The core activity of A. Weder Bauunternehmung is the execution of construction projects in the fields of civil engineering, structural engineering, renovation and refurbishment of residential and ancillary buildings, including the construction of single-family and multi-family homes, extensions, excavation work, pipeline and sewer installation, surfacing work, forecourt, parking and retaining wall construction, as well as renovations and refurbishments of residential buildings and individual rooms.