Persistent bathroom mold in Dubai: professional cleaning cost?« Back to Previous Page

The grout between the tiles in my master bathroom shower has been turning black for a couple of months now, and I just noticed a weird pinkish mold starting to spread on the ceiling. I’ve tried cleaning it with bleach spray, but it comes back within a week. I’m in a villa in Al Barsha and worried about it getting worse, especially with the humidity. For a problem this persistent, is it better to just call a professional cleaning company, and what’s the typical cost range in Dubai for treating something like this?
Posted by Charles Lee
Asked on April 21, 2026 12:20 am
Black mould in grout and pink mould on ceilings are common in Dubai's humid bathrooms, but its quick return after bleach cleaning indicates a deeper issue. Bleach only removes surface discoloration; it does not kill the mould roots or address the moisture source.

For a villa in Al Barsha, the primary cause is almost certainly high humidity and condensation, exacerbated by year-round AC use creating temperature differentials. The pink substance is often a bacterial mould (Serratia marcescens) that thrives on soap and shampoo residue in humid air.

Professional remediation is advised for persistent cases. A proper treatment involves diagnostic inspection to identify all moisture sources, HEPA vacuuming of spores, application of EPA-approved antimicrobials to kill the roots, and sealing of grout to prevent recurrence. The most critical step is identifying and correcting the ventilation issue; simply cleaning will fail without it.

Costs for professional treatment vary significantly based on the bathroom's size, extent of contamination, and required repairs (like regrouting). You can expect a notable difference between a basic clean and a full moisture investigation with remediation. Always request a detailed assessment and quote that includes post-treatment verification to ensure the problem is resolved.
Posted by Sani Admin
Answered on April 21, 2026 11:45 am