Sustech, as an independent engineering firm for energy and building technology, offers all services from energy consulting to planning and monitoring. We support builders in residential areas as well as in administration, schools, nursing homes, gastronomy, industry, and more. Our primary goal is to optimize sustainability and comfort. • GEAK • Energy Consulting • Building Physics • HVAC Planning • Fossil-Free Heating • Photovoltaic Planning

Wherever you see AVIA in Central Switzerland, you'll find Schätzle energy within. We are a family-owned company from Lucerne, deeply rooted in Central Switzerland for over 150 years. We are the go-to partner in the region for fuels, heating oil, lubricants, and tank inspections. Thanks to our membership in the AVIA association, we are well-connected throughout Switzerland. We are close by and always where you need energy—fast, flexible, and reliable. We operate around 80 AVIA gas stations in Central Switzerland. Refueling can be conveniently combined with shopping in the AVIA shop. Our customers receive prompt, competent, and friendly service, which builds trust and fosters positive word-of-mouth. Customer proximity is a long-standing tradition at Schätzle.

Wir haben die Wärmepumpe mit einer PV Anlage kombiniert

Gruner All according to plan. Gruner is a leading engineering, design and planning consultancy in the construction industry. In the business areas buildings, infrastructure, and energy, we support our private and public clients in all project phases from strategic planning through construction to commissioning and management of buildings and infrastructure. In doing so, we combine services from a comprehensive range of competencies such as structural design, geotechnics, general planning, building services, energy production and distribution, road and rail construction, civil engineering, environment, safety, security, and spatial planning in order to offer optimal and sustainable solutions. With more than 1.100 highly qualified employees in over 30 offices in Switzerland, Germany, Austria, Serbia, Georgia, Turkey and Tajikistan, as well as at countless project locations worldwide, we are always close to the customer and where development and construction are taking place. Thanks to interdisciplinary cooperation, we set new standards in engineering methods and the application of digital processes. We are constantly evolving in step with our customers. Gruner is an independent family business headquartered in Basel/Switzerland and we are proud that we have been providing innovation and inspiration since 1862.