The company etaE Concept Sàrl is an office for energy and environmental technology, specializing in the analysis, optimization and installation of energy and environmental systems. The core activities include: energy analysis and optimization, installation and maintenance of heating, ventilation, air conditioning and sanitary systems, environmental analysis, including electromagnetic sensitivity, noise, thermal discomfort, asbestos and radon, consulting and planning of energy and environmental projects for private individuals, SMEs and industrial companies, renovation and new construction of buildings with a focus on energy efficiency and environmental friendliness. The company also offers an emergency service for the maintenance and repair of energy and environmental systems.