William S. Trimble Co., 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. William S. Trimble Co., Inc.’s site, 2200 Atchley St. SW, Knoxville, TN 37920 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.
