AC mold from leak: permanent removal and prevention tips?« Back to Previous Page

That black speckling is almost certainly mold growth caused by the AC condensate leak. The constant moisture, combined with Dubai's high humidity and dust, creates an ideal breeding ground. The leak must be fixed first—this is the primary source of moisture.

For a proper cleanup, the affected section of drywall must be inspected. Porous materials like gypsum board often need to be cut out and replaced if the mold growth is extensive or has penetrated the surface. Simply wiping it will not address the root problem inside the wall cavity. The area should then be professionally cleaned with appropriate antimicrobial agents, not just bleach, which only removes surface discoloration.

Long-term prevention requires controlling humidity. Ensure your AC unit is serviced and draining correctly; a blocked condensate drain line is a common cause of leaks. Maintain your AC temperature consistently, as frequent on/off cycling can cause more condensation. For bedrooms, using a standalone dehumidifier can help maintain humidity levels below 60%, especially during the more humid winter months.

For a case like this, a professional inspection is highly recommended to assess the full extent behind the wardrobe and inside the wall. They can perform a moisture mapping assessment and, if needed, air or surface sampling to identify the mold type. A reputable company will provide a clear protocol for remediation and verification testing afterwards to ensure it's been resolved properly.