How to clean and prevent mold from AC leak?« Back to Previous Page

That's a classic and very serious issue we see all the time here in Dubai, especially with our high humidity. First, stop. Do not just wipe it down with bleach. The black discoloration is a major red flag for Stachybotrys or other toxigenic molds, and improper cleaning will aerosolize the spores, making the contamination worse.

Since the mold is already established on porous materials like drywall and your shoes, a surface clean isn't enough. The hyphae (root structure) penetrate deep into the material. For the wall, the affected drywall and insulation likely need to be safely removed and bagged by a professional team with HEPA filtration and containment. Your shoes are probably a total loss if the mold is on them; it's nearly impossible to fully remediate porous belongings.

The fix was step one, but the lingering moisture in the wall cavity and closet floor is the real problem. You need a certified professional to use a moisture meter to confirm the structural materials are dry below 16% moisture content. Then, a full antimicrobial treatment and sealing of the area is critical before any rebuild.

To prevent it from coming back, ensure the AC drain line is flushed quarterly—this is the most common cause of leaks. Also, consider having a UV-C light system installed inside the AC unit's evaporator coil compartment to inhibit microbial growth. For a closet space, a small disposable desiccant bag can help control ambient humidity.

Given the extent you've described, this requires professional assessment and remediation to ensure it's done to UAE health and safety standards. We can send a certified inspector to assess the damage and provide a proper protocol.

Call us at 800-MOLDS or email hello@saniservice.com for a proper inspection. Don't risk your health on a DIY fix with this one.