The core activity of Willimann GmbH primarily encompasses services in the fields of carpentry and construction management. Specifically, the company offers the following services: * Carpentry work: repairs, maintenance work, renovations, contract work, interior finishing work, kitchens, doors and windows, glazing work, renovations, modifications to existing furniture, assembly of existing furniture, and custom-made furniture manufacturing. * Construction management: construction management for window renovations, conversion work, and renovations, conceptualization for conversions/reuse, consulting/second opinions, and troubleshooting for problems. * Contract work: 2D and 3D CAD drawing, experience in furniture making, shop fitting, and floor plan creation/modification, as well as model making. Overall, the company's focus is on providing services in the areas of timber construction, interior finishing, and construction management.