Energy renovations are renovations that involve improving the energy efficiency of the building and/or adopting new, renewable energy sources in the building. Energy renovations are typically a combination of various measures.
For blocks of flats, energy renovations can mean the adoption of geothermal heating systems or the installation of a heat recovery system, for example. This kind of energy renovations can be carried out even between major renovations as they are often beneficial as is, and the dwelling can continue to be used as normal during an energy renovation.
In some cases waiting for the next major renovations can be a more cost-efficient option. Ideally, the planning of major renovations should always include a review of the possibility of improving the thermal insulation of windows, the roof and facades.