How to find hidden AC leak causing mold in Dubai?« Back to Previous Page

A hidden AC leak is a common cause of mold in Dubai's climate, as condensation from chilled air can accumulate in poorly insulated ducts or drain pans. The dampness you describe in an interior closet is a strong indicator. The inspection must find both the mold and the moisture source to be effective.

Start with a visual check of the AC unit's drain pan and condensate drain line for blockages or disconnections—these are frequent culprits. However, since the wall is affected, the leak could be inside the ductwork or wall cavity, which requires professional diagnostic tools. A reputable inspector will use a borescope camera to look inside walls and ducts, a moisture meter to quantify dampness levels in building materials, and possibly a thermal imaging camera to identify cold spots where condensation is forming.

In Dubai, ensure the inspection company provides a detailed report with documented evidence (photos, moisture readings) and does not just offer to clean it immediately. The goal is to identify the root cause. For a situation involving a wall cavity, a lab test of the mold itself is often secondary to first locating and stopping the water intrusion.

Any company you hire should be able to explain Dubai Municipality's guidelines on indoor air quality and HVAC systems. The most reliable assessments are those that focus on delivering measurable data about the moisture source, not just the visible mold.