While small surface mold can sometimes be cleaned with a dedicated fungicide, using bleach is not recommended. Bleach is ineffective on porous surfaces like drywall and ceiling materials, as it only removes the surface discoloration while leaving the root structure intact. More critically, the location (ceiling corner) and your health symptoms suggest a potential hidden moisture issue, possibly from a slow leak in the plumbing chase or insufficient ventilation. Disturbing it yourself could aerosolize spores and exacerbate your allergic reactions.

According to common strata regulations in Dubai, the responsibility typically falls as follows: The building management is responsible for the structural integrity of the building, including leaks from central pipes or the external envelope. The tenant or owner is usually responsible for the internal maintenance and the apartment’s ventilation system. However, the root cause must be professionally diagnosed.

I strongly recommend a certified mold inspection. A professional will use moisture meters and thermal imaging to identify the source of the moisture, assess the extent of the growth (including inside the ceiling void), and provide a protocol for safe remediation. For a definitive diagnosis and a solution that protects your health and property, contact our specialists at Saniservice. Call 800-MOLDS (800-66537) or email hello@saniservice.com for a comprehensive assessment.