The cost of energy renovations depends on the type or scope of the work. Often energy renovations can be carried out in a company charge-neutral manner, i.e. by funding the entire works with the resulting savings, which means that the company charge (yhtiövastike) does not need to be increased at any point due to the renovations. In other words, at best energy renovations can feel practically free, and will eventually start generating savings. Typically the payback period for a big energy renovation in a block of flats is 10 – 15 years. Smaller renovations have shorter payback periods.
In some cases energy renovations can also be funded with complementary building, for example. The funding options available are constantly growing more varied.