After extensive research Crystal Windows have designed and developed the most secure aluminium window and door system available today; "System 7".
"System 7" has several unique characteristics, rendering it superior to ordinary double glazing. The materials employed in manufacture, the profile, the glass, fixtures and fittings all have superior security properties.
A standard profile has a thickness of 4 cm, the "System 7" profile has a thickness of 7 cm extruded in a moulded fashion for maximum strength. This unique moulding of the profile gives it phenomenal strength; it is virtually impossible for would-be intruders to bend or force open in any way.
A standard glazed unit or door panel has an overall width of 18 mm. The "System 7" units have an overall width of 24mm; this not only adds security but also provides a superior thermal break.
Standard 3-point locks function by hook locks that drop into position. "System 7" windows and doors are fitted with geared-rotary locks which, due to their geared mechanism are much more secure.
"System 7" has several unique characteristics, rendering it superior to ordinary double glazing. The materials employed in manufacture, the profile, the glass, fixtures and fittings all have superior security properties.
A standard profile has a thickness of 4 cm, the "System 7" profile has a thickness of 7 cm extruded in a moulded fashion for maximum strength. This unique moulding of the profile gives it phenomenal strength; it is virtually impossible for would-be intruders to bend or force open in any way.
A standard glazed unit or door panel has an overall width of 18 mm. The "System 7" units have an overall width of 24mm; this not only adds security but also provides a superior thermal break.
Standard 3-point locks function by hook locks that drop into position. "System 7" windows and doors are fitted with geared-rotary locks which, due to their geared mechanism are much more secure.
