Why do unpleasant odors rise from the floor and how to eliminate them? Common causes and solutions

Many residents complain about strange, unpleasant odors coming from the floor or baseboards. Such odors can be episodic, but more often they signal that certain processes are taking place in the room related to moisture, bacteria, mold, or even pests.
To effectively eliminate the problem, it is necessary to accurately understand its origin.

The most common causes of unpleasant odors:

1. Moisture and mold in floor structures

If moisture accumulates under the floor, it creates favorable conditions for mold and bacteria to grow. The smell is usually pungent, sour, or similar to the smell of earth.

2. Old or damaged sewer connections

If the sewage system is leaking, odors can rise through the floor structures, especially in bathroom or kitchen areas.

3. Remains of fallen rodents or insects

There may be dead mice, rats, or cockroaches under the floor or in the baseboards. Their decomposition process releases a very unpleasant, sweet-sour odor.

4. Urine odor (usually rodents)

Mice often mark their territory. If they live under the floor, the smell will be strong and long-lasting.

5. Inaccurate repairs

For example, floor glue or varnish can emit a chemical odor that lingers for months.

How to identify the source of the problem?

  • Pay attention to where the smell is strongest .

  • Check for signs of moisture : swollen baseboards, dark spots.

  • Assess whether you hear any creaking sounds - this may indicate rodents.

  • Check if the smell gets worse after rain – this could be moisture infiltration.

  • Check to see if the baseboards are loose - insects or mold may be hiding under them.

How to remove odor effectively?

  1. Eliminate the source of the odor – mice, mold, moisture, or a sewage problem.

  2. Perform deep disinfection using professional tools.

  3. Clean the baseboard cavities and replace damaged structures.

  4. Using ozonation or fog disinfection is effective for neutralizing bad odors.

  5. Contact Dezis.lt if the smell persists for more than a few days or if biological contamination is suspected.

How can Dezis.lt help?

Dezis.lt specialists:

  • determines the exact source of the odor,

  • uses certified odor neutralizers,

  • performs ozonation and cold fog disinfection,

  • removes bacteria, mold and pest residues,

  • provides recommendations on humidity and ventilation.

Professional intervention prevents recurrence and ensures long-term results.

Conclusion

Floor odors are not just an aesthetic inconvenience. They often signal a more serious problem that needs to be addressed as soon as possible.
Dezis.lt offers effective, safe and proven solutions that help restore a clean and healthy home environment.
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