Can I clean mold from AC leak myself with bleach?« Back to Previous Page

The AC in our villa in Jumeirah has been leaking a bit into the closet in the kids' room, and now I’m seeing black spots spreading on the back wall and on some shoes. It’s been getting worse over the last couple of weeks since the humidity spiked. Is this something I can clean myself with bleach from the supermarket, or do I need to call one of those professional mold remediation companies?
Posted by Amanda Torres
Asked on March 29, 2026 6:43 am
Based on the symptoms you've described—black spots spreading on the wall and belongings in a humid climate like Dubai—this is a classic case of active mold growth fueled by an AC condensate leak. While the instinct is to use a supermarket bleach solution, I must strongly advise against it for several technical reasons.

Bleach is predominantly water. On a porous surface like drywall or the material of shoes, the water content will soak in, providing more moisture for the hidden mold roots (hyphae) to thrive, causing the problem to rebound quickly. Furthermore, bleach's chlorine compounds rapidly evaporate, leaving behind salts that can feed future mold growth. It is also a severe respiratory irritant, and improperly cleaning it can aerosolize spores, spreading the contamination to other areas of the villa.

In the UAE's high humidity, this is more than a surface issue. The leak has likely compromised the wall's interior, and the mold growth could be extensive behind the surface. A professional inspection is critical. We use moisture meters and thermal imaging cameras to assess the full extent of the water damage and mold colonization within the wall cavity. DIY attempts often miss this hidden damage, leading to persistent health issues and structural problems.

For a proper and lasting remediation, the water source must be fixed by an HVAC technician first. Then, the affected porous materials (like the damaged drywall and likely the contaminated shoes) must be safely removed and disposed of under containment. The area then requires specialized antimicrobial treatment and HEPA vacuuming, not bleach.

Given this is in a child's room, where air quality is paramount, I highly recommend a professional assessment. Please contact our team at Saniservice for a comprehensive inspection. Call 800-MOLDS (800-66537) or email hello@saniservice.com. We can determine the severity and provide a definitive solution to ensure your family's environment is safe.
Posted by Sani Admin
Answered on March 31, 2026 2:42 pm