The core activity of Kaufmann Construction Bois is the execution of construction and renovation work, particularly in the field of timber construction. This includes: carpentry (roof trusses, roofing), timber frame construction, structural and energy-related renovations, installation of photovoltaic systems, Krinner screw foundations, staircase construction, roof windows, exterior facade cladding, and insulation. The company also offers technical studies and consulting services, such as energy calculations, static calculations, and planning of construction projects.