22mm (4/14/4) 'Low E' double glazed units, manufactured to BS 5713 and factory fitted as standard.

4mm and 6mm single glazing is available on request, as are a wide range of glass types and specifications including obscure, safety and bronze anti-sun.

A fully drained and vented glazing system is used for improved performance and insulation and timber beads are fitted all round to simulate a traditional putty line.

Black or white glazing tapes are available to suit the particular window finish.