Black spots in closet after rain: clean or call pro?« Back to Previous Page

Those black spots are likely mold, and your timing points directly to the cause. The heavy March rains are a classic trigger in Dubai, where water can seep into external wall cavities if there's even a minor breach in the building's waterproofing. The trapped moisture then migrates inward, and your dark, undisturbed closet provides the perfect humid environment for mold to bloom on the wall surface.

For cleaning a small area (under one square meter), you can carefully wipe it with a solution of diluted white vinegar or a dedicated mold remover, wearing an N95 mask and gloves to avoid spore inhalation. However, this only addresses the symptom, not the cause. The moisture inside your wall will allow it to return.

The correct fix requires a two-step approach. First, you need a professional inspection to identify and repair the external moisture intrusion point—this is a job for a qualified building contractor or waterproofing specialist. Second, once the leak is sealed and the wall has completely dried out (which can take weeks), the internal staining and any residual mold can be professionally remediated to ensure it’s properly removed.

For a case like this, starting with a certified mold inspector who can use moisture meters and thermal imaging to pinpoint the exact source of the dampness is the most effective course of action. They can provide a report detailing the necessary repairs for your building management or a contractor.