The core activity of A&S Holzbau GmbH encompasses the planning, execution, and management of wood construction projects, including: Carpentry: planning, construction, and renovation of wooden structures such as roof trusses, half-timbered houses, and garages; Joinery: construction and renovation of wooden furniture and wooden components; Roofing: construction, renovation, and repair of flat and pitched roofs, as well as terraces and underground garage roofs; Sheet metal work: manufacturing, installation, and repair of gutters, downspouts, metal roofs, and façade cladding; PV and solar systems: delivery, installation, and maintenance of systems for harnessing solar energy; Scaffolding and cranes: creation of temporary work platforms and movement of workers and materials during construction work. The company offers comprehensive wood construction services from a single source and focuses on the Winterthur region, the Zurich metropolitan area, the Weinland region, and Eastern Switzerland.