How to clean and prevent black mold from AC leak?« Back to Previous Page

The black spots you're describing are almost certainly mold growth, a common issue in Dubai's climate due to high humidity and year-round AC operation. The AC condensate leak provides the perfect moisture source for mold to thrive, especially in enclosed spaces like closets.

For immediate, small-scale cleaning, personal protective equipment is non-negotiable. Wear an N95 mask, gloves, and safety glasses. Isolate the area by closing the closet door and sealing the gap with tape to prevent spore dispersal. Mix a solution of one part distilled white vinegar to four parts water. Do not use bleach, as it only removes the surface color and can exacerbate the problem by adding moisture. Lightly mist the solution onto the affected area and scrub with a stiff-bristled brush. Afterwards, wipe the area clean with a damp cloth and then a dry one. Ensure the area is completely dry; a fan or dehumidifier is essential for this step.

However, this addresses only the surface contamination. The underlying cause is the AC leak and the moisture it has introduced into the building materials. In a villa, this moisture can wick into the drywall and subfloor, creating a hidden reservoir for mold. The AC unit and ductwork may also be contaminated, spreading spores throughout the house every time it cycles on.

For a permanent solution, the leak must be repaired by a certified HVAC technician, and the extent of the water damage and microbial growth must be professionally assessed. Surface cleaning is a temporary mitigation. In the UAE, remediation of systemic issues must comply with strict guidelines to ensure occupant health and prevent recurrence.

Given the conditions you've described—a leak, visible growth, and a persistent damp feeling—this warrants a professional inspection. I strongly recommend contacting our team at Saniservice for a comprehensive assessment. Call 800-MOLDS (800-66537) or email hello@saniservice.com to schedule a survey. Our certified inspectors will use moisture meters and thermal imaging to identify the full scope of the issue and provide a remediation protocol that meets Dubai Municipality standards.