Mold in wardrobe: DIY bleach or call a pro?« Back to Previous Page

Black mould growth in wardrobes on exterior walls is a common issue in Dubai's climate, especially in older villas in areas like Al Barsha. The combination of high outdoor humidity and year-round air conditioning can create significant condensation inside walls, providing the perfect environment for mould. The fact that it's spreading and correlating with your wife's stuffy nose suggests it's an active colony.

Using bleach is not recommended. While it can remove the visible stain on non-porous surfaces, it is largely ineffective on porous materials like drywall and wood. Bleach is mostly water, which can actually feed the mould roots deep within the material, causing it to return stronger. More importantly, bleaching actively growing mould can cause it to release a large number of spores and mycotoxins into your indoor air as a defense mechanism, potentially worsening respiratory symptoms.

For a small, contained area, a professional assessment is strongly advised. The visible spots are often just the "fruit" of a larger hidden problem within the wall cavity. A reputable inspector will use a moisture meter to determine the source of the dampness—whether it's condensation, a small leak, or capillary rising damp—and a borescope to see inside the wall. Without addressing this root cause, any cleaning is temporary.

The remediation process for a small area typically involves isolating the space, using HEPA filtration to capture airborne spores, safely removing affected materials, and treating the area with specialized antimicrobial solutions. The final, critical step is identifying and rectifying the moisture source to prevent recurrence. The cost is largely dependent on the extent of the hidden damage and the moisture source correction required, so it's best to request an on-site assessment for an accurate scope of work.