How to permanently remove mold from under AC leak?« Back to Previous Page

Stop using the AC immediately and address the leak at its source. Mold under the carpet from an AC drip line is a serious moisture issue common in Dubai's climate, where high humidity prevents damp materials from drying naturally.

The most effective method is a multi-step process. First, a professional must fix the AC leak permanently. Then, the affected carpet and underpad must be removed and properly discarded, as they cannot be adequately cleaned. For the concrete slab, scrubbing with a detergent solution is not enough; the mold roots (hyphae) penetrate the porous surface. Applying a dedicated antimicrobial treatment designed for masonry is necessary to kill the growth at its root.

Crucially, the area must be completely dried using industrial-grade dehumidifiers and air movers, which is nearly impossible to achieve with open windows due to the constant high outdoor humidity. Simply killing the mold without achieving thorough drying will result in regrowth quickly, often within weeks.

Given the extent you've described, a professional inspection is strongly advised. They can assess if the mold has spread into wall cavities and perform post-remediation verification testing to confirm the space is truly mold-free and the spore count has returned to normal levels. This is the only way to ensure it does not come back.