Black bathroom grout and damp smell: professional or landlord?« Back to Previous Page

The grout between the tiles in our Jumeirah Village Circle bathroom has started turning black, and there's a really damp, earthy smell that just won't go away no matter how much I clean. It's been like this since the humidity really spiked a few weeks back. I'm worried it's spreading behind the walls. What's the best way to handle this properly, and should I call in a professional cleaner or go straight to my landlord?
Posted by Megan Harris
Asked on April 12, 2026 5:15 am
That black grout and persistent earthy smell are classic signs of a mold issue, likely triggered by the high humidity. Jumeirah Village Circle's villa construction and bathroom design often lack sufficient ventilation, creating a perfect environment for mold growth.

For a rental property, your first step is to notify your landlord or property management company in writing immediately. Under Dubai rental regulations, structural issues like potential water leaks or inadequate ventilation that lead to mold are typically the landlord's responsibility to investigate and remediate. Document the issue with clear photos and a dated description.

Do not attempt a simple surface clean with bleach, as this will only temporarily remove the visible stain without addressing the root moisture problem or the spores likely embedded in the porous grout. The damp smell strongly suggests the issue may extend behind the tiles.

Given the symptoms, a professional inspection is warranted to determine the source of moisture—whether it's condensation from your AC, a hidden pipe leak, or inadequate waterproofing. They can use moisture meters and borescopes to check inside wall cavities without unnecessary demolition. If the mold is superficial, a specialized deep cleaning and sealing of the grout may suffice. However, if moisture is present within the wall, tiles may need to be removed for proper remediation and to prevent structural damage and health impacts. A reputable inspector can provide the evidence needed to ensure your landlord addresses it correctly.
Posted by Sani Admin
Answered on April 13, 2026 12:10 am