Frames Direct Internorm uPVC Windows

The freedom to design your own windows

Internorm windows are exactly right for new-build, older houses, renovated properties, and for low-energy and passive houses. As well as a wide choice of colours and finishes, there are so many other design possibilities.

WINDOWS

Energy-saving with Internorm

All glass surfaces in m²
Expected life of windows years
old glazing
 
 
Heat insulation value window
new Internorm window system
Heat insulation value window
Enter heat insulation values manually
Saving of heating oil per heating period   litres
Energy savings in years * Price per unit Total saving
 litres heating oil "extra light" GBP / litres GBP
 m³ gas GBP / m³ GBP
 kg pellets GBP / kg GBP
 cubic capacity split logs GBP / cubic capacity GBP
Environmental relief in years (heating oil "extra light")  kg CO2  kg SO2  kg NO2
* please replace the price examplar with the corresponding regional prices per unit