Can I fix dangerous AC mold myself or call pro?« Back to Previous Page

Based on your description, you absolutely need to call a professional. The combination of a persistent leak, high humidity, and a large recurring patch of black and green mould indicates a serious infestation that has likely penetrated the drywall and insulation behind it.

Surface cleaning with store-bought products is ineffective and can be hazardous. Disturbing the mould releases a high concentration of spores into your indoor air. The strong, persistent smell confirms that the mould is actively growing and producing microbial volatile organic compounds (mVOCs), which are responsible for the musty odour and can cause health issues.

In Dubai's climate, this is a common but urgent issue. The high humidity provides a constant moisture source, and the year-round AC use creates the perfect cold surface for condensation, feeding the mould. The remediation process requires isolating the area, safely removing contaminated porous materials like drywall, and using industrial-grade HEPA filtration to clean the air. A professional will also identify and fix the root cause—the AC leak—to prevent immediate recurrence.

For a small bedroom, the cost is driven by the extent of structural damage. You are not just paying for cleaning, but for the safe demolition, disposal, and reconstruction of the affected wall section. Always request a detailed assessment and a scope of work that includes both remediation and the repair of the water source.