How to prevent mold from returning after AC leak?« Back to Previous Page

That leak needs to be fully resolved first; otherwise, the mould will return. The priority is a permanent fix of the AC drain line or condensate pan by a qualified HVAC technician, not just a superficial cleaning of the visible mould on the wall.

For the wall itself, a proper remediation involves more than wiping it down. The affected drywall or plaster behind the wardrobe often needs to be cut out and replaced if the moisture has deeply penetrated. Simply cleaning the surface leaves mould roots (hyphae) inside the material, which will regrow. A professional service using HEPA-filtered vacuums and antimicrobial treatments addresses the source, not just the spots.

To prevent recurrence, focus on environmental control. After the repair and remediation, ensure the area is completely dry using dehumidifiers. In Jumeirah Park's humidity, improving air circulation behind the wardrobe is crucial; even a small gap can help. Consider applying a mould-resistant primer and paint to the new wall surface before putting the furniture back.

For a long-term solution, monitor the relative humidity in that room. It should be maintained below 60% to discourage mould growth. Since your AC runs year-round, scheduling regular professional maintenance to check drain lines and coil cleanliness is one of the most effective preventative measures. For a case like this with hidden damage, a post-remediation verification test from an independent lab can confirm the space is truly mould-free.