How do I permanently fix AC leak and black mold?« Back to Previous Page

The recurring black spots you're seeing are a classic case of mold growth, a very common issue in Dubai due to our high humidity and year-round reliance on AC systems. The fact that the mold returned after cleaning with bleach is a critical indicator. Bleach only removes surface discoloration; it does not kill the mold's root structure (hyphae) penetrating the wall, and the moisture from the AC leak provides the perfect environment for it to regrow even stronger.

The permanent solution is a two-step process: remediation of the mold and rectification of the moisture source.

First, the mold must be professionally remediated. For porous materials like drywall, this often involves controlled removal of the affected section. DIY methods like bleach are insufficient and can aerosolize spores, spreading the contamination. Our certified technicians use EPA-approved biocides to kill the mold at its root, followed by sanding, HEPA vacuuming, and application of an antimicrobial sealant to prevent future growth. This process follows the IICRC S520 standard for professional mold remediation.

Second, and most importantly, the AC leak must be fixed. The constant moisture is the root cause. The most likely culprits are a blocked condensate drain line or a malfunctioning drain pan. This requires a specialist AC technician to clear the line, check the pump (if present), and ensure the system is draining properly as per Dubai's strict HVAC maintenance regulations.

Given the spread you've described, this is not a minor issue. I strongly recommend a professional inspection to assess the full extent of the mold growth behind the wardrobe and to identify the precise cause of the AC leak. For a permanent fix, call our experts at 800-MOLDS (800-66537) or email hello@saniservice.com. Saniservice can handle both the mold remediation and coordinate with trusted HVAC partners to solve the problem comprehensively.