Groupe FIVO installs, verifies, maintains and upgrades fire-resisting closures — hinged and sliding fire doors, fire curtains, fire dampers and special hatches — alongside smoke-extraction equipment including volets de désenfumage and DENFC. It holds the CNPP APSAD service certifications I16 for installing compartmentation devices and F16 for maintaining them, and states conformity of the equipment it supplies with CE marking, NF S 61-937 for DAS, and EN 16034, EN 12101-8 and EN 15650. It works nationwide through FIVO for new works, FIVO Services for verification and maintenance, and O.I.S. in the south-west.