AC mold from leak: DIY clean or call professional?« Back to Previous Page

Based on the description of a long-term leak and the presence of a large patch of black and green mold spreading inside the wall cavity, this is absolutely a situation that requires professional assessment and remediation, not a DIY solution. Products from ACE or bleach are only suitable for surface-level contamination on non-porous materials and are completely ineffective for mold growing within porous building materials like drywall and insulation, which is your scenario.

The persistent leak from your AC unit has created the perfect conditions for mold growth: moisture, organic material (the wall), and the warm, humid Dubai climate. The mold you see is likely just the surface manifestation; the hidden growth within the wall is almost certainly more extensive. Disturbing it incorrectly during a DIY attempt will aerosolize the spores, significantly increasing the risk of respiratory issues and cross-contamination throughout your apartment.

In the UAE, professional remediation follows IICRC standards. For a case like this, the process involves: 1) containing the affected area with physical barriers and negative air pressure, 2) safely removing and disposing of all contaminated porous materials (drywall, insulation), 3) HEPA vacuuming and abrasive cleaning of the remaining structure, and 4) applying antimicrobial agents to prevent regrowth. Crucially, the root cause—the AC leak—must also be repaired by an HVAC technician.

For a bedroom-sized area, the cost for professional remediation in Dubai can typically range from AED 2,500 to AED 6,000+, depending on the extent of the damage and the required containment. This is an investment in your health and property. I strongly recommend you contact a certified professional for an inspection. Our team at Saniservice can provide a precise assessment and quote. Please call us at 800-MOLDS (800-66537) or email hello@saniservice.com to schedule an inspection.