AC Leak Causing Mold in Dubai Apartment: Fix?« Back to Previous Page

First, stop using the AC unit immediately to prevent further water damage and mold growth. The black spots are likely mold, a common issue here when condensation leaks onto drywall in our high humidity.

For cleaning the wall, wear an N95 mask and gloves. Wipe the affected area with a solution of diluted detergent or a dedicated mold cleaner. Do not attempt to clean it if the area is larger than a square foot or if the drywall is soft and crumbling, as the mold may have penetrated deeply.

The root cause is the AC leak, which must be fixed by a certified HVAC technician. In Dubai, all AC work should be done by a technician holding a valid DHA or Dubai Municipality card. They will identify if the issue is a blocked drain line, a cracked drain pan, or improper insulation and repair it permanently.

After the leak is fixed, the mold-affected wall must be professionally assessed. Porous materials like drywall often need to be cut out and replaced if the mold growth is extensive. For a proper assessment, a mold inspection that includes moisture mapping can determine the full extent of the water damage behind the wall. A company with its own microbiology lab can provide precise identification of the mold type, which is critical for determining the correct remediation protocol.

Simply cleaning the surface without addressing the hidden moisture and the AC fault will result in the mold returning quickly.