Is black shower grout the landlord's responsibility to fix?« Back to Previous Page

That black grout is almost certainly mold, and it's a common issue in Dubai bathrooms due to the high humidity and condensation from constant AC use. Scrubbing with bleach only removes surface discoloration; the mold's root structure (hyphae) remains deep within the porous grout, which is why it returns so quickly.

Under Dubai rental law (Law No. 26 of 2007), the responsibility for repair depends on the nature of the issue. The landlord is responsible for structural repairs and fixing issues related to the building's integrity, such as internal water leaks within the walls or faulty waterproofing that is causing persistent dampness. As the tenant, you are typically responsible for minor maintenance and keeping the property clean.

Since the mold is on the grout surface, it often starts as a tenant maintenance issue. However, its persistent return strongly suggests an underlying problem the landlord must address, such as failed shower sealant, cracked tiles allowing water ingress, or inadequate ventilation. The musty smell indicates it may be spreading behind the tiles.

Your first step is to formally notify your landlord or property management company in writing about the recurring problem. Clearly state that superficial cleaning is not resolving it and you suspect a hidden defect. Request a professional inspection to determine the source of the moisture. If the inspection reveals the cause is a structural flaw or faulty waterproofing, the remediation and repair become the landlord's legal obligation. For your health, consider a professional mold inspection to assess the extent; they can use moisture meters and borescopes to check behind tiles without damage.