AC leaking and black mold: DIY fix or call professional?« Back to Previous Page

The AC in my apartment seems to be leaking into the wall behind it in my Jumeirah Park villa, and now I’m seeing a big patch of black mold spreading on the wallpaper. It’s been getting worse since the humidity spiked a couple of weeks ago. Is this something I can tackle myself with bleach and a scrub brush, or do I absolutely need to call a professional mold removal company to handle it properly?
Posted by Soo Saito
Asked on March 29, 2026 3:06 pm
Based on your description, this is a situation that absolutely requires a professional assessment and remediation. The combination of an active AC leak, interior wall cavity penetration, and visible black mold growth on wallpaper in a Dubai villa is a serious concern that goes far beyond a simple surface cleaning.

Firstly, using bleach is strongly discouraged. It is ineffective on porous materials like drywall and wallpaper, as it only bleaches the surface mold without killing the roots. More critically, it can exacerbate the problem by adding moisture to an already saturated wall, creating a perfect environment for the mold to regrow even stronger. The high humidity we experience for much of the year in Dubai is a primary catalyst for this rapid spread.

The critical issue here is the hidden damage. The leak has almost certainly saturated the insulation and structural elements within the wall. This creates a massive, concealed reservoir of mold that is releasing spores into your indoor air, posing potential health risks. A proper remediation is not about scrubbing a stain; it involves identifying and stopping the moisture source (the AC leak), controlled containment of the area to prevent cross-contamination, expert removal of all affected porous materials (wallpaper, drywall, insulation), HEPA vacuuming, and antimicrobial treatment of the cavity.

In line with best practices and Dubai Municipality's emphasis on healthy indoor environments, a certified professional inspection is non-negotiable. They use moisture meters, thermal imaging cameras, and air quality tests to determine the full extent of the contamination.

For a situation of this severity in your Jumeirah Park villa, I strongly recommend you contact a certified professional company like Saniservice. They are equipped to handle the remediation to international standards and can also assist in coordinating the necessary AC repair to prevent recurrence. You can reach their experts for a consultation at 800-MOLDS (800-66537) or hello@saniservice.com. Do not delay, as the problem will only worsen in our climate.
Posted by Sani Admin
Answered on March 31, 2026 3:32 pm