AC leak causing black mold: DIY clean or call professional?« Back to Previous Page

Our AC in the Jumeirah Park villa has been leaking a bit, and now I’m seeing small black spots in the corner of our master bedroom closet. It’s been like this for a couple of weeks since the last humidity spike. Is this something I can clean myself with bleach or do I need to call a professional mold inspection company to check inside the AC unit?
Posted by Ming Xu
Asked on April 1, 2026 9:18 pm
Based on the symptoms you've described—a leaking AC unit followed by the appearance of black spots in a closet—this is a situation that warrants a professional inspection, especially in the Dubai climate.

The black spots are highly likely to be mold, a common issue here due to our high humidity levels and the year-round reliance on AC systems. The leak from your AC unit in Jumeirah Park is the primary culprit, creating a persistent source of moisture that mold spores, which are always present in the air, need to colonize. A critical point often overlooked is that the visible spots on the wall are just the tip of the iceberg. The main contamination is likely inside the AC unit itself, within the ducting and the evaporator coils, which you cannot properly assess or clean yourself.

Using bleach is strongly discouraged. It is a superficial solution that only removes the surface discoloration on non-porous materials. It does not kill the root structure of the mold on porous surfaces like drywall or wood, and its high water content can actually feed the mold, causing it to regrow more aggressively. More importantly, attempting to clean it can inadvertently aerosolize a high concentration of spores, potentially causing health issues and spreading the contamination throughout your villa.

UAE regulations and health guidelines emphasize the importance of proper remediation to ensure indoor air quality. A certified professional from a company like Saniservice will conduct a thorough inspection, including using borescopes to look inside the AC unit and wall cavities, and perform air quality testing to determine the spore count and species. This is crucial for designing an effective remediation protocol that addresses the entire problem, not just the visible part.

For a comprehensive inspection and to prevent further damage and potential health risks, I recommend you call our specialists at 800-MOLDS (800-66537) or email hello@saniservice.com. We can properly diagnose the extent of the issue and provide a definitive solution.
Posted by Sani Admin
Answered on April 3, 2026 5:51 am