Energy Ratings Explained


Current Part L Building Regulations require a U-Value of 1.8 W/m2k for replacement doors so with a U Value of U1.4 for Double Glazed and U1.0 For Triple Glazed, Warmcore is has far superior thermal efficiency over any standard Aluminium Door

Aspect Doors and Windows Ltd Windows Doo
Warmcore Windows and Doors.png
25% more efficient as standard
75% more efficient with Triple Glazing
more efficient