Casa Grande Hauswartung GmbH is a family-run company with many years of experience in professional property management. Founded in 2011 and taken over by the next generation in 2023, the company offers high-quality, reliable facility services, including cleaning, maintenance, and technical support, with certified expertise.

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.