumeirah, and the room always feels more humid than the rest of the house. I'm worried it's from a hidden leak or maybe just the general humidity. What's the best way to get this properly inspected and treated here in Dubai without getting ripped off?
Posted by Piotr Richard
Asked on March 23, 2026 7:34 pm
Based on your description, this is a classic presentation of a mold issue in Dubai, likely driven by a combination of factors. The black spots in an exterior-facing closet wall of a villa in Jumeirah, coupled with elevated humidity, point to two probable causes: thermal bridging leading to condensation within the wall cavity, or a minor, hidden leak from external plumbing or rainwater penetration.

The UAE's high ambient humidity, especially during the summer months, combined with year-round air conditioning, creates significant temperature differentials. This can cause condensation to form on or within cooler surfaces, such as the backside of an exterior wall, providing the perfect environment for Cladosporium or Aspergillus mold growth. A professional inspection is absolutely critical here. DIY testing with swab kits is unreliable as it only confirms the presence of mold (which is ubiquitous) but does not identify the moisture source, which is the core problem.

A certified inspection by a company like Saniservice involves more than a visual assessment. We use specialized equipment including thermal imaging cameras to identify temperature anomalies indicative of hidden moisture and condensation, hygrometers to measure relative humidity at the surface, and moisture meters to quantify the moisture content within the building materials. This forensic approach is essential to accurately diagnose whether the issue is condensation or a leak, as the remediation protocol differs significantly.

For a definitive identification of the mold genus, air and surface sampling would be conducted, but the primary goal is always source elimination. Do not attempt to clean this yourself, as improper disturbance can aerosolize spores and contaminate other areas of your home.

For a thorough inspection and a compliant remediation plan, I recommend contacting our specialists. Call 800-MOLDS (800-66537) or email hello@saniservice.com to schedule a diagnostic assessment.
Posted by Sani Admin
Answered on March 25, 2026 10:25 am