How to clean and stop AC wall mold in Dubai?« Back to Previous Page

As a certified mold remediation specialist in Dubai, the issue you're describing is extremely common due to our climate. The combination of high humidity, especially during the summer and recent foggy periods, and constant AC operation creates significant condensation, which is the primary cause of the black mold growth you've found.

The first and most critical step is to address the source of moisture. The AC leak must be repaired by a qualified HVAC technician to prevent continuous water intrusion. Simply cleaning the mold without fixing the leak will result in immediate regrowth.

For cleaning small, isolated areas (less than 1 square meter), you can use a solution of diluted white vinegar or a specialized EPA-approved fungicide. Wear an N95 mask, gloves, and safety glasses. Scrub the affected wall surface thoroughly. However, this is only a surface-level solution. Mold often penetrates deep into porous materials like drywall and plaster, which may require cutting out and replacing the contaminated section.

To prevent recurrence, ensure your AC unit is serviced regularly to maintain proper drainage and prevent condensation buildup. Consider using a dehumidifier in conjunction with your AC, particularly in bedrooms, to keep indoor relative humidity below 60%. Improve air circulation in the room by occasionally opening windows when the external humidity is lower and regularly moving furniture away from walls.

For a persistent problem like this, where the mold is behind a curtain and likely hidden within the wall cavity, I strongly recommend a professional inspection. Our certified teams at Saniservice use thermal imaging cameras to identify hidden moisture and mold growth that is not visible to the naked eye. We follow strict Dubai Municipality guidelines for assessment and remediation to ensure the problem is solved permanently and your indoor air quality is restored. For a proper assessment, please call us at 800-MOLDS or email hello@saniservice.com.