Is black mold behind our wall making us sick?« Back to Previous Page

Based on your description of a large patch of black mold that has developed over months due to an AC leak, alongside the health symptoms you're both experiencing, I strongly advise against a DIY approach. This is a serious situation that requires professional assessment and remediation.

The black discoloration strongly suggests a significant fungal colony, and your persistent headaches and dry cough are classic symptoms of exposure to mold spores and microbial volatile organic compounds (mVOCs). Bleach is ineffective on porous surfaces like drywall; it only bleaches the surface color and does not address the root infestation within the material. In Dubai's high-humidity climate, improper handling can aerosolize a massive number of spores, spreading the contamination throughout your villa and exacerbating your health issues.

UAE regulations and best practices, particularly for a case of this severity, mandate a controlled, professional response. The process requires isolating the contaminated area with negative air pressure, using HEPA filtration to capture spores, and the complete removal and safe disposal of affected porous building materials. The underlying cause—the AC leak—must also be identified and repaired by a qualified HVAC technician to prevent immediate recurrence.

For your health and the integrity of your property, a professional inspection is non-negotiable. I recommend you contact Saniservice immediately. Their certified team can conduct a thorough inspection, provide a detailed remediation plan, and ensure the job is done to the highest standards, making your villa safe again. You can reach them at 800-MOLDS (800-66537) or hello@saniservice.com.