Our CS68 aluminium window system is exactly what your customers are looking for – modern, energy-efficient and secure.

Energy Efficient

CS68 is a thermally improved three-chamber system for windows and doors that boasts the optimum combination of high insulation levels and safety to provide Uf-values from 1.8 W/m²K.

Most Popular

The CS68 Hidden Vent model is our most popular window system, offering attractive sight lines and enhanced security thanks to its Inward Opening design which ensures that only the exterior frame is visible from outside the building.

Impressive Performance

CS68 Hidden Vent is available with Tilt & Turn gearing with an impressive 1,600mm wide x 2,400mm high maximum vent size.  Double butt strips between the frame and vent and lowered drainage ensure superior wind and water tightness.

CS68 door outward opening 3d
Reynaers CS68 aluminium windows

Maximum Width (Hidden Vent Tilt & Turn)


Maximum Height (Hidden Vent Tilt & Turn)

Down to 1.57

U-Value (W/m2k)

CS68 Hidden Vent 3D Detail

Hidden Vent provides attractive sight lines and superior security


EPDM Rubber Seals


Triple Chamber for Superior Insulation

Technical Specifications
U ValueDown to 1.57W/m2k
Windows Energy Rating (WER)A
AirClass 4, 600pa
WaterClass E, 1200pa
WindClass AE, 2400pa
Document LCompliant

Get A Quote

Whether you have a current project in mind, or you’d just like to give pricing guidance to your customers, contact us for pricing and options today.

Eco System

Eco System is a high performance aluminium system that combines aesthetic design with energy efficiency.


Reynaers CS68 aluminium windows have everything that your customers want – at a price they’ll be happy to pay.


CS77 is the perfect solution to any glazing project – versatile, secure and high thermal insulation performance.


SL38 offers super-slim sightlines, 3 modern design options and excellent thermal performance.