How to permanently remove recurring mold from AC wall?« Back to Previous Page

The root cause is likely inside your AC unit or its drainage system, not just the wall. In Dubai's climate, AC units run constantly, creating condensation that feeds mold if not properly drained. Bleach only removes surface stains and cannot penetrate porous materials like drywall to kill the root structure.

For a permanent fix, you must first stop the moisture source. This requires a certified technician to inspect the AC unit, clear the clogged drain line, and ensure the drip pan is functioning. Until that leak is fixed, the mold will always return.

After addressing the leak, the contaminated wall section needs proper remediation. Simply wiping it spreads spores. Affected drywall or insulation often requires cutting out and replacing if the mold has penetrated deeply. The area should then be treated with an EPA-approved antimicrobial solution, not bleach, to address hidden growth.

Finally, consider a professional assessment. Recurring mold, especially after a leak, can indicate a larger colony in the ductwork or inside the unit itself, which requires specialized equipment to address. A proper inspection from a company with microbiological testing can identify the species and the full extent of contamination, which is crucial for ensuring it doesn't return.