Crestline Systems offer two complete window suites.

REHAU tritec is an internally beaded sculptured sash window with machching beads all with low level concealed gaskets. Glazed with 28mm Low 'E' Sealed units.

Ultimate 'Rustique' is a fully sculptured window system, again with internally beaded low level concealed gaskets with matching beads. Glazed with 28mm Low 'E' Seaked units.

Both systems have high security locking systems with a choice of white, gold or chrome handles.

All frames are available in white, mahogany, light oak or rosewood. Woodgrain effects can be white to the inside of the frame.

The Ultimate collection is also available in a range of white, black or cream with an attractive timber effecy finish known as the 'Oakdale' range. This range is procing very popular where a customer requires hardwood frames but cost is a deciding factor when chosing between hardwood and PVCu frames.

The Ultimate collection is now also available with an Energy Rated Certification as shown above, which makes these frames one of the most energy saving on the market.

All frames are glazed as standard with the Low 'E' glass to conform to new Building Regulations and FENSA requirements and toughened glass is used on all doors and frames where required.