I used them for mold remediation as they were recommended by the accredited Mold Inspection company as one of the few that really understands and thoroughly complies with recognized and effective decontamination protocols. Mine was a complicated job because it involved 3 teams: Mold remediation (Dirty Ducts), Mold Inspector/Testing and HVAC and no separate access to the basement... and it had to be rescheduled at the last minute, due to the unseasonably hot temperature. I selected a new time period and Dirty Ducts immediately accommodated, answered all of my many questions which helped educate me in the process and circumstance, they respected my home about which I am fastidious and they coordinated seamlessly with the other two teams. The job was handled thoroughly, quickly and professionally. The post mold inspection indicated my home was much cleaner than most without mold issues. I will use them again for sure -- for routine maintenance. ;)