Flush Casement Windows

Flush casement windows are a modern twist on a standard casement window with glass panes that sit flush with the frame. Beyond looks, these windows are secure, durable and up to A++ rated for energy efficiency. Customise the glazing, configuration and colour and in your choice of wooden or uPVC frames.

Flush fit windows have a rich tradition, used across Britain for centuries. Create your perfect look with details like timber effect uPVC, traditional monkey tail handles, or lead effect glazing.

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  • Cream flush uPVC casement window and Duck Egg Blue composite front door from Anglian Home Improvements
    Cream uPVC flush window with duck egg blue composite door
  • Anthractite grey uPVC flush window
    Anthracite grey uPVC flush window in garden environment
  • White wooden flush windows top floor view
    White wooden flush windows top floor view
  • White flush window closeup
  • White wooden flush window kitchen interior in open position
    White wooden flush window in kitchen interior
  • Front of house view of flush uPVC casement window finished in Cream from the Anglian flush window range
    Cream uPVC flush window at front of house
  • Back of house view of flush wooden casement windows and back door finished in Cream from Anglian Home Improvements
    Cream wooden flush windows and cream back door
  • Close up of the interior of a White timber flush casement window from the Anglian wooden window range
    White wooden flush window interior close up

Flush casement windows open from top or side hung hinges, closing so that the face of the window sits flush with the frame. By comparison traditional casement windows have a lip that sits over the window frame when closed.

Explore our Flush Casement Window Materials

Reasons to Choose Flush Windows

  1. Excellent energy efficiency

    Save money on your energy bills with flush double-glazed windows that come A-rated as standard in wood, or up to A++ in triple glazed uPVC.

  2. Security you expect

    Flush casement windows deliver the security features you expect of modern replacement windows. These include shoot-bolt locks, key-locking handles and toughened glass.

  3. Conservation area friendly

    The design of a flush window meets the requirements for most conservation areas in the UK. Customise in colour, glazing, and design to ensure they fit the aesthetic of your home and its surroundings.

  4. Protection from the weather

    Our flush fit windows have durable weather seals to protect your home from the elements. Not only stopping the rain getting in, but stopping cold draughts too.

  5. Visually appealing

    Modern flush windows are elegant and stylish, combining the traditional with the contemporary. Elevate the visual impact of your home, and book a remote quote today.

Sage green window flush window with sage green front door

Working with the Best Industry Bodies to Install the Best Flush Casement Windows

  • BFRC logo


    The British Fenestration Rating Council (BFRC) verifies the energy performance of windows and doors in the UK. Installing BFRC rated energy-efficient windows will help save money on your energy bills.

  • bsienhancedsecurityofwindows2x

    BSI Kitemark

    The BSI Kitemark™ is one of the most recognised symbols of high quality products and safety standards. Anglian has 10 Kitemark accreditations, with six for windows alone.

  • FENSA logo


    The Fenestration Self-Assessment Scheme (FENSA) ensures replacement window and door installations comply with building regulations for England and Wales. You receive a FENSA certificate to keep as proof of compliance.

  • Glass and Glazing Federation logo


    Anglian is a leading member of the Glass and Glazing Federation (GGF). The GGF is the most influential Trade Federation in the industry, recognised by government for their in-house technical expertise, which helps influence key legislation within our sector.

  • Made in Britain logo

    Made in Britain

    The ‘Made in Britain’ marque on all our products means they are made from start to finish in a British factory by British craftspeople.

  • Recovinyl Plus logo

    Recovinyl Plus

    Recovinyl is an initiative advancing the sustainable