How to clean mold from AC drip on wall?« Back to Previous Page

The black spots are mold, caused by the AC condensation drip creating a constant damp environment on your wall. In Dubai's high humidity, this is a common issue, especially when an AC unit isn't draining properly.

For cleaning the wall, first ensure the area is dry. Wear a mask and gloves. For a small area on a painted wall, a solution of white vinegar or a diluted bleach mixture (1 part bleach to 4 parts water) can be effective. Scrub gently with a soft brush, then wipe clean and allow the area to dry thoroughly. Be aware this may lighten the paint, so spot-test first. However, cleaning is only a temporary fix if the moisture source remains.

The primary issue is the AC drip. This is not a simple cleaning job; you need a certified HVAC technician to diagnose and repair the clogged condensate drain line or faulty drip pan. In many Al Barsha buildings, this is handled by the building's maintenance team or a provider they approve. Contact your building management first, as they often have a preferred contractor.

Until the leak is fixed, the mold will return. If the staining is extensive or you notice a musty smell, a professional mold inspection is recommended to assess if growth has penetrated behind the wall. The technician can perform surface and air sampling, with analysis done by an accredited microbiology lab, to identify the species and guide the proper remediation protocol.