Can I clean this recurring AC mold myself?« Back to Previous Page

The AC in my bedroom closet has been leaking a bit for a couple of weeks, and now I’m seeing black spots spreading on the wall behind my clothes. I wiped it with bleach, but it came back worse. Is this something I can tackle myself with a proper cleaner from ACE, or do I need to call in a professional mold inspection company?
Posted by Nisha Iyengar
Asked on April 13, 2026 8:50 pm
Recurring mold after a bleach clean indicates a deeper issue that surface cleaning cannot resolve. Bleach only removes surface discoloration on non-porous materials; it does not kill the root structure of the mold, and the water content can actually feed it, causing it to return more aggressively. The leak from your AC unit is providing the constant moisture source that mold needs to thrive, especially in our high-humidity climate.

For a situation involving an active AC leak and mold growth on wall materials, a professional inspection is strongly advised. The inspector will first identify and stop the moisture source—likely a clogged condensate drain line or faulty installation common with ducted units in closets. They will then assess the extent of the mold growth, which may have spread inside the wall cavity behind the visible spots.

DIY approaches are generally insufficient here because you need to address both the root cause and the concealed contamination. While a good antimicrobial cleaner from a hardware store can handle minor surface spots, it cannot remediate mold growing within porous drywall or insulation, which often requires controlled removal and replacement.

In Dubai, the constant AC operation creates perfect conditions for condensation and mold if systems aren't maintained. A proper inspection will include moisture mapping and, if necessary, air or surface sampling to identify the mold species, which determines the appropriate remediation protocol. This scientific approach ensures the problem is solved completely, not just temporarily hidden.
Posted by Sani Admin
Answered on April 14, 2026 1:42 am