How to clean mold and fix a leaking AC?« Back to Previous Page

Based on your description, the black patches are a direct result of the AC condensate leak combined with Dubai's high ambient humidity, creating a perfect breeding ground for mold. This is a very common issue here.

For a small, localized patch (less than 1 square meter), you can attempt to clean it yourself. However, strict personal protection is non-negotiable. Wear an N95 mask, gloves, and safety glasses. Isolate the area and never dry-brush the mold. For a porous surface like drywall, use a damp cloth with a solution of detergent and warm water. After cleaning, the area must be dried completely within 24-48 hours using dehumidifiers and increased ventilation to prevent immediate regrowth. Be aware that if the moisture has penetrated the wall cavity, the mold growth inside may be more extensive than what is visible on the surface.

The root cause is the leaking AC unit. This must be addressed by a certified HVAC technician to stop the moisture intrusion. The leak could be due to a clogged condensate drain line, a damaged drain pan, or incorrect unit pressure – all common issues in our climate where AC systems run year-round.

For a situation involving a leak and structural materials, a professional inspection is strongly advised. We at Saniservice offer comprehensive mold inspections that include moisture mapping and air quality testing to determine the full extent of the contamination, which is often hidden. Our certified remediation teams follow IICRC standards to safely remove the mold and treat the area with EPA-approved antimicrobial solutions, ensuring the problem is resolved at its source.

To properly diagnose the AC leak and the full scope of the mold growth, we recommend you call our experts at 800-MOLDS (800-66537) or email hello@saniservice.com for a consultation.