A recessed window and door system combining Metro strength, ThermalHEART® efficiency and the aesthetic appeal of a deeply set frame. This range is thermally broken and offers ‘passive house’ capability. Products include fixed, awning and casement windows, sliding, stacking and bi-folding windows and doors, and hinged and French doors. The Centrafix™ system uses Metro Series ThermalHEART® products within the context of a recessed frame.