sehr professionell und kundenorientiert. Roger Bolli hat die Erneuerung unserer Wärmepumpe super koordiniert und umgesetzt. Wir würden Bolli Heizungen jederzeit wieder engagieren. Kurt und Victoria Brändli, Malans

Professional facade and insulation solutions improve energy efficiency, protect buildings and enhance visual appearance. From facade renovation to thermal insulation and energy-efficient upgrades, modern systems reduce energy costs and increase property value. Benefit from durable materials and expert craftsmanship for residential and commercial buildings.

Öko-Haustechnik GmbH provides professional plumbing, heating and photovoltaic solutions across Eastern Switzerland and the Rhine Valley. With over 15 years of hands-on experience, the company supports new builds, renovations and modernisation projects from planning to installation. Services include sanitary installations, modern heating systems, heat pumps, underfloor heating and solar power systems. Clients benefit from reliable workmanship, clear communication and durable, energy-efficient solutions designed for long-term comfort and sustainability.

The VfA is an intercommunal waste management organization founded in 1960, based in Buchs SG. It operates central facilities for waste disposal, recycling, composting, and energy recovery, playing a key role in the circular economy by sorting, collecting, and reusing materials. Organic waste is composted, and thermal treatment generates electricity, district heating, and steam. The VfA is a modern energy company committed to disposal and recycling security.

Professional carpentry and timber construction services for renovation, blown-in insulation, interior finishing, conversions and restoration projects. Sustainable and ecological building methods for new constructions, extensions, parquet flooring, staircases and terrace decking. Expert support in wood protection, woodworm treatment, Isofloc insulation, project management and custom joinery for energy-efficient and durable buildings.