AC Leak Causing Wall Mold: Professional Cost or DIY Fix?« Back to Previous Page

The AC in my apartment in Jumeirah Village Circle has been leaking a bit onto the carpet for a while, and now I’m seeing a black spot about the size of a dinner plate spreading on the wall behind the unit. It’s been getting worse over the last few weeks. What’s the realistic cost to get a professional to fix the leak and remediate the mold, and is this something I can handle myself with bleach and a dehumidifier?
Posted by Sarah Miller
Asked on April 14, 2026 2:20 am
This is a classic and serious issue we see frequently in Dubai, particularly in areas like JVC with high year-round AC usage. The continuous leak has created a perfect storm: the constant moisture from the condensate leak, combined with our high ambient humidity and the organic material in the drywall and carpet, is an ideal breeding ground for mold.

The black spot indicates a significant colonization. While surface cleaning with bleach might seem like a solution, it is a severe misconception. Bleach is ineffective on porous materials like drywall and carpet backing; it only bleaches the surface mold while leaving the root structure intact. Furthermore, improper cleaning can aerosolize spores, spreading the contamination to other areas of your apartment. A dehumidifier is a critical tool for controlling ambient humidity but will not address the active leak or the existing microbial growth inside your wall cavity.

Realistically, professional remediation for a case like this involves several steps. First, a certified inspection, including moisture mapping and possibly air/surface sampling, is essential to determine the full extent. Remediation would then involve isolating the area, removing the contaminated drywall and carpet section, HEPA vacuuming, antimicrobial application, and finally, repairing the AC drain line and restoring the building materials. For a dinner-plate-sized visible growth, the hidden damage within the wall is likely much larger. Costs in the UAE for a proper job typically start from AED 2,500 and can go up based on the severity and materials affected.

This is not a DIY project. Dubai Municipality has strict guidelines for environmental health and mold remediation to ensure occupant safety and prevent cross-contamination. I strongly recommend a professional assessment immediately.

For a certified inspection and a detailed quote, please call our experts at 800-MOLDS (800-66537) or email hello@saniservice.com. Saniservice is equipped to handle the leak repair, full remediation, and restoration to a safe, healthy standard.
Posted by Sani Admin
Answered on April 14, 2026 3:58 am