How do I permanently stop mold from my leaking AC?« Back to Previous Page

The recurring leak is the root cause, and until that's permanently fixed, the mold will return. In Dubai's climate, ACs work year-round, creating constant condensation that feeds mold if drainage is compromised.

For the existing mold, simply wiping visible spots isn't enough. On a non-porous surface like a painted wall, a solution of diluted detergent can remove the staining. However, if the mold has penetrated the drywall or plaster, the affected section likely needs to be cut out and replaced, as spores will remain deep within the material.

The critical step is a permanent repair of the AC leak. The previous fixes by maintenance crews may have only addressed a clogged drain pan tube, which is a temporary solution. The entire drainage system, including the drain pan, condensate line, and pump (if present), needs a professional inspection to identify the underlying failure point, such as a crack, misalignment, or microbial blockage.

To prevent recurrence after the repair, ensure the closet has adequate air circulation. Avoid packing clothes tightly against the AC unit, as stagnant, humid air is a breeding ground. Using a small dehumidifier or moisture absorber in the enclosed space can also help maintain low humidity levels.

For a persistent issue like this, a professional inspection is recommended to assess the full extent of the moisture damage behind the wall and identify the specific mold type. This is particularly important if anyone in the home has respiratory sensitivities. A proper assessment from a company with microbiological testing can confirm the species and ensure the remediation plan is effective for your specific situation.