What's the fastest DIY fix for AC leak mold?« Back to Previous Page

The AC in my apartment in Jumeirah Village Circle has been leaking a little for a while, but I just pulled back the corner of the bedroom carpet and found a huge patch of black, fuzzy mold on the concrete underneath. It's been so humid lately that I'm worried it's spreading. What's the absolute fastest way to deal with this myself before I have to call a professional?
Posted by Betty Allen
Asked on April 10, 2026 8:40 am
The fastest way to contain this is to stop the moisture source immediately. Turn off the AC unit to prevent further leaking. In Dubai's high humidity, mold can colonize rapidly on damp concrete and carpet backing.

For a small patch (under one square meter), you can carefully spray the visible growth with a 50/50 white vinegar and water solution to neutralize it, then physically remove the contaminated carpet section. Wear an N95 mask, gloves, and eye protection to avoid inhaling spores. However, the critical concern is that the mold you see is likely just the surface growth; the moisture has almost certainly wicked into the concrete slab below, creating a reservoir you cannot simply wipe away. DIY solutions are a temporary containment measure.

Given the extent you've described and the persistent humidity, a professional inspection is strongly advised. They use moisture meters to detect hidden saturation in walls and subfloors and can determine if the concrete slab requires specialized drying or antimicrobial treatment. For rental properties in Dubai, this level of water damage typically requires landlord notification and remediation to meet community health standards.
Posted by Sani Admin
Answered on April 11, 2026 11:05 pm