AC leak causing mold; call landlord or cleaning service?« Back to Previous Page

A water leak from your AC unit in a humid climate like Dubai creates ideal conditions for mold growth, and those dark patches are a clear sign of microbial activity. The first and most critical step is to stop the source of moisture. Contact your landlord or building management immediately to have the AC unit repaired, as this is their responsibility under typical tenancy agreements. Continuing to run the faulty unit will only worsen the problem.

For the visible mold, a small area (under one square meter) can sometimes be cleaned with a solution of diluted detergent, but never use bleach as it can worsen airborne spores. However, given the leak originated from the AC—a system that can spread spores throughout your apartment—the situation often requires professional assessment. The mold you see on the wall is likely just the surface manifestation; the internal ductwork may also be contaminated.

Given Dubai’s high humidity, which promotes rapid regrowth, a superficial cleaning is rarely a permanent fix. A professional inspection can determine the extent of the problem, identify the mold species, and ensure it is remediated correctly to prevent recurrence. They use containment, HEPA filtration, and antimicrobial treatments that address the root cause. After notifying your landlord, it is prudent to consult a certified mold inspection company to assess the full scope. They can provide a documented report for your landlord, outlining the necessary repairs and remediation to ensure the issue is resolved properly.