Black mold in AC vent: professional needed and cost?« Back to Previous Page

Yes, you should call a professional. The recurring growth after cleaning indicates a deeper contamination within the AC system itself, which you cannot reach with surface wiping. In Dubai's high humidity, AC units are prone to condensation that fosters mold inside the ductwork and evaporator coil, spreading spores throughout your apartment.

For a one-bedroom, a proper inspection involves a visual assessment of accessible ducts and the indoor unit, often combined with air or surface sampling to identify the mold type and concentration. Treatment requires specialized equipment to access and clean the entire system, including the blower fan and evaporator coil, followed by applying an EPA-approved antimicrobial coating to prevent regrowth. The final cost is highly variable and depends entirely on the extent of the contamination, the type of AC system (central split vs. ducted), and whether antimicrobial treatments are needed. You will need to request an on-site assessment from a certified provider to get an accurate quote; any flat rate given without diagnosis is not credible. Look for companies that provide documented before-and-after evidence of remediation, not just a visual clean.