Aluminium French Windows

High in demand, aluminium flush windows are a popular choice for home renovations and even commercial projects.

Our beautiful French casement windows provide unobstructed views and open to a full 90 degree angle, offering wide and unrestricted space for your clients.

Similar to a hinged French door, a French casement window has two sashes that extend outward from the centre of the window to create a wide opening. With no central post in the window frame, French casement window panels crank open simultaneously for twice the ventilation and an unobstructed view.

Unlike casement windows, French casement contains a flying mullion which, when opened fully, creates an unrestricted view. The wider feeling of space that is created is perfect for enhancing the freshness and airiness of your next project.

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Our French Casement Aluminium Window option is a super slimline aluminium window with a polyamide thermal break giving impressive thermal efficiency. Available with a host of design options, the strong super slim frame has a depth of just 38mm (fixed light) or 66mm with a standard vent and is available in sizes up to a maximum of 1400mm x 1400mm, to give the widest views and maximise daylight in every room.

This product is ideal for both domestic and large-scale residential projects.

aluminium french window unit

Available Configurations

French Window, elegant design for wider openings.

Outstanding Performance

  • High-performance polyamide thermal barrier giving U-Values as low as 0.95 W/m2K when calculated as a domestic CEN Standard window
  • Further thermal enhancement is possible using 2 different backer rods, to achieve the required U values
  • Designed to achieve triple glazed A+ Window Energy Rating; double glazed A Window Energy Rating
  • Able to receive double or triple glazing up to 28 – 36mm on the radius and stepped vent and up to 28-44mm on fixed outer frame and flat faced vents for maximum thermal and acoustic performance
  • Fully security tested to PAS 24:2012 Enhanced Security
  • Weathertight and strong – tested to: BS6375 Part 1 Weather; BS6375 Part 2 Operation & Strength; BS6375 Part 3 Annex A

Product Details

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  • Sizes & Performance

    Typical* sizes

    Top Hung 1400mm x 1400mm
    Side Hung 950mm x 950mm


    Radius and stepped vent option 28mm – 36mm
    Outerframes and flat-faced option 28mm – 44mm

    Weather Rating
    BS6375 part 1

    Air Permeability 600Pa
    Air Permeability 600Pa
    Wind Resistance 1600Pa

    Tested to PAS24, BS6375-1, BS6375-2 and BS6375-3

    Average U values – 1230 x 1480 (Residential CEN standard)

    28mm Double Glazed Unit 1.5 W/m2K
    44mm Triple Glazed Unit 1.1 W/m2K

    Figures based on flat-faced vent option

    Window Energy Rating

    Double Glazed Unit Capable of achieving A rating
    Triple Glazed Unit Capable of achieving A+ rating
  • Important information
    • British Standards : BS 6375-1,BS 6375-2,
    • Certifications : PAS 24
    • Standards : ISO 14001,ISO 18001,ISO 9001
    • Typical Building Sector : Commercial,Dom
    • Finish(es) : Anodised,Polyester Powder C
    • Material : Aluminium
  • Colours

    Standard Colours
    Choose from two stock standard RAL colours or dual colour grey and white*

    Single and Dual Colours
    For single colour options, you can choose from a full range of standard RAL colours. You can even choose to have dual colour, with different colours on the exterior and interior surfaces.

    Signature Colours
    To help you decide on your perfect design our exclusive Signature Collection brings together the most popular and on-trend colours and powder-coated paint finishes. From classic neutral tones to more vibrant shades, our inspirational palette has something for everyone.



In-house fabrication & manufacturing

All of our aluminium products are fabricated and manufactured in-house.

This ensures we maintain high levels of quality and consistency with our products, so that nothing leaves our factory without the FrameX seal of approval (as well as passing all the appropriate safety standards).

Each and every product is designed to provide high performance for your commercial or domestic projects. Take a look at our fabrication and manufacturing capabilities below to find out more.

Find out more

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Need advice? Talk to our experts on 01706 587836

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