Is this mold from an AC leak needing a pro?« Back to Previous Page

We've lived in our Mirdif villa for 2 years and just noticed black spots spreading on the ceiling in the guest bedroom closet. It started after that really humid spell we had a few weeks back, and now the musty smell is getting stronger. Is this a small job I can handle myself with bleach, or is it a sign of a bigger AC leak that needs a professional? What's the typical cost range for a proper mold inspection and treatment here?
Posted by Pranav Mishra
Asked on April 14, 2026 12:20 pm
Black spots with a musty smell in a closet after a humid spell strongly suggest a moisture issue. In Mirdif villas, this is often due to condensation from your AC system, a leak in the ductwork running through the ceiling void, or a roof leak. The humidity we experience makes condensation a frequent culprit.

Bleach only removes surface discoloration and can worsen the problem by adding moisture. It does not address the root cause—the hidden water source—or kill the mold roots. For a spreading issue with a strong odour, a professional inspection is advised. They use moisture meters and thermal imaging to locate the exact source of the leak within your walls or ceiling, which is critical for a permanent fix.

The cost for a proper inspection and moisture assessment in Dubai typically ranges from a few hundred to over a thousand dirhams, depending on the villa size and inspection depth. Treatment cost depends entirely on the leak's severity and the extent of mold growth found. For health safety and to prevent structural damage, identifying and repairing that hidden water source is the essential first step.
Posted by Sani Admin
Answered on April 15, 2026 10:28 am