The core activity of BNS Sanitär GmbH encompasses the planning, installation, maintenance, and upkeep of sanitary, heating, and ventilation systems for renovation and new construction projects. This includes, in particular: sanitary work (e.g., renovation or redesign of bathrooms), heating work (e.g., installation of ecological heating and hot water systems), ventilation work (e.g., renovation of ventilation systems and installation of air conditioning systems), renovation and new construction projects, as well as planning and consulting for sanitary, heating, and ventilation systems.