AC leak causing black mold: professional help and cost estimate?« Back to Previous Page

The AC in our villa in Jumeirah 3 seems to be leaking into the wall behind it, and now we’ve found a large patch of black mold spreading there. It’s been getting worse since the last humid spell a couple of weeks ago. I’m worried about the cost, but also about my family’s health. For a job like this involving the AC unit and the interior wall, should I just hire a professional mold remediation company, and what’s a rough estimate I should expect for the inspection and cleanup?
Posted by Fahad Al-Nasser
Asked on April 27, 2026 2:35 pm
Yes, for a significant AC leak and visible black mold spreading into the wall, professional remediation is strongly recommended. This is a two-part issue: fixing the AC leak at its source and addressing the contaminated building materials.

In Dubai's climate, the constant humidity and condensation from a leaking unit create an ideal environment for mold to proliferate inside wall cavities, often making the visible patch just a fraction of the actual problem. A proper remediation company will first conduct an inspection to determine the full extent of the moisture damage and mold growth behind the wall. The cleanup involves containing the area, safely removing the affected drywall and insulation, HEPA vacuuming, and antimicrobial treatment. Crucially, the AC leak itself must be repaired by a qualified HVAC technician to prevent immediate recurrence.

Cost is driven by the scale of demolition required to access and remove all contaminated materials. For a localized leak in a single wall, the process is typically more contained. For a widespread issue, it becomes more complex. You should request a detailed, on-site assessment and quotation. Reputable providers will break down costs for diagnostics, containment, demolition, cleanup, and post-remediation verification testing to confirm the space is truly clean and dry.
Posted by Sani Admin
Answered on April 30, 2026 3:35 am