Could sealed ducts cause a musty smell?« Back to Previous Page

After the rain last month, I noticed a strange damp smell lingering in my bedroom. The windows were sealed tight, so it’s not coming from outside. It’s like there's a musty odor trapped inside, almost as if something in the ducts is causing it. Has anyone else experienced similar issues with their home ducts?
Posted by Rahul Patel
Asked on January 6, 2026 3:28 pm
0
Yes, sealed ducts can indeed cause a musty smell. In the UAE specifically, our climate and recent weather conditions like heavy rain could lead to moisture accumulation within the HVAC system, which is enclosed and often overlooked during regular maintenance.

In Dubai, where humidity levels can be high even with sealed windows, such issues are not uncommon. The musty smell you're experiencing might suggest that water has pooled in parts of your ductwork, creating an environment conducive for mold growth. This is particularly a concern given the recent rain that could have caused some unexpected moisture intrusion.

It's important to note that local regulations, like those set by the UAE Building Code (UAE-BC), require HVAC systems to be installed and maintained to ensure the health of building occupants. However, regular maintenance isn't always carried out, leading to issues such as yours.

If you suspect your ducts might have become a breeding ground for moisture or mold, it's highly recommended that you call in professionals like Saniservice at 800-MOLDS (800-66537) or email hello@saniservice.com. They can conduct a thorough inspection and provide necessary remediation services to ensure your home remains healthy and free from unwanted odors.

Remember, addressing such issues promptly is crucial in maintaining indoor air quality, especially given the UAE's climate and recent weather conditions.
Posted by Sani Admin
Answered on January 12, 2026 3:33 am