Thompson Door & Frame, Inc. is a recognized member of Intertek's Certified Machiners Program, allowing them to modify Intertek Certified Fire Doors and Frames as detailed within the applicable Intertek specification listings. Thompson Door & Frame, Inc.’s site, 1169 Sherborn Street, Suite 101, Corona CA 92879 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.
