Fuerte AG has 17 years of experience in property management and sales, as well as 24 years of experience in construction. Our services include heating and utility cost accounting, management of rental properties and condominiums. We offer new construction, conversion and energy-efficient renovations initial consultation, financing options, land price review, return calculations for sale for investor projects. Building valuations, preparation of valuation reports, architectural options, feasibility studies, status analyses, project design, building applications/permits, implementation planning, cost planning/calculations, construction management, acceptance and commissioning. We look forward to hearing from you.

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.

Holzbau Kühne offers timber construction, interior work, renovations and custom wood solutions. Family-run since 1958 with a strong focus on quality and sustainability.