Because basements are prone to cool, damp conditions, it is also prone to the growth of mold. In many cases, specifically in finished basements, moisture condenses between the finished wall and the foundation of the home due to lack of air flow and the presence of dark and damp conditions. In fact, this is the perfect habitat for mold to grow, where the materials used to build the interior walls provides the food source for growth. Most likely there is a musty odor that is present in the air also.

Basements that are not finished can also harbor mold. Many of the same factors contribute to its presence: moisture, dampness, lack of airflow and lack of heat are all factors. Simply installing a dehumidifier and adding heat will not solve a problem if mold already exists – and it won’t stop mold from spreading unless you have it treated by a professional.