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.
Homeowners must pay tax on the imputed rental value as income. If you plan renovations sensibly, you can optimise your tax burden.
A solar system is worthwhile for the environment. Whether it pays off depends on at least six factors. We explain all the important factors.
Switzerland is banning more and more light bulbs that contain mercury. Now is the time to switch to energy-efficient LED lamps.
With ventilation you improve the indoor climate and living comfort. We present the two most important ventilation systems and their prices.
A lot of heat is lost through old and/or leaky windows. Is it worth replacing older windows with triple-glazed insulation ones?
