Anderson Lock supplies, installs and services commercial doors, frames and architectural hardware across the Chicago metropolitan area, and runs a dedicated fire door inspection service. Three certified Fire Door Assembly Inspectors carry out the annual NFPA 80 inspections required of fire-rated assemblies, working to a thirteen-point checklist covering labels, clearances, glazing, self-closing devices, latching and gasketing. A written record is supplied for the building owner’s file. The firm operates a separate door division facility at Elk Grove Village.