How to permanently remove AC mold in humid Dubai weather?« Back to Previous Page

The AC unit in our villa in Jumeirah 3 has been leaking a bit, and now we’re seeing these black spots in the corner of our master bedroom closet where it’s a bit damp. The humidity has been so high lately that even our clothes feel a little moist. What’s the best way to get rid of this mold for good and stop it from coming back, especially with our weather?
Posted by Maria Smit
Asked on March 27, 2026 1:53 pm
Based on your description from Jumeirah 3, you are dealing with a classic case of AC-induced mold growth, a very common issue in Dubai due to our high humidity levels and year-round reliance on air conditioning. The black spots are likely Cladosporium or Stachybotrys, which thrive in the damp, dark conditions created by a leaking AC unit.

Permanent removal requires a systematic approach. First, the moisture source must be eliminated. You must have a certified HVAC technician repair the AC leak immediately; without this, any cleaning is futile. For the mold itself, superficial cleaning with household bleach is insufficient and can exacerbate spore dispersal. The affected area requires professional-grade antimicrobial biocides approved by Dubai Municipality (such as those with EPA or equivalent certifications) to kill the mold at the root.

Crucially, the porous materials like drywall and possibly even the closet backing may need to be carefully removed and disposed of if the infiltration is deep, as mold roots (hyphae) can penetrate where surface cleaners cannot reach. After remediation, the area must be thoroughly dried using industrial-grade HEPA air scrubbers and dehumidifiers to restore normal humidity levels, a critical step in our climate.

To prevent recurrence, ensure your AC unit is serviced quarterly to prevent condensation buildup and maintain drain lines. Consider installing a smart hygrometer to monitor the closet's humidity. For a situation involving AC units and structural dampness, a professional inspection is strongly recommended to assess the full extent.

For a permanent solution that complies with local health and safety regulations, contact our certified specialists at Saniservice for an inspection and remediation plan. Call 800-MOLDS (800-66537) or email hello@saniservice.com.
Posted by Sani Admin
Answered on March 29, 2026 12:30 am