Glass doors, as a rule, are interior doors. Due to different circumstances, it is not always possible to hire a professional, but the installation of doors does not require a lot of strength.
The first step is to dismantle the old door box. Remove the old plaster and sticking nails. Explicit gaps make a putty. If the wall is made of brick or concrete, then drill holes in advance for wooden plugs. With wooden wedges, build the door frame. Using the construction level, as well as considering the vertical and horizontal planes, adjust the location of the box. In two or three places, screw the vertical barns.The doors made of glass will look beautifully indoors, they will decorate any interior. Moreover, it is a durable and reliable product.