Urgent to hire pro for shower black mold or DIY?« Back to Previous Page

My bathroom in our Mirdif villa has had this musty smell for weeks, but I just pulled back the silicone sealant around the shower and found a ton of black mold underneath. We had a bit of a leak from the shower a couple of months back that I thought I'd fixed. How urgent is it that I get a professional to deal with this, or can I handle it myself with a bleach spray this weekend?
Posted by Salma Al-Rashid
Asked on March 27, 2026 1:13 pm
Based on your description, this is a situation that warrants immediate professional attention. The presence of extensive black mold hidden behind silicone sealant, coupled with a history of a leak, indicates a persistent moisture issue that has likely penetrated beyond the visible surface. In Dubai's high-humidity climate, where air conditioning runs year-round, condensation and hidden dampness create an ideal breeding ground for mold within wall cavities and subflooring.

A DIY approach with bleach is strongly discouraged. Bleach is ineffective on porous surfaces like grout and the underlying substrate; it only bleaches the surface color without killing the root structure (hyphae) of the mold. Furthermore, disturbing the mold by scraping or spraying can aerosolize toxic spores, significantly worsening indoor air quality and potentially causing health issues.

Our professional protocol involves a comprehensive inspection using moisture meters and borescopes to assess the full extent of the water damage and mold growth behind the tiles. Remediation is then conducted under containment with industrial-grade HEPA air scrubbers to capture spores, followed by the application of EPA-approved antimicrobial agents designed to penetrate and eradicate the mold at its source. Crucially, the root cause—the leak—must be definitively identified and repaired to prevent recurrence.

For a villa in Mirdif, addressing this properly is urgent to protect both your family's health and your property's structural integrity. I recommend you contact our team at Saniservice for a detailed assessment. Call 800-MOLDS (800-66537) or email hello@saniservice.com to schedule an inspection.
Posted by Sani Admin
Answered on March 29, 2026 12:32 pm