Our standard interior passage doors.....

"Gienow" low e, argon-filled, dual-paned, double-glazed, low maintenance PVC windows throughout. Front elevation windows include decorative narrow white muntin bars (grills).

All opening windows are either awning-style or casement-style windows. Celtic does not use lower quality "slider" type windows! All opening windows also come with camlocks for additional security and a much better seal for an even more energy efficient window.

Photo above shows a "camlock"