How to permanently stop mold after fixing an AC leak?« Back to Previous Page

The black specks you're seeing are a classic indicator of mold growth, likely Aspergillus or Cladosporium, which are extremely common in Dubai due to our high humidity levels. Simply wiping with bleach is a common mistake; it only removes surface discoloration and does not address the underlying fungal roots (hyphae) or the moisture problem. The AC leak has created a perfect micro-environment for mold: a constant moisture source and the organic material in the carpet backing and skirting board for it to feed on.

The only permanent solution requires a systematic approach. First, the AC leak must be repaired by a qualified HVAC technician to eliminate the primary moisture source. However, fixing the leak is only step one. The residual moisture trapped within the building materials must be addressed. The damp carpet, underlay, and affected section of the skirting board are almost certainly compromised. For a true long-term fix, these porous materials should be removed and replaced. The underlying concrete slab must then be professionally dried using industrial-grade air movers and dehumidifiers to achieve a moisture content below 15%, which is the threshold for preventing microbial growth.

After removal and drying, all remaining structural surfaces (walls, floor slab) must be treated with an EPA-approved antimicrobial coating to eliminate any residual spores and prevent regrowth. Finally, ensure your HVAC system is serviced regularly and that the room is kept well-ventilated. The persistent humidity in the UAE means that without this comprehensive remediation, the mold will inevitably return.

Given the hidden nature of moisture damage, a professional inspection is critical. We use thermal imaging cameras and moisture meters to identify the full extent of the water intrusion. For a proper assessment and a guaranteed remediation plan, I recommend calling our specialists at Saniservice on 800-MOLDS (800-66537) or emailing hello@saniservice.com.