The core activity of Hugo Keiser AG encompasses the planning, implementation and maintenance of solutions in the field of building technology and renewable energies. This includes in particular: heating construction and renovations (heat pumps, wood/pellet heating systems, ground source heat pumps, oil and gas heating systems), sanitary work (bathrooms, water softening/demineralization, sanitary repairs, boiler service), and solar systems (photovoltaics, solar thermal systems, solar roof tiles, storage/battery systems). The company thus offers comprehensive solutions for building technology and renewable energies, positioning itself as a competent contact for overall solutions in the field of sustainable and economically viable energy generation.