Regular maintenance is required to ensure Fire Doors always operate to keep staff and clients safe, shutting and latching correctly ensuring a safe working environment.
The time between inspection will depend on the usage the doors get. Abacus recently attended an existing customer which was a specialist Residential Care home were some of the communal doors have heavy usage, being hit and damaged by wheelchairs and trollies regularly. So much so the doors did not close correctly. The hinges had worked loose which required the hinges to be refitted by drilling out screw holes plugging with wooden dowels, the Cold smoke intumescent seals had been damaged which required replacing. This was after a period of 2 years. I would recommended a regular inspection of doors in this instance at monthly intervals by staff, which would help to catch problems early on.
Door closers normally operate for years with little problems or maintenance, however as they get older, especially in high traffic areas then there are tell tale signs that they are coming to the end of their operational life. Tell tale signs include a small amount of oil leaking from it (usually dribbling down the back of the door or pooling on the floor, this will show as the door probably with start slamming shut as the hydraulic pressure is decreasing in the unit and not able to control the spring inside the unit. What also can cause the hydraulic seal to fail in the unit is if the door is forced shut by Staff and clients, this can throw the hydraulic pressure in the unit. Also, another sign is for it to be difficult to adjust on the adjustment screws that control the closing action. Normally at this stage the unit is not repairable and so it means a replacement unit.