In many homes, old windows are the biggest weak point of thermal insulation. Up to 25% of heating energy escapes through leaky or poorly insulated windows. Modern glazing can drastically reduce these losses.
How much can you really save?
Compared to old single glazing, modern triple glazing reduces heat loss per square metre by up to 70%. In a typical single-family home this means heating savings of €400–800 per year.
What to look for when buying
- • Uw value of the whole window – the lower, the better. Target: Uw ≤ 1.0 W/m²K
- • Gaskets: at least two surrounding sealing levels
- • Hardware with multiple locking points – also relevant for security
- • Warm edge: special spacers between the panes
Grants in the Euregio
In Belgium (Wallonia), Germany (BAFA, KfW) and the Netherlands, attractive grants are available for energy renovations. We will gladly advise you which programmes fit your project.