The installation of a door block is extremely simple provided you have taken the dimensions of the set with great precision.
The system consists of a steel frame and an armored and equipped door (lock, peephole, hinges, crutch...). No work of demolition, plastering or painting is to be expected... The operation boils down to removing the old door and its hardware and then fixing the new frame on the old one.
3. Singing dish
All brands offer customized door blocks and generally provide a fascicle before the order to facilitate the taking of dimensions that must be flawless. Raise the width at the bottom, middle and top of the door, the height against the vertical uprights (right and left), and the diagonals: the assembly must be well orthogonal. Also measure the amounts: rabbet, singing...
Remove the door and the old hardware store
To disassemble the old door, the easiest way is to use suction cups to lift the panel and carry it.
Unscrew the old hinges. No need to fill in the gaps since the new frame is superimposed on the old one.
Unscrew and remove all old locksmith elements: high and low strike, door closer...
Lay the new door
Unbolt the new door from its frame and position it.
It is superimposed on the old door frame.
Position the frame to the millimeter.
If necessary, slip wedges under the frame then check its plumb with the spirit level.
To fix it, drill through the frame into the wall thickness.
Use a wick adapted to the nature of the wall.
Drive the dowels to the hammer and then tighten the screws at the bottom of the lock side but not the hinges side to facilitate the next step.
Place the door on its hinges by getting help, then finish the screwing on the hinge side to guarantee the fixing.