Can I clean black shower grout myself or need professional?« Back to Previous Page

The grouting between the tiles in our Marina bathroom has started turning black, especially in the corners of the shower. It's been slowly getting worse over the last couple of months since the humidity really kicked in. We wipe it down, but it just comes back. Is this something I need to get a professional to handle urgently, or can I tackle it myself with a good cleaner this weekend?
Posted by Wei Takahashi
Asked on April 27, 2026 8:55 pm
Black shower grout in a Dubai bathroom is almost always a mold issue, fueled by the high humidity and condensation. You can attempt to clean it yourself if the affected area is small (less than one square foot) and the mold is only surface-level on the non-porous tile surface.

For a DIY approach, use a dedicated grout cleaner or a paste of baking soda and vinegar. Scrub with a stiff brush, then rinse thoroughly. The critical step is to dry the area completely with a towel and then run the bathroom's exhaust fan for at least an hour after showering to remove moisture.

If the black discoloration penetrates deep into the porous grout, keeps returning quickly after diligent cleaning, or if you notice a musty smell, it's a sign the mold has taken hold internally. In these cases, surface cleaning is insufficient. The underlying moisture problem needs to be addressed, and the compromised grout may need to be removed and replaced. A professional inspection can determine the extent of the growth and identify the source of persistent moisture, which is essential for a permanent solution in our climate.
Posted by Sani Admin
Answered on April 30, 2026 10:56 am