Hoefnagels works exclusively on fire compartmentation of buildings, manufacturing fire-resisting sliding doors, hinged doors, roller shutters and roller screens, and running a national inspection and maintenance service testing fire doors to EN 14637. Its Firelock fire shutter system is covered by KOMO attest SKGIKOB.018204.01.NL, issued by SKG-IKOB on 23 February 2026 for steel roller shutters, with further attesten SKG.0427.0233.10.NL, SKG.0427.7350.05.NL and SKG.0427.7351.05.NL. It is a signatory of the Brandveilig Bouwen Nederland code of conduct.