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A modern two-story house with white walls, dark roof, and stone accent features sleek aluminium casement windows. It is surrounded by a garden with greenery and purple flowers. The sky is blue with scattered clouds.

theVISION

Aluminium casement windows

Our slim framed, flush finished aluminium windows are custom made to suit your home, offering you an almost unlimited choice of contemporary style, opening and colour configurations.

Two white arrows pointing toward a vertical line in the center on a blue background, reminiscent of the sleek design of aluminium casement windows.

The pinnacle of modern design and performance

With slender frames and a flush finish theVISION stands as a true testament to cutting-edge window design, combining stylish aesthetics with unparalleled functionality. Featuring modern square-edged aluminium profiles, it offers a seamless and modern look, with the profiles sitting flush against the outer frames when closed. This creates a sleek, minimalist appearance that complements any architectural style.

A white thermometer icon on a blue background indicating thermal performance

Designed for superior performance and views

Engineered with a slim, thermally broken aluminium profile, theVISION maximises glass surface area, allowing for expansive views and lots of natural light. The thermal break technology ensures that the window provides excellent energy efficiency performance – with U-values from just 1.0Wm²K.

White Design icon on blue background

Versatile design

The versatility of theVISION window profile offers an impressive array of design possibilities, making it far more than just a standard casement window. Whether you’re seeking bold architectural statements or subtle enhancements, the window adapts beautifully to a range of room styles and opening sizes. Choose from ultra-contemporary frameless glass-to-glass corners, large fixed frame picture windows, Art Deco style heritage designs or large glazed gables for real statements of design.

A stylized illustration of three overlapping, transparent glass panels reminiscent of a single sliding door on a bright blue background, with two diagonal reflection lines on each pane.

Customisation options

theVISION window is available with either double or triple glazing to suit almost any project. It comes in a wide array of opening styles and configurations, ensuring a perfect fit for your home, whatever your plans. Choose from side-hung (with or without a popular flying mullion), top-hung or tilt and turn opening sashes and combine with fixed frames for larger window designs.

To learn more about our range of glazing options see our ‘How do I choose the right glass’ blog.

A white shield with a padlock icon on a blue background, symbolizing security, mirrors the robust protection offered by aluminium bifold doors.

Advanced security

Knowing that you are secure in your home is non-negotiable when choosing new windows and theVISION system is designed to provide complete peace of mind – whether you’re upgrading your existing windows, renovating a property, or designing a modern new home – without compromising on style.

A white checkmark inside a blue circle on a bright blue background, evoking the seamless motion of slide and turn doors.

Independently certified

theVISION window meets the highest security standards, holding the BSI Kitemark™ certificate and having passed the rigorous PAS 24:2022 independent security testing. These physical tests of the windows’ design demonstrate the strength and durability of the system, whilst theVISION also boasts the prestigious Secured by Design™ award, an accreditation given to products that meet the robust security requirements of the UK police’s official crime prevention initiative.

White folded map icon on a bright blue background, reminiscent of the sleek design found in aluminium casement windows.

Installed with precision, manufactured to last

By manufacturing theVISION exclusively in-house, we guarantee the attention to detail that sets our windows apart – just like our sliding, bifold and slide & turn doors. Each window is made by hand by our own fabricators and then expertly installed by our hugely experienced and fully-employed fitters – wherever you are in the country.

