How to treat mold in Al Barsha villa AC vents?« Back to Previous Page

My kids have been coughing and I suspect it's from mold in our villa's AC vents in Al Barsha. We had a small leak near the unit during the last big rain a month ago, and now every time the AC kicks on there's a damp, earthy smell that fills the living room. What's the most effective way to get the ducts professionally cleaned and treated to prevent this from happening again?
Posted by Arun Iyengar
Asked on May 14, 2026 1:55 pm
The damp smell when your AC kicks on strongly suggests microbial growth in the system, a common issue in Dubai villas after water intrusion. The high humidity and constant AC use create ideal conditions for mold, especially if a leak introduced moisture into the ductwork.

For a proper remediation, start with a professional inspection. A certified inspector will use a borescope to visually confirm growth inside the ducts and should recommend air or surface sampling to identify the mold species. This is crucial, as some types require more aggressive containment protocols. In Dubai, remediation companies should adhere to IICRC S520 standards for mold remediation.

The most effective cleaning is not a simple spray-and-wipe. The process should involve containing the vents with negative air pressure to prevent spores from spreading into your home. Technicians will then use specialized HEPA vacuuming and agitation tools to dislodge debris from all duct surfaces. After cleaning, an EPA-registered antimicrobial treatment should be applied to the interior of the ducts to inhibit regrowth.

To prevent recurrence, the initial leak must be repaired to prevent new moisture entry. For a long-term solution, ask the remediation company about installing a UV-C light system inside the AC unit. These lights are highly effective at keeping the coil and interior surfaces sterile between professional cleanings. Given the climate, having your entire AC system, including the evaporator coil and drip pan, inspected and cleaned annually is a prudent measure for indoor health.
Posted by Sani Admin
Answered on May 16, 2026 4:54 am