House roofs last for about 50 years. But sometimes they need to be renovated sooner. We have researched the costs of a new roof for you.
With our new checklist, you can plan individual energy measures or complete renovations step by step and think of everything that is important.
A solar power system is ecologically and economically worthwhile. We have summarised the 7 steps from the initial idea to installation for you.
A power or battery storage device stores solar power that you do not use immediately and makes it available later. Does the investment pay off?
