Urgent to hire pro for bathroom mold or DIY?« Back to Previous Page

Black spots in grout with a persistent musty smell indicate active mold growth, which is common in Dubai's high humidity. For a small, surface-level area (under one square foot), a DIY approach is possible. Use a dedicated grout mold remover or a paste of baking soda and vinegar. Scrub thoroughly, then dry the area completely with a fan or heater.

However, if the mold returns quickly after cleaning, has spread behind caulking, or if the musty smell persists despite cleaning, a professional inspection is advised. This often means the moisture source is deeper, possibly within the wall or from a leak. In such cases, DIY cleaners only address surface discoloration, not the root cause.

Given your location in an apartment, the responsibility for remediation depends on the source. If the moisture is from a building envelope issue or a pipe leak, your building management may need to address it. A professional assessment can identify the exact species and moisture source, which is crucial for a permanent solution, especially with the constant humidity from showers and year-round AC use.