Elevator constructors as well as specialist planners and operators have given the modernisation of landing doors a wide berth. The reason is the excessive time and material outlay, especially when it comes to replacing the existing frame and sill. When connecting work is carried out on existing wrap-around frames, stone or other door portals, as well as on existing floors, costs can arise that can barely be justified.
Read more in Lift Report 4/2020.
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