The Duraflex 70mm Window System

The Duraflex multi-chambered range of profiles ensure the ( Diamond Suite ) will deliver a high energy rating and U-Values that you demand & require to keep your home warm. It has been carefully designed & manufactured to negate the need for reinforcing hence saving both fabrication time and reducing stock-holding, making the Diamond Suite the obvious choice for todays’ fabricator & installer. Duraflex profile has pre-inserted Q-Lon weather seals as standard. Regarded as the world’s best sealing gasket, with thanks to its high performance right across a wide temperature range, its thermal, acoustic and recovery properties, all of which are backed by a lifetime guarantee.

Advanced, Multi-Chamber Performance

The introduction of our advanced 5 chambered profile has further increased the thermal efficiency of the

Diamond Suite, allowing band A++ to be achieved and a U-Value as low as 0.8. All of the Diamond Suite

profiles are available in both Bevelled and Featured options, allowing both traditional and contemporary

styles and designs to be achieved. Together with our range of foils, these options give the consumer the

ultimate choice in aesthetics without compromising on performance.


Choice of 4 outer frame heights 46mm, 58mm, 68mm & 85mm

Choice of 3 transom widths 63mm, 72mm & 86mm

5 multi chamber outer frame & sash options

Outer Frame options are Featured & Bevelled ( bevelled only white available )

Fully welded construction

Rebated & flush sash options available

High performance Q-Lon weather seals

Signature white on a non lead Upvc profile

Featured Outer Frame there are 11 Grained foil finishes, White Foil, Cream,

Light Grey, Slate Grey, Anthracite Grey, Black Brown, Chartwell Green, Agate Grey ( painswick )

Irish Oak, Golden Oak & Rosewood, All available with white on the inside

Glazing options up to 44mm Triple Glazing

U-values to 0.8W/(m2k)

Yale Stainless Steel friction stay hinges 10 Year Guarantee BBA Approved

Choice of 3 Shoot Bolt systems ERA Extreme 1 & 3 Also Yale Rapide Locking all conforming to PAS 24

Push to open casement handles with choice of colours, non locking & monkey tail style also available