Should I worry about musty smell in bathroom?« Back to Previous Page

After the rain last month, I noticed a greenish-black stuff growing on the corners of the bathroom walls. It smells musty too, especially when it's humid in the evenings. The landlord hasn't said anything about it yet, but is this something I should be addressing or taking care of myself?
Posted by Antonio Torres
Asked on January 12, 2026 11:40 am
The musty smell and greenish-black growth that you've noticed in your bathroom walls could be indicative of mold. Mold is a common issue in Dubai due to the humid climate often brought on by seasonal rains or other moisture-related problems.

In the UAE, including Dubai, it's important to address such issues promptly. Mold can produce allergens which may cause health problems for people and pets with sensitivities. Furthermore, certain types of mold could potentially trigger respiratory infections, particularly in individuals who are already susceptible due to pre-existing conditions like asthma or allergies.

The greenish-black growth you described is typical of mold colonies, often found where moisture has accumulated over time. This type of fungus thrives on cellulose materials such as wood, paper, and fabric, which can be present in walls, ceiling tiles, and other building components. The musty odor typically associated with these fungi further confirms the presence of mold.

Given the specifics of your situation—namely the appearance of mold and its location in a bathroom—the likelihood is that there's been some degree of moisture ingress or condensation occurring. Bathrooms are naturally prone to high humidity due to daily activities like showering, so it’s crucial to ensure proper ventilation and drying processes after use.

However, for a definitive identification and accurate assessment of the extent and type of mold present, I would recommend engaging a professional inspection service. The UAE doesn't have specific federal regulations governing mold testing and remediation, but local standards and best practices should be followed. Ensuring that you are working with certified professionals who adhere to industry guidelines is key.

In the meantime, here are some practical steps you can take:
1. Improve ventilation by opening windows or using a dehumidifier.
2. Ensure proper drainage outside your home to prevent water from pooling near the foundation.
3. Clean visible mold growth using a solution of 1 cup bleach to one gallon of water (always test on an inconspicuous area first). Wear gloves and mask during cleaning.

Remember, if you find that mold has spread or if it seems to be growing rapidly despite your efforts, it’s time to contact the professionals at Saniservice. Their number is 800-MOLDS (800-66537) or you can email hello@saniservice.com for a prompt response.

Do not ignore this issue as mold can lead to serious health concerns and structural damage over time, especially in a climate like Dubai’s where humidity levels fluctuate significantly.
Posted by Sani Admin
Answered on January 15, 2026 1:23 am