Mold in bathroom grout: DIY fix or hire pro in Dubai?« Back to Previous Page

We've lived in our Jumeirah apartment for two years and just noticed these small black spots appearing in the grout between the wall tiles near the shower. I tried scrubbing with bleach, but it came back after a couple of weeks, and now there's a persistent damp smell. I'm worried it's spreading behind the tiles. What's the typical cost range here in Dubai to get a small bathroom professionally treated for mold, and is it absolutely necessary to hire someone, or are there stronger DIY solutions I can try first?
Posted by Agnieszka Kowalski
Asked on April 7, 2026 11:00 am
The black spots in your grout are likely mold feeding on soap residue and moisture, and its return after bleaching suggests a deeper issue. In Dubai's high humidity, bathrooms without excellent ventilation create perfect conditions for mold to regrow and potentially spread behind tiles.

For a small, recurring patch, try a dedicated grout mold remover or a paste of baking soda and vinegar, scrubbing thoroughly. After cleaning, run the exhaust fan during and for 30 minutes after showers and wipe down wet surfaces to reduce moisture. If the smell persists or you suspect growth behind the tiles, a professional inspection is recommended to assess the extent. They use moisture meters and borescopes to see behind walls, as hidden mold is common here due to condensation from year-round AC use.

The cost for professional treatment in Dubai for a small bathroom typically ranges from a few hundred to over a thousand dirhams, depending on the extent of contamination and whether wall removal is needed. It's necessary if DIY fails, the musty smell remains, or for residents with allergies, as improper handling can aerosolize spores. Reputable providers will explain the process and may recommend post-remediation verification testing from an independent lab to confirm the space is measurably cleaner.
Posted by Sani Admin
Answered on April 7, 2026 9:07 pm