Found black mold under shower sealant. Emergency or DIY fix?« Back to Previous Page

Based on the conditions you've described in your Jumeirah apartment, I would strongly advise treating this as a situation requiring professional assessment. While surface mold on grout can sometimes be a DIY project, the discovery of significant black mold growth underneath the silicone sealant is a serious indicator of a deeper, systemic moisture issue. This suggests the mold has breached the primary moisture barrier, and a simple surface cleaning will be entirely insufficient.

The relentless humidity in Dubai, combined with year-round AC use that creates significant condensation, provides a perfect breeding ground for mold. The musty smell you've noticed for weeks is a clear sign of microbial volatile organic compounds (MVOCs), confirming active growth. Attempting a DIY fix with vinegar may temporarily bleach the visible spores but will not address the root moisture problem or the hyphal fragments embedded within the substrate. The mold will inevitably return, often worse than before.

Furthermore, improper disturbance can aerosolize spores, contaminating other areas of your ensuite and potentially your HVAC system. For a comprehensive and permanent solution, the compromised sealant must be completely removed, the underlying area professionally remediated with EPA-approved biocides, and the moisture source identified and corrected before a new, mold-resistant sealant is applied.

Given the potential health risks and the complexity of a proper remediation, I recommend an immediate professional inspection. Our certified team at Saniservice is equipped with moisture meters and thermal imaging cameras to identify the exact extent of the infestation and the source of moisture. We follow strict Dubai Municipality guidelines for safe and effective remediation. Please call us at 800-MOLDS (800-66537) or email hello@saniservice.com to schedule an assessment today.