Contractors Door and Millwork, Inc. is a recognized member of Intertek's Certified Machiner Program, allowing them to modify Intertek Certified Fire Doors and Frames as detailed within the applicable Intertek specification listings. Contractors Door and Millwork, Inc.’s site at 3141 West Lewis, Phoenix, AZ 85009, is subject to routine inspections to verify that modifications to Intertek Certified Fire Doors and Frames are done in compliance with the requirements of the Intertek specification listings.