Cleaning. After getting rid of mold-affected areas, mold removal professionals will spray the area using biocide to keep the mold from reproducing. Then, all non-porous surfaces are vacuumed and scrubbed to remove spores. Once this step is complete, the area should have no visible mold. Mold remediation means the removal, cleaning, sanitizing, demolition, or other treatment, including preventive activities, of mold or mold-contaminated matter that was not purposely grown at that location