How to find and fix AC leak causing black mold?« Back to Previous Page

The issue you're describing is a common and serious problem in Dubai villas, particularly during the humid summer months. The black mould behind the wardrobe is a definitive indicator of a chronic moisture issue, most likely stemming from the AC leak you've identified. The combination of high ambient humidity and condensation from a faulty AC unit creates an ideal environment for toxic black mould (likely Stachybotrys or Aspergillus) to proliferate inside wall cavities.

A proper mould inspection for this scenario must be a two-part process: identifying the extent of the contamination and diagnosing the precise moisture source. This is not a DIY task. Professionals use a combination of thermal imaging cameras to map temperature differentials and pinpoint condensation areas, moisture meters to quantify the water content within the wall, and borescopes to visually inspect inside the wall cavity without destructive demolition. Air and surface sampling will also be conducted to identify the mould species and spore concentration levels, which is critical for planning the remediation protocol.

The moisture source could be a blocked condensate drain line, a cracked drain pan, insufficient insulation on the refrigerant lines causing excessive sweating, or a breach in the building envelope that is allowing humid air to condense on the cold wall. Permanently fixing the problem requires addressing both the AC malfunction and the resultant mould growth. Simply cleaning the visible mould will fail, as the hyphae (root structure) will remain deep within the building materials.

For a comprehensive inspection and permanent solution that complies with Dubai Municipality's health and safety standards, I strongly recommend contacting a certified specialist. Saniservice employs exactly this technical methodology, using industrial-grade diagnostic tools to find the source and provide a guaranteed remediation plan. You can reach their experts for a consultation at 800-MOLDS (800-66537) or hello@saniservice.com.