How to permanently remove mold and check for a wall leak?« Back to Previous Page

The black spots in your closet are likely due to condensation forming on the cooler exterior wall, a common issue in Dubai's humid climate where AC use creates significant temperature differentials. A dehumidifier helps manage ambient moisture but won't stop condensation on a cold surface or fix an underlying leak.

First, identify the moisture source. For a suspected leak in the wall, contact a licensed building maintenance or facilities management company, not a general handyman. They use non-invasive moisture meters and thermal imaging cameras to pinpoint water intrusion without damaging the wall, which is crucial in multi-unit buildings.

To remove the mold safely, wear an N95 mask and gloves. For surface mold on non-porous surfaces, a solution of white vinegar or a dedicated mold remover can be effective. However, if the mold has penetrated the drywall or plaster, the affected section will likely need to be cut out and replaced by a professional remediation company to prevent regrowth. Simply cleaning it will not be a permanent solution.

The permanent fix involves two steps: eliminating the moisture source (whether a leak or condensation) and then replacing the contaminated material. After remediation, consider improving insulation on that exterior wall or using a moisture-resistant paint to help prevent future condensation. For extensive growth or if occupants experience health symptoms, a professional inspection with lab-based air and surface sampling is recommended to identify the mold species and verify the cleanup was successful.