Energy Saving... issue that effects us all

The Definitive Collection is also available with a wide range of glass options, including glass from renowned manufacturers Pilkingtons and Saint Gobain, which can increase the energy efficiency of your windows.


About 20% of heat is lost through poorly insulated window frames and single glazed windows, which not only is a burden on your heating costs but also on our planet, an issue which we take very seriously.

When you choose windows from The Definitive


Collection you can select a product with high energy efficiency, benefiting you not only from an energy saving cost point of view but also by helping to
protect and preserve our environment.



bsi-ratings-A bsi-ratings-C