How to clean and prevent bathroom mold in Jumeirah?« Back to Previous Page

We've lived in our Jumeirah apartment for 2 years and just noticed a bunch of black spots growing in the grout between the tiles behind the toilet. It’s a small bathroom with no window and the exhaust fan is pretty weak. What’s the most effective way to clean this myself, and how can I stop it from coming back for good?
Posted by Divya Verma
Asked on May 2, 2026 2:10 pm
The most effective DIY cleaning for bathroom mold on grout is a paste of baking soda and white vinegar. Apply it directly to the spots, let it sit for 15 minutes, then scrub with a stiff brush. For persistent growth, a diluted chlorine bleach solution (1 part bleach to 4 parts water) is more aggressive, but ensure the room is well-ventilated during use.

Preventing its return requires addressing the root cause: humidity. In Jumeirah's climate, your windowless bathroom's weak fan is the main issue. Run the exhaust fan for at least 30 minutes after every shower. If it's underpowered, consider upgrading it to a higher-capacity model. Wipe down wet walls and tiles with a squeegee after use to remove standing moisture. Keep the bathroom door open when not in use to improve air circulation.

For a lasting solution, a professional assessment can identify if the mold growth is superficial or has penetrated behind the tiles, which is common when grout degrades. They can also measure the humidity level to confirm if your exhaust fan is sufficient for the room's volume, a standard practice in Dubai villa and apartment inspections. If the mold returns quickly after thorough cleaning, this indicates a deeper issue best diagnosed with a lab test to identify the species and its source.
Posted by Sani Admin
Answered on May 2, 2026 9:26 pm