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

The AC unit in my JBR apartment has been leaking a little bit of water onto the carpet in the bedroom for a couple of weeks. I’ve been wiping it up, but now I’m getting a weird smell and I’m worried black mold is starting to grow underneath. What’s the best way to treat this area myself to kill any mold and prevent it from coming back for good?
Posted by Ahmed Bin Zayed
Asked on March 30, 2026 8:52 am
Based on the conditions you've described, you are dealing with a classic scenario in Dubai, where persistent AC condensate leaks create an ideal breeding ground for mold due to our high ambient humidity. The musty smell is a strong indicator of microbial growth, likely including mold, which thrives on the constant moisture and the organic material in your carpet and underlying padding.

Your immediate priority is to stop the moisture source. This is not a DIY fix; you must have a certified HVAC technician repair the AC unit's drain line or pan to prevent further leaking. Simply wiping the surface is insufficient, as moisture will have wicked deep into the carpet and subfloor.

For the affected area, a surface-level DIY treatment is a temporary measure and will not address the root problem. I strongly advise against attempting to treat this yourself with bleach or consumer-grade products, as these can release harmful spores into the air and are ineffective at penetrating porous materials. The carpet pad underneath is almost certainly compromised and acts as a reservoir for moisture and mold, which cannot be properly treated in place.

Given the duration of the leak and the presence of an odor, a professional inspection is critical. Our certified inspectors use moisture meters, thermal imaging, and air/o-surface sampling to determine the full extent of the contamination, which is often far greater than what is visible. UAE regulations, particularly from Dubai Municipality, emphasize the importance of proper remediation to ensure indoor air quality and occupant health.

For a permanent solution, the affected carpet and padding will likely need to be removed, the subfloor professionally treated and dried using industrial-grade HEPA-filtered air scrubbers and dehumidifiers, and then reinstalled. To prevent recurrence, ensure your AC unit is serviced quarterly to prevent clogged drains, a common issue in our dusty climate.

For a definitive assessment and a safe, guaranteed remediation plan, please contact our specialists at Saniservice. Call 800-MOLDS (800-66537) or email hello@saniservice.com for an immediate consultation.
Posted by Sani Admin
Answered on March 31, 2026 10:56 am