Can I clean this AC wall mold or call a professional?« Back to Previous Page

The AC in our villa in Jumeirah seems to be leaking into the wall behind it, and we've started seeing these small black spots spreading on the skirting board. It's been getting worse since the humidity really kicked in a couple of weeks ago. Is this something I can tackle myself with bleach and a scrub, or is it time to call in a professional mold inspection company?
Posted by Wei Zhang
Asked on March 23, 2026 9:24 pm
Based on the symptoms you've described—a leaking AC unit and spreading black spots on the skirting board in Jumeirah—this is a situation that warrants a professional mold inspection. The combination of water intrusion from the leak and Dubai's high ambient humidity creates an ideal environment for prolific mold growth, most likely Stachybotrys chartarum (black mold) or Aspergillus.

Attempting to clean this yourself with bleach is not recommended. Bleach is ineffective on porous materials like wood and drywall; it only bleaches the surface mold while leaving the root structure intact, allowing it to regrow quickly. More critically, disturbing the mold through scrubbing can aerosolize harmful spores, significantly degrading your indoor air quality and potentially causing health issues.

The primary step is not cleaning but identifying and rectifying the moisture source. In Dubai, this is often due to AC condensate drain line blockages, improper insulation leading to condensation, or a faulty drain pan. A certified mold inspector will use tools like thermal imaging cameras and moisture meters to pinpoint the exact extent of the water damage hidden within the wall cavity, which is likely far greater than the visible surface spots.

Given the potential for structural damage and health risks, a professional assessment is crucial. We strongly recommend contacting our team at Saniservice for a comprehensive inspection. Our experts are certified and will provide a detailed protocol for safe remediation and moisture control, ensuring the problem is resolved at its source.

For immediate assistance, please call us at 800-MOLDS (800-66537) or email hello@saniservice.com.
Posted by Sani Admin
Answered on March 26, 2026 4:49 am