Gallery

Close-up of a modern window frame and sill featuring sleek black metal, reminiscent of aluminium casement windows, paired with a textured gray stone surface, set against vertical wooden paneling.
Modern kitchen featuring aluminium casement windows that flood the space with natural light, dark cabinets, a white island, and a wooden dining table with beige chairs. Skylights enhance the open feel while large windows offer serene views of the surrounding greenery.
An aluminium casement window with a gray frame is set against a wooden wall. The reflection captures buildings, plants, and a cloudy sky.
Modern patio with white brick walls, outdoor seating adorned with colorful cushions, and sleek aluminium casement windows beside sliding glass doors leading to an open-plan interior.
A modern living room features a large gray sectional sofa, orange accents, two armchairs, and a sleek coffee table. Aluminium casement windows frame the expansive greenery outside, seamlessly blending outdoor beauty with indoor comfort.
Modern kitchen featuring light wood cabinets, a large island with wire-frame stools, pendant lights, and built-in appliances. Aluminium casement windows allow natural light to flood the space, enhancing its sleek and airy ambiance.
Modern two-story house featuring aluminium casement windows, a spacious driveway, and a detached garage. Surrounded by a well-maintained lawn and trees. Evening lighting creates a serene ambiance.
Modern white kitchen featuring sleek aluminium casement windows, overlooking greenery. A potted plant and a red vase adorn the counter, with an oven and cabinets visible. The door to the left opens to a garden.
Exterior of a building with a slate roof, wooden siding, and two aluminium casement windows, one narrow and one large, reflecting greenery.
Modern two-story house featuring aluminium casement windows and a glass door extension, set against a backdrop of greenery and a wooden fence.
An aluminium casement window on a dark gray paneled wall reflects a cloudy sky and trees.
Close-up of a building corner featuring a brick wall and large aluminium casement windows framed in dark material, set against a clear sky.
An aluminium casement window features a sleek metal handle on a slightly open glass pane, with a blurred outdoor background.
An aluminium casement window with dark gray frames sits on a white stucco wall, overlooking a garden with trees and grass. Pebbles line the base of the wall.
Modern two-story house with a brick and white exterior, large aluminium casement windows, a garage, and potted plants along the paved entrance.
Modern white two-story house with large aluminium casement windows, a gray roof, and stone accents. It features a landscaped front yard with a small garden and greenery.
Close-up of a modern window frame and sill featuring sleek black metal, reminiscent of aluminium casement windows, paired with a textured gray stone surface, set against vertical wooden paneling.
Modern kitchen featuring aluminium casement windows that flood the space with natural light, dark cabinets, a white island, and a wooden dining table with beige chairs. Skylights enhance the open feel while large windows offer serene views of the surrounding greenery.
An aluminium casement window with a gray frame is set against a wooden wall. The reflection captures buildings, plants, and a cloudy sky.
Modern patio with white brick walls, outdoor seating adorned with colorful cushions, and sleek aluminium casement windows beside sliding glass doors leading to an open-plan interior.
A modern living room features a large gray sectional sofa, orange accents, two armchairs, and a sleek coffee table. Aluminium casement windows frame the expansive greenery outside, seamlessly blending outdoor beauty with indoor comfort.
Modern kitchen featuring light wood cabinets, a large island with wire-frame stools, pendant lights, and built-in appliances. Aluminium casement windows allow natural light to flood the space, enhancing its sleek and airy ambiance.
Modern two-story house featuring aluminium casement windows, a spacious driveway, and a detached garage. Surrounded by a well-maintained lawn and trees. Evening lighting creates a serene ambiance.
Modern white kitchen featuring sleek aluminium casement windows, overlooking greenery. A potted plant and a red vase adorn the counter, with an oven and cabinets visible. The door to the left opens to a garden.
Exterior of a building with a slate roof, wooden siding, and two aluminium casement windows, one narrow and one large, reflecting greenery.
Modern two-story house featuring aluminium casement windows and a glass door extension, set against a backdrop of greenery and a wooden fence.
An aluminium casement window on a dark gray paneled wall reflects a cloudy sky and trees.
Close-up of a building corner featuring a brick wall and large aluminium casement windows framed in dark material, set against a clear sky.
An aluminium casement window features a sleek metal handle on a slightly open glass pane, with a blurred outdoor background.
An aluminium casement window with dark gray frames sits on a white stucco wall, overlooking a garden with trees and grass. Pebbles line the base of the wall.
Modern two-story house with a brick and white exterior, large aluminium casement windows, a garage, and potted plants along the paved entrance.
Modern white two-story house with large aluminium casement windows, a gray roof, and stone accents. It features a landscaped front yard with a small garden and greenery.

Stylish handles for the perfect finishing touch

To complement their sleek design, theVISION windows are available with a stylish handle design for the perfect finishing touch. Available in a range of modern finishes, these handles not only enhance the overall look of the window but are designed with both aesthetics and durability in mind.

Manufactured from solid 316 marine-grade stainless steel, the contemporary lockable handles are engineered for long-lasting performance. The slender handle sits in-line with the frame, ensuring that it doesn’t obstruct the view out, while adding a subtle touch of elegance to the overall window design. This seamless integration with the frame reflects the careful attention to detail that defines every IDSystems product.

Our window handles are available in a variety of stylish finishes to suit your home:

  • Black – for a bold, contemporary look
  • Anthracite grey – to match the latest trends in modern glazing
  • Brushed stainless steel – for a sleek and timeless appeal
  • Brushed brass effect– for a touch of luxury and warmth

Brass effect window handle on an aluminium casement window with a black frame

Get a quote for theVISION windows

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    Our aluminium window products

    theVISION

    Slender framed aluminium windows

    theVISION aluminium window with two top-hung sashes

    theVISION

    Slender framed aluminium windows

    Thermal performance

    Thermal performance of the doors is measured as a U-value. When comparing products it is crucial to compare the overall U-value of the system and not just the U-value of the sealed glass unit.

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    Double glazed: from 1.4 W/m²K / Triple glazed: from 1.0 W/m²K.

    Profile shape

    The profile of our windows gives each type a unique look and feel. The square edged profile provides a stylish, contemporary appearance.

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    Outer: square edge. Inner: square edge

    Suitable for

    theVISION

    New/prepared openings or replacement windows within extension, renovation or new-build projects

    Configurations

    Our windows are available in many different configurations.

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    theVISION

    Casement (including top hung or side hung), tilt & turn, fixed frames, glass-to-glass corners and inline joints, gable end glazing and angled frames.

    Window energy rating

    Window energy ratings (WER) provide an indication of the efficiency of a window and are calculated on factors including the system's overall thermal efficiency, air leakage and solar gain. The WER for a window is dependent on the configuration, number of openings and the glass specification and as such is unique to each individual window.

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    Achieves 'A+' rating

    Severe weather rating

    Every set of doors and windows undergoes independent physical testing to assess the ability of the systems to withstand air and water. Water tightness is tested against BS EN 12208 standard, air permeability tested against BS EN 12207 standard and wind load tested to BS EN 12210.

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    Water tightness: 1200Pa (Class E). Air permeability: 600Pa (Class 4). Wind Load: 2400Pa (Class AE)

    Colour your life

    Our aluminium windows are available as standard in a choice of three polyester powder-coated finishes – Gun Metal Grey (DB 703) textured, Anthracite Grey (RAL 7016) matt or Jet Black (RAL 9005) matt.

    DB703 RAL 7016 and RAL 9005 colour swatches

    Alternatively the windows can be polyester powder coated to any stocked RAL colour (over 200 RAL colours) and even dual colour or textured finish. In addition, you can specify whether a matt, semi-gloss or full-gloss level of paint finish is required.

    A fan of RAL K7 Classic color swatches with various hues, elegantly marked with IDSystems branding on the cover, serves as a perfect companion for those selecting shades for bifold doors.

    Window styles

    Explore our wide range of window styles, designs and configurations to create the look that best suits your home - and ask our window experts how they can work with you to identify the most suitable products from our range.

    Casement windows

    Our casement windows can be designed in an almost infinite range and combination of opening configurations, fixed frames and vents. From standard designs to more detailed requirements, every window is custom made to suit your home.

    Illustration of an aluminium casement window with a blue pane, partially open within its sleek frame.

    Top hung

    Available either as a single, top hung sash within an opening or combined with a fixed frame or dummy sash for larger openings, our top hung windows feature concealed hinges within the side of the frame. When the window is opened, the top of the sash is pulled downwards away from the frame and the base of the sash pushes outwards.

    Illustration of an aluminium casement window with a black frame, slightly ajar, showcasing double-pane glass and a blue-tinted reflection.

    Side hung

    Designed with concealed hinges in the top and bottom of the frame, our side hung windows are a classic design and one of our most popular window styles.

    The window pivots outwards from the side when opened and can be utilised as a single opening window or as part of a larger configuration.

    Isometric illustration of an awning window tilted open, featuring blue-tinted glass and a dark gray aluminum frame, reminiscent of sleek aluminium casement windows.

    Tilt and turn

    A contemporary addition to our window range, inward opening tilt and turn windows offer the flexibility of being able to tilt the window open for part ventilation or completely open the window up to make the most of nice weather or to clean – making them perfect for non-ground floor use and locations with difficult access.

    Illustration of a rectangular picture frame featuring a sleek black border reminiscent of aluminium casement windows and a clear glass pane.

    Fixed frames

    Whether you are creating a single fixed frame as a picture window or incorporating a fixed frame within a casement window alongside top-hung, side-hung or tilt & turn sashes, they provide complete flexibility and are ideal for filling rooms full of light. Depending on the configuration you can even opt for dummy sashes to match openings.

    Featured Case Studies

    All Case Studies

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    Modern open-plan kitchen with a large island, hanging lights, and floor-to-ceiling windows offering a panoramic ocean view. Double glazed doors enhance the dining and living areas visible in the background.

    Amazing Cornish self build with open-corner sliding doors

    Designed by the brilliant Suzanne Brewer Architects, this stunning home perched on the cliffs above the Cornish coast enjoys amazing views out to sea thanks to the large open-corner set of IDSystems' sliding doors
    A modern brick house with sleek sliding aluminium doors opens onto a spacious tiled patio featuring outdoor seating and scattered greenery.

    Incredible open-plan kitchen extension project

    This stunning city centre 1930s home has been completely transformed with the completion of contemporary open-plan kitchen extension that is seamlessly connected to the patio and large garden by 3 sets of theEDGE2.0 ultra-slim sliding doors
    Two people sit at a table on a modern outdoor deck by a black house with large glass doors and striking corner windows, overlooking a scenic green landscape.

    New-build home with stunning views

    Set in a stunning location with views over the rolling countryside and valleys, Vila Mir is a contemporary new-build home that features large sliding doors and windows to maximise light and to breakdown the boundaries between the house and its surroundings.