Can I clean shower mold with bleach or need pro?« Back to Previous Page

We've lived here in Jumeirah for 2 years and just noticed these black spots spreading in the grout between the wall tiles near the shower. The room has no window and the exhaust fan seems weak, so it never fully dries out. Is this something I can handle with a bottle of bleach from the supermarket, or do I need to call one of those mold removal companies here in Dubai? What’s the typical cost for a professional to treat a small bathroom like this?
Posted by Lakshmi Kumar
Asked on March 14, 2026 9:00 pm
While bleach can remove the surface discoloration from mold in your shower grout, it is a highly ineffective and temporary solution, especially in Dubai's humid, AC-dependent climate. The high humidity and constant condensation in a poorly ventilated bathroom like yours in Jumeirah create a persistent moisture problem. Bleach is mostly water, which can actually feed the mold roots (hyphae) penetrating deep into the porous grout and behind the tiles. It also fails to address the underlying moisture issue and releases harmful volatile organic compounds (VOCs) into your indoor air.

For a recurring problem indicating a persistent moisture source, a professional assessment is strongly recommended. Our certified inspectors use moisture meters and thermal imaging cameras to identify hidden dampness and air sampling to determine the spore count and species, which is crucial for your health. Some molds, like Stachybotrys, require specific remediation protocols.

For a small bathroom, a professional inspection and remediation service from a company like Saniservice typically starts from AED 1,000 onwards, depending on the extent of the infestation and required containment measures. This investment ensures the mold is eradicated at its source and that solutions like improving your ventilation are implemented to prevent rapid regrowth.

For a definitive diagnosis and a lasting solution, please call our experts at 800-MOLDS (800-66537) or email hello@saniservice.com for a consultation.
Posted by Sani Admin
Answered on March 16, 2026 10:46 am