Acoustic or non acoustic access doors used for bathroom or kitchen HVAC piping repair at flats or apartments It provides access into jointless plaster or plasterboard wall where access to mechanical and electrical services is required for HVAC industry Doors are removable if damage occurs or during installation as the hinges can be screws off by driver Concealed budget lock on the rear of the door, operated from the front face with drive steel key and beaded frame can be plastered same as wall color after assembly that brings more uniform with the whole ceiling.