Can a musty smell spread from an unused closet?« Back to Previous Page

After the heavy rain last month, I noticed a musty smell in my bedroom closet. It’s like an old book or damp basement odor that persists even after opening all the windows and using dehumidifiers. The closet is always dark and rarely used, but now it’s starting to spread to nearby rooms. Has anyone else experienced this and found a solution?
Posted by Patricia Johnson
Asked on February 26, 2026 6:06 pm
A musty smell can indeed spread from an unused closet, especially under the conditions you described. The presence of moisture and lack of ventilation create a perfect environment for mold growth and subsequent unpleasant odors. This scenario is quite common following heavy rainfall events as witnessed in your case. In Dubai/UAE, it's crucial to address such issues promptly due to the high humidity levels during certain months.

Firstly, inspect the closet thoroughly for signs of water damage or moisture accumulation. Check if there are any leaks around windows, doors, or pipes that might be contributing to the problem. Moisture sources should be identified and addressed immediately to prevent further mold growth.

Given the persistent nature of the smell even after using dehumidifiers, it is highly recommended to seek a professional inspection by calling 800-MOLDS or emailing hello@saniservice.com. Professionals can conduct a thorough assessment, identify any hidden moisture sources, and determine if there's active mold growth that needs remediation.

To prevent the spread of musty odors:
1. Ensure proper ventilation in the closet by installing exhaust fans if necessary.
2. Use dehumidifiers or air purifiers to keep humidity levels low.
3. Regularly clean the closet with mold-resistant cleaning products.
4. Keep the area dry and well-ventilated, opening windows when possible.

Additionally, consider sealing any gaps where moist air might enter from other parts of your home. This can be done using weatherstripping or caulking around door frames and windows.

If the problem persists despite these measures, it could indicate a more serious issue requiring attention from a professional. Regular maintenance checks on your building's envelope, such as the roof and walls, are also essential to prevent moisture intrusion.

In summary, addressing musty odors in unused closets requires a multi-faceted approach focusing on identifying and mitigating moisture sources, ensuring proper ventilation, and maintaining cleanliness. Should you need further assistance or professional services, don't hesitate to contact Saniservice for expert guidance and remediation.
Posted by Sani Admin
Answered on February 27, 2026 8:41 pm