Bathroom Smell Mold
If your bathroom has an earthy smell, it is probably coming from rotting wood and there is likely to be bathroom mold present. Ants in the bathtub? Small ants in your bathroom or tub could be a sign you have hidden mold beneath your tiles or floorboards. Moist environments support mold and other life like ants.
The moldy smell in your drains comes from….you guessed it - mold! Mold and mildew form easily in damp, dark environments. That is why drainpipes are ideal places for the fungus to grow. Kitchen and bathroom sinks in particular have mold growth because of the food particles and hair particles that pass. The mold feeds off the debris.
The smell is confined to the bathroom. You can't smell it outside the bathroom at all, on any side (two sides are accessible, including the wall that the toilet is on), or below. The sink does not smell, nor is there any sign of mould anywhere near it. The bathroom does not have any windows and does not get much, if any, natural light.
Mildew Smell in Bathroom and Basement. The constant damp conditions in the bathroom, shower areas and basement provide the perfect environment for the growth of mildew. Mildew that is actively growing on damp surfaces produce odors, giving homes the "old house" musty smells. At some points it can be quite strong,
Mold and mildew are both a type of fungus that grow in damp areas. If a room is moist, not very well ventilated, and lacking in natural sunlight, there is a good chance it can develop mold or mildew. Both have a unique musty scent that is easy to identify, and both look like dark-colored stains where you find them.
How to Get Rid of Mildew Smell in Bathroom Step 1. Remove all decorations and rugs from your bathroom. Step 2. Mix a bleach solution according to the directions on the bottle of bleach. Step 3. Spray every surface with your bleach solution, including walls, mirrors, counters, shower, Step 4.