• Wood assembly construction • Wood element construction • Joinery work • Interior construction and stair construction We provide our high level of expertise to architects, public authorities, private clients, industry and commerce, as well as general contractors. From our central location in Kreuzlingen, we supply and operate throughout the entire Eastern Switzerland region. We are a member of the Holzbau Schweiz association and the VSSM. As an exemplary employer with an employee-oriented corporate culture, we have also been awarded the Holzbau Plus quality label.

Kather Sanitär Heizung GmbH (Amriswil) delivers plumbing, heating and ventilation services across Switzerland. Since 2003, we support private, commercial and industrial projects—from single-family homes to large-scale builds. We handle planning, installation, upgrades, maintenance and fast troubleshooting. Our services include sanitary installations, bathroom renovations, modern heating systems (heat pumps, oil, gas, wood), underfloor heating, radiators, and ventilation solutions for residential and commercial properties, including heat recovery systems. Expect high-quality materials, efficient processes and personal service.