Can you from any final exit quickly let everyone in the building know there is a fire? If not then you need a fire detection system/alarm. You will establish if you need a fire alarm from your risk assessment and we are always happy to come to your premises and talk through your fire alarm options.
According to BS5839-1:2017, your fire alarms should be serviced by a qualified technician at least every six months. It is your responsibility to routinely check the alarm system (this is usually once a week) and record the results in your log book.
