Production, delivery and installation of new window sashes and restoration of existing wooden frames. The building is under the protection of the Provincial Institute for the Protection of Cultural Monuments Petrovaradin. New window sashes made in everything based on the authentic profiling and decorative elements. All old opening mechanisms repaired and installed on new wings. Existing wooden elements that have been retained and have contact with the outside have been restored and painted with acrylic paints in the tone chosen by the Conservation Supervision.