How to permanently fix mold from AC leak in Dubai?« Back to Previous Page

The AC in my bedroom closet seems to be leaking a little, and I’ve just found a patch of black mold on the back wall behind my clothes. We’re in a villa in Jumeirah and the humidity has been brutal this summer. What’s the best permanent fix to stop this from coming back after I clean it?
Posted by Jennifer Lewis
Asked on March 29, 2026 7:20 am
The leak is the primary issue that must be fixed first. In Dubai's high humidity, a small AC condensate drain leak provides constant moisture, making surface cleaning alone a temporary fix. You need a two-part solution: stop the water source, then remediate the mold.

For the leak, a certified HVAC technician should inspect the drain pan, condensate drain line, and insulation for blockages or damage. The constant cycling of AC units here makes them prone to condensate issues. Once the leak is permanently repaired, the wall must be properly dried. For a villa in Jumeirah, this often requires industrial dehumidifiers, not just air drying, to remove moisture trapped within the wall cavity.

The black mold on the wall needs remediation. For a small patch, you can clean it with a detergent solution, but porous materials like drywall may need cutting out and replacing if the growth is extensive. Simply painting over it will not work. After remediation, ensure the area is completely dry before rebuilding.

To prevent recurrence, maintain indoor humidity below 60% using a dehumidifier, especially during the humid summer months. Improve air circulation in the closet; avoid overpacking it with clothes. Consider an anti-microbial coating on the repaired wall as a preventative measure. For a confirmed and recurring mold issue, a professional inspection with lab testing can identify the species and ensure the remediation was successful, which is a standard practice for science-driven companies in the region.
Posted by Sani Admin
Answered on April 1, 2026 6:58 am