Mold in bathroom grout: professional removal or handyman?« Back to Previous Page

That black and green grout is a classic sign of a persistent mold issue, and it's very common in Dubai bathrooms due to the high humidity and condensation from showers. The fact that it returned after bleaching and the musty smell is worsening suggests the mold has penetrated deep into the porous grout and possibly behind the tiles.

A handyman can often handle surface-level mold on non-porous surfaces like tiles. However, for deep-seated mold in grout that keeps returning, a professional assessment is recommended. The key difference is in the diagnostic approach and the guarantee of results. A professional company will identify the moisture source—often poor ventilation or a tiny leak—and use methods that address the root cause, not just the visible growth. They should also provide documentation, like before-and-after testing, to verify the mold has been effectively treated.

For a small bathroom, costs can vary widely depending on the extent of the problem and whether the grout needs to be re-done. A simple surface treatment will be at the lower end, while a full remediation involving moisture mapping and potential regrouting will be more involved. The best approach is to request an on-site assessment from a certified provider to get an accurate scope and quote. In the meantime, improve ventilation by running the exhaust fan for longer after showers and wiping down wet surfaces to reduce moisture.