A solar system is worthwhile for the environment. Whether it pays off depends on at least six factors. We explain all the important factors.
Fake craftsmen charge a lot of money for botches or want to clean out houses. Be careful and only trust professionals from the region.
After 10 years, the first measures become due. The renovations become larger as the years go by. Plan early and put money aside.
Humans need the sun. But too much of it is harmful. That's why we present the most common sun protection solutions for indoors and outdoors.
Beat has inherited a detached house that is more than 50 years old and wants to insulate the attic. Our energy expert Max answers his questions.
If you want to knock down walls, replace worktops or change kitchen appliances, you should ask experts. What can you do yourself?
