Who fixes recurring black mold in rental shower grout?« Back to Previous Page

Recurring black mold in shower grout is a tenant responsibility to clean, but the landlord or building management is often responsible for the underlying cause—typically inadequate ventilation. Your tenancy contract should outline maintenance obligations, but standard practice holds tenants accountable for routine cleaning and landlords for the property's structural and mechanical systems.

Bleach only removes surface discoloration and can feed the mold's root structure inside the porous grout, causing it to return stronger. The high humidity in Dubai, especially in sealed Marina apartments with year-round AC use, creates constant condensation that fuels mold growth if not properly exhausted.

The root cause is almost always insufficient extraction. Check if your bathroom's exhaust fan is functional and powerful enough; it should be able to hold a piece of toilet paper against the vent when on. If it's weak or silent, report it to your building management as a faulty fixture. They are obligated under Dubai regulations to ensure essential ventilation systems are operational.

For persistent cases, a professional inspection can identify the specific mold species and moisture source. If the problem is building-wide or related to a hidden leak in the plumbing, the landlord must address it. Start by formally notifying your property manager in writing about the failed ventilation and recurring mold, as this creates a record of the issue.