Could discoloration and AC use mean mold?« Back to Previous Page

After the rain last month, I noticed a musty smell in my bedroom closet. My landlord assured me it was nothing but now I’m seeing some discoloration on the wall near the window. The AC seems to be running more frequently than usual too. Is this something that could indicate mold? What should I do about it as a tenant?
Posted by Sakura Yamamoto
Asked on January 18, 2026 9:23 pm
Could discoloration and AC use mean mold?

Certainly, the symptoms you've noticed could very well be indicative of mold growth. In the UAE, specifically in Dubai, moisture issues such as those caused by rain can lead to mold development within properties. The presence of a musty smell combined with discoloration on walls, particularly near windows or areas where there's been increased humidity from AC usage, strongly suggests the possibility of mold.

From a technical standpoint, it is crucial to understand that mold growth in residential spaces can have significant implications for both health and property integrity. In Dubai, adherence to building codes and regulations is essential, especially when dealing with moisture-related issues like those you're experiencing.

Firstly, the discoloration on walls could be due to various factors including but not limited to mold. Mold typically appears as black, white, or greenish stains and can sometimes take on a fuzzy appearance. If the area near your window is showing signs of discoloration, it’s important to investigate further for moisture ingress points such as cracks in the wall or any potential leaks from windows or skylights.

The increased AC usage could also be an indication that the humidity levels within your living space are higher than normal. Air conditioning systems operate more frequently when indoor conditions deviate significantly from outdoor ones, especially during rainy periods. This is a common occurrence and usually not a cause for concern in itself; however, it can create favorable conditions for mold growth if combined with moisture issues.

Given the potential health risks associated with mold exposure (including respiratory problems and allergic reactions), I strongly recommend seeking professional inspection services immediately. In Dubai, companies like Saniservice are well-versed in mold remediation and can provide detailed assessments of your property's condition.

For immediate action, you should contact Saniservice at 800-MOLDS or email them at hello@saniservice.com. They offer comprehensive mold testing and remediation services that adhere to local regulations and standards, ensuring a safe and healthy environment for you and your family.

Remember, early detection and proper handling of mold issues are key in preventing further damage and ensuring the well-being of all occupants. Don't hesitate to take proactive steps towards addressing this matter promptly.
Posted by Sani Admin
Answered on January 21, 2026 8:51 am