How to fix AC leak causing black mold in closet?« Back to Previous Page

Based on your description, this is a classic case of AC condensate drain line or drip pan failure, exacerbated by Dubai's high ambient humidity. The black speckles are almost certainly microbial growth, commonly referred to as "black mold," which thrives in the persistent dampness from the leak.

The most effective approach is a two-part process: remediation and root cause correction. First, do not attempt to clean this yourself. Disturbing the mold can aerosolize spores, spreading the contamination to other areas of your apartment. The affected drywall and carpet backing are likely compromised and may require professional removal and replacement to eliminate the colony entirely.

Second, the AC unit must be serviced by a certified HVAC technician to address the root cause. The primary culprits are typically a clogged condensate drain line or a cracked/overflowing drain pan. The technician will need to clear the blockage, ensure the drain line has a proper P-trap and slope, and verify the pump (if equipped) is operational. Simply wiping the visible mold will be a temporary fix; the moisture must be stopped permanently.

Given the climate, where AC runs year-round, this issue will recur without a professional fix. We strongly recommend a certified mold inspection to assess the full extent of the hidden growth within the wall cavity and to perform safe, compliant remediation. Saniservice specializes in this exact scenario, utilizing industrial-grade HEPA filtration and antimicrobial treatments in accordance with Dubai Municipality guidelines.

For a comprehensive inspection and permanent solution, please call our experts at 800-MOLDS (800-66537) or email hello@saniservice.com.