Should I clean black grout or report to landlord?« Back to Previous Page

Black grout in bathrooms is common in Dubai's humid climate, even with an extractor fan running. This is likely mold or mildew feeding on constant moisture from showers and condensation.

Your responsibility depends on the lease agreement and the extent of the problem. For simple surface mold on grout due to routine moisture, tenants are generally responsible for cleaning. However, if the issue is structural—such as a hidden leak in the plumbing behind the wall, faulty waterproofing, or a defective seal—this is the landlord's responsibility to repair.

For a persistent issue behind the toilet, first attempt to clean it with a dedicated grout cleaner or a solution of white vinegar and baking soda. If the black discoloration returns quickly or you notice a musty smell, there may be a deeper moisture problem. In older Jumeirah buildings, deteriorating sealant or cracked grout can allow water to seep into the walls, requiring professional remediation.

You should report it to your landlord, especially if your cleaning attempts fail. Document the issue with photos and note any persistent musty odors. Frame it as a potential moisture intrusion problem that could cause property damage if left unaddressed. For a definitive answer on the mold type and source, a professional inspection can identify if it's a simple humidity issue or a leak, which provides concrete evidence for your landlord.