Fire fatalities statistics in Norway show an overrepresentation of people considered as belonging  to a vulnerable group. Public services are in contact with vulnerable groups through a range of services, including home care and nursing; support services and counselling; and municipal housing. This paper reports the results from a study of municipal practices for the prevention of fatal fire among vulnerable citizens in Norway. The study explores a socio-technical model for fire safety and how collaboration between municipal services might improve fire safety for vulnerable groups.