Aluminium Casement Windows

Re-frame the look of your home – Our stylish and flexible aluminium window system

Casement windows are our bread and butter at FrameX.

Utilising Senior Architectural Systems Ali Vu range of aluminium casement windows, we’re able to offer super slimline and sleek windows, ideal for your clients’ projects.

They also include a polyamide thermal break, providing amazing thermal insulation, and improving your clients’ energy efficiency. Durable and versatile, they can fit into any commercial or residential building with ease.

Produced at the highest quality standards, our Ali Vu casement windows are contemporary, yet traditional – and with low lead times, you can meet the deadline of your next project.

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Available with a host of design options, the strong slim frame has a depth of 38mm (fixed light) or 66mm with a standard vent, available in sizes up to a maximum of 1400mm x 1400mm, to provide uninterrupted views. Ali VU casement windows can accept glazing up to 44mm thick with other thicknesses available upon request.

High-quality Ali Vu casement windows are ideal for domestic and large-scale residential projects, perfectly complemented and fully compatible with other products within Senior’s extensive product range.

Available in a range of RAL colours and finishes, our aluminium casement windows can be produced in a variety of different specifications.

Casement Windows

Available Configurations

Open Out Casement (Top hung or side hung)

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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