Mold in AC vent: hire professional or building maintenance?« Back to Previous Page

For a visible mold problem impacting your health, your building's maintenance team is not the best first call. While they can clean the vent cover, the mold colony is likely inside the ductwork or on the cooling coils, which requires specialized inspection and remediation tools they typically lack.

In Dubai's climate, year-round AC use creates constant condensation, making the internal system a prime breeding ground for mold when not properly maintained. A professional remediation company will conduct an inspection, often with a borescope, to assess the full extent of contamination inside the ducts and at the evaporator coil—the most common source. They then use HEPA vacuuming and antimicrobial treatments designed for HVAC systems to address the root cause, not just the visible spots.

The cost for a single room can vary significantly. It depends on the severity of the infestation, how far the contamination has spread within the ductwork, and whether the AC unit itself requires cleaning. For a contained issue, the investment is typically moderate, but it rises if the entire system needs attention. Expect to pay more for a company that provides before-and-after lab testing to verify the mold spore count has been effectively reduced, which is the only way to confirm the job was done correctly.

Given your allergy symptoms and visible growth, a professional assessment is strongly recommended to ensure the environment is truly healthy.