How to stop AC leak and prevent mold for good?« Back to Previous Page

The issue you're describing is a classic consequence of Dubai's high humidity and year-round AC operation. The constant condensation, if not properly managed by the AC's drainage system, creates a persistent moisture source that bleach cannot remediate. Bleach only removes surface discoloration; it does not kill the mold roots (hyphae) penetrating the porous drywall, nor does it address the moisture source, guaranteeing regrowth.

The most effective strategy is a two-pronged approach: source correction and professional remediation. First, the AC leak must be stopped. This typically involves a HVAC technician servicing the unit to clear clogged condensate drain lines, ensuring the drip pan is properly sloped, and checking for a malfunctioning condensate pump if present. This is the critical first step to eliminating the moisture.

However, the existing mold growth within the wall cavity is a separate issue. The black spots indicate active colonization. In the UAE, proper mold remediation, as per industry standards like the IICRC S520, requires containment, removal of contaminated porous materials (the affected drywall and insulation), HEPA vacuuming, and antimicrobial treatment of the cavity. Attempting this yourself risks cross-contamination and inadequate removal.

For a permanent solution, I strongly recommend a professional inspection. Our certified team at Saniservice can perform a comprehensive assessment to identify the exact extent of the hidden mold and the precise cause of the AC leak. We then execute a full remediation protocol to ensure the problem is resolved for good. Please call us at 800-MOLDS (800-66537) or email hello@saniservice.com to schedule an inspection.