Mold on wall: DIY clean or hire professional in Dubai?« Back to Previous Page

Leaking AC units in Dubai are a primary cause of wall mold due to the constant condensation and high humidity. The black patches behind your wardrobe are a serious sign of sustained moisture, and the enclosed space creates a perfect environment for growth.

For a small area, a DIY approach can be considered if the mold is only on the surface and the underlying cause—the AC leak—is fixed first. However, bleach is not recommended; it is mostly water and can feed mold deep within drywall. A better DIY solution is a vinegar or hydrogen peroxide-based cleaner. You must wear an N95 mask, gloves, and goggles to avoid inhaling spores or getting them on your skin.

You should absolutely hire a professional if the mold has penetrated the drywall or plaster, if the area is larger than one square meter, or if household members have respiratory issues. Professionals use containment barriers and HEPA filtration to prevent cross-contamination, which is a significant risk when disturbing mold in a bedroom. Remediation involves removing and replacing the affected wall material to ensure it's gone from the inside out.

The cost is not typically based on room size alone but on the extent of the damage and the required containment measures. For a job involving a section of wall, expect a qualitative cost range from a few hundred for a very small, contained repair to significantly more if the leak has caused structural damage. The essential first step is a professional assessment to determine the moisture level within the wall and the full extent of the infestation, as what's visible is often just the tip of the iceberg.