AC leak causing wall mold; how to clean and who to fix?« Back to Previous Page

The water leak is creating ideal conditions for mold growth, which is common here due to our high humidity and constant AC use. The dark patches are likely a surface mold colony feeding on the moisture and dust.

For cleaning, a solution of white vinegar or a dedicated mold-cleaning product can be effective on non-porous surfaces. For a painted wall, wear an N95 mask and gloves. Gently scrub the visible area, but be aware the mold might have penetrated the paint or drywall if it's been wet for weeks. Painting over it without proper killing and drying will not solve the problem.

The root cause is the AC leak, which must be fixed to prevent immediate regrowth. You need a certified HVAC technician, not just a general handyman. In Dubai, technicians should be certified by recognized bodies like DEWA or have CERTIFIED REFRIGERATION HANDLING qualifications to handle refrigerants safely. They will identify if the issue is a clogged drain line, low refrigerant, or a faulty condensate pump.

Given the growth behind a curtain and concern about spreading, this warrants a professional assessment. A certified mold inspector can determine the extent of the growth, even inside the wall cavity, and recommend a remediation protocol. For a situation involving an AC unit and building materials, coordinating the HVAC repair with a mold assessment is the most reliable approach to ensure it is resolved completely.