AC leak causing mold smell; DIY or call Dubai professional?« Back to Previous Page

That damp, earthy smell is a strong indicator of active microbial growth, and your concern about it being inside the walls is valid. In Dubai's high humidity, a small AC leak can quickly lead to mold colonizing the drywall, insulation, and carpet backing, which are all out of sight.

While you can clean the visible surface with a diluted detergent, bleach is not recommended as it doesn't kill the roots and its high water content can feed the mold deeper in the materials. A dehumidifier is an excellent tool to dry the area but will not address established growth.

For your situation—a persistent smell and a visible stain that has been damp for weeks—a professional inspection is the prudent step. The goal is to identify the moisture source, assess the extent of the contamination behind the wall, and get the mold properly identified. Some species commonly found in AC systems and damp buildings in the UAE, like Aspergillus, can cause significant irritation and allergic reactions.

A proper inspection uses moisture meters and thermal imaging to see inside the walls without destructive probing. The most definitive step is air and surface sampling sent to an accredited microbiology lab, which identifies the species and concentration. This evidence is also crucial for presenting a case to your building management in JVC, as they are typically responsible for fixing the AC leak itself, which is the root cause. You can handle the cleanup once the leak is fixed and the full scope is known, but the diagnostic step is key to doing it right.