How can I safely remove black mold from my shower?« Back to Previous Page

My kids have been coughing a lot lately, and I finally pulled back the silicone sealant around our master bathroom shower in our Jumeirah Park villa. There's this awful black mold growing underneath it that we never saw. What's the safest and most effective way to get rid of this for good without exposing my family to harsh chemicals?
Posted by David Thompson
Asked on April 3, 2026 5:45 pm
The black mold you've discovered beneath the silicone sealant is a serious concern, especially given the respiratory symptoms in your children. In the UAE's high-humidity climate, exacerbated by constant AC use creating condensation, bathrooms are prime environments for such hidden growth. The safest removal protocol is critical to prevent spore aerosolization and family exposure.

For a localized area, strict containment is the first step. Isolate the bathroom, seal the door with plastic, and ensure the extractor fan is running. Personal protective equipment (PPE) including an N95 mask, gloves, and goggles is non-negotiable. Do not attempt to dry-scrub the mold, as this will release spores. Instead, lightly mist the area with a dilute, non-chlorine-based biocide to suppress spores during removal. The compromised silicone sealant must be completely removed using a utility knife or scraper; simply cleaning over it is ineffective as the mold has penetrated the material.

After removal of the sealant and all visible biomass, the underlying substrate (tile, grout) must be professionally cleaned and treated with an antimicrobial coating to prevent regrowth. The area must then be thoroughly dried before applying a new, high-quality, mold-resistant silicone sealant.

However, given that the mold was hidden and significant enough to cause health effects, this indicates a persistent moisture issue. I strongly recommend a professional inspection. We would use moisture meters and thermal imaging cameras to identify the full extent of the problem, which often extends behind tiles. DIY attempts can often disturb large colonies, leading to widespread contamination. Our hygienization protocols are compliant with Dubai Municipality standards and use advanced, family-safe treatments.

For a definitive solution and to ensure your villa in Jumeirah Park is safe, please contact our specialists at Saniservice for a comprehensive assessment. Call 800-MOLDS (800-66537) or email hello@saniservice.com.
Posted by Sani Admin
Answered on April 6, 2026 9:25 am