FG Haustechnik GmbH specializes in heating, sanitary, and energy solutions, offering services such as bathroom and kitchen renovations, appliance replacements, water treatment, heating systems (including heat pumps and solar), ventilation for residential and industrial buildings, and comprehensive renovation and restoration projects. The company is known for expertise, quality, customer-oriented thinking, and absolute reliability.

Keller + Hofer AG is a trusted provider of heating and sanitary solutions. The company specializes in efficient heating systems, heat pumps, solar and wood-based technologies, as well as high-quality sanitary installations. Services include planning, installation, modernization, maintenance, repairs, and emergency support for new builds and renovations. The focus: reliable, sustainable building technology delivered with technical expertise, clean execution, and strong customer commitment.