Mold inside wall: professional remediation needed and cost?« Back to Previous Page

For a mold issue inside a wall caused by an AC leak, professional remediation is strongly recommended. This is not a surface-level problem; the fungal growth is within the building envelope, and wiping visible patches with vinegar will not address the root moisture source or the hidden colonization.

The constant high humidity in Dubai, combined with a persistent water leak, creates an ideal environment for mold to penetrate deep into plaster, insulation, and concrete. A proper fix requires three steps: first, stopping the AC leak at its source. Second, the affected section of drywall and any wet insulation must be carefully removed under containment to prevent spores from spreading to other parts of the villa. The cavity then needs professional drying and antimicrobial treatment. Finally, the area must be rebuilt with new materials.

Attempting this yourself risks inadequate containment, which can cross-contaminate your home, and incomplete moisture removal, guaranteeing the mold will return. For health and property protection, a certified remediation company that follows IICRC standards is necessary. They will use containment barriers, HEPA filtration, and moisture meters to verify the wall cavity is dry before reconstruction.

Cost is dependent on the extent of the damage—specifically how much wall and insulation must be removed and how long the drying process takes. For a contained closet area, expect the project to be a significant undertaking. The only way to get an accurate estimate is to have a detailed assessment done on-site.