A lot of heat is lost through old and/or leaky windows. Is it worth replacing older windows with triple-glazed insulation ones?
With a terrace roof, a pergola, a garden pavilion or a sun awning you make more out of your garden. How much will it cost you?
Do you want to replace an old staircase or set strong accents with a new railing? We have researched how much that costs approximately.
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?
Building is generally prohibited in Switzerland. That's why you need a permit. Even for small building projects like a garden shed or a wall.
When you sell your house or flat, you want as much money as possible for it. What can you do to optimise the selling price?