How to permanently fix recurring AC mold in Dubai?« Back to Previous Page

The AC in my master bedroom closet has been leaking for a while, and now I've found black spots spreading on the back wall and on some of my shoes. We had a guy come to clean it last week, but the dampness and that weird smell are already coming back. I'm worried it's just going to keep happening. What's the most effective way to permanently fix the root cause of this mold in Dubai, not just the visible stuff?
Posted by Fatima El-Masri
Asked on March 19, 2026 3:44 pm
The recurring mold in your master bedroom closet is a classic symptom of a deeper issue that a simple cleaning cannot address. The root cause is persistent moisture from the AC leak, compounded by Dubai's high ambient humidity, which creates a perfect environment for rapid microbial regrowth.

A permanent fix requires a systematic, technical approach. First, the AC leak must be identified and repaired by a certified HVAC technician. This could be a clogged condensate drain line, a damaged drain pan, or faulty insulation causing excessive condensation—all common in our climate due to the year-round AC load. Simply cleaning the evaporator coil is insufficient.

Once the moisture source is eliminated, the mold remediation must begin. The black spots you see are likely the fruiting bodies of the mold colony, but the actual hyphae (root system) penetrate porous materials like drywall and shoe leather. Effective remediation involves:
1. Containment: Sealing the area with polyethylene sheeting to prevent cross-contamination.
2. Removal: Disposal of non-salvageable, porous materials (e.g., the affected drywall, insulation, and likely the shoes).
3. Hygienization: Aggressive HEPA vacuuming and abrasive cleaning of all surfaces, followed by application of an EPA-approved antimicrobial agent to eliminate residual spores.
4. Drying: Using professional-grade air movers and dehumidifiers to bring the moisture content of the remaining structure to below 15%, ensuring it is bone-dry.

Given the recurrence, a professional inspection is critical. We adhere to Dubai Municipality guidelines and use moisture meters and thermal imaging cameras to detect hidden dampness within walls. DIY attempts often fail because they address only surface-level contamination.

For a permanent solution to this systemic problem, I recommend contacting our specialists at Saniservice. Call 800-MOLDS (800-66537) or email hello@saniservice.com for a comprehensive assessment and remediation plan that guarantees the root cause is resolved.
Posted by Sani Admin
Answered on March 22, 2026 6:55 am