Before you start funding your upcoming renovation, you should first get an idea of your home’s current energy efficiency. To do so, you can request a cantonal building energy certificate (GEAK) (German website). In some cantons this certificate is a requirement to be able to apply for grants. The basic GEAK product is a four-page document that shows the energy class of the building envelope, the building technology and its direct CO2 emissions according to seven classes ranging from A to G. It is written by a certified expert. The fees charged by experts will vary depending on the complexity of the building to be analyzed. The GEAK Plus includes an advisory report which shows you two to three modernization options for your specific building.
Knowing which are the most energy-efficient measures to make your building more energy efficient and which are eligible for a subsidy is central for your planning. First find out what options are open to you and which energy-saving measures and subsidies could be appropriate for you.
The information and tools you require can be found online: Houzy, the platform for property owners, offers a variety of tools and calculators such as its free renovation planner. It shows you the most cost-effective way to renovate and where you can save energy. In addition to the estimated renovation costs and the calculated times at which the work should be carried out, it tells you which parts of the building you should tackle at the same time to renovate in the most cost-efficient way.