
Energy-efficient construction and refurbishment
Do you want to build sustainably or carry out energy-efficient refurbishment? We ensure that your construction project is efficient and future-ready.
Our energy efficiency experts will support you from the initial idea in the early planning phases through to the successful completion of your environmentally friendly and economical construction project. We analyse the energy requirements of your project or the energy balance of your existing building, identify potential savings and develop tailor-made solutions for thermal insulation, window design and the use of photovoltaics, solar thermal energy and other renewable energies.
By using state-of-the-art heating and ventilation technology, we not only ensure an optimal room climate, but also maximise efficiency. We also prepare the necessary energy certificates and ensure that all legal requirements are met.

Services in the field of energy efficiency
- Consultancy and creation of energy concepts
- Preparation of refurbishment roadmaps
- Funding advice and application
- Thermal insulation certificates
- Advice on photovoltaic systems/ solar thermal energy
- Ventilation concepts
- Hydraulic balancing
- Moisture protection calculation
- Component analyses / thermal bridge calculations
- Demand certificates/ consumption certificates
- GEG certificates
- Construction supervision
Contact Us!
With our integrated planning approach, we offer you holistic solutions as a Lead Designer Plus to sustainably reduce energy costs and increase the economic efficiency of your project. We also advise you on applying for subsidies and work with you to find the best grants for your building project. Focus on sustainability, increase the value and attractiveness of your property and make an active contribution to climate protection - the Julius Berger International team is at your side as a reliable partner!
