How to permanently remove mold from a humid shower?« Back to Previous Page

Black mold in shower grout is common here due to Dubai's high humidity and condensation. The most effective removal method is a targeted fungicidal cleaner, not bleach. Bleach only removes surface color and can push the mold's roots deeper into the porous grout. Look for a cleaner specifically labeled as a fungicide or mold remover.

Apply it according to the directions, let it sit to penetrate, then scrub with a stiff brush. For severe, recurring growth, the underlying issue is persistent moisture. Your exhaust fan may be undersized for the space. To verify, hold a single square of toilet paper to the vent when it's on; if it doesn't hold the paper, the fan isn't effective. Consider upgrading to a higher-capacity model.

After cleaning, sealing the grout with a high-quality impregnating sealer is critical to prevent moisture absorption. Run the exhaust fan for at least 30 minutes after every shower and wipe down the walls with a squeegee to remove standing water. If the growth is extensive, has a musty odor, or returns quickly after thorough cleaning, a professional inspection can identify if there's a hidden moisture source or if the mold type requires specialized remediation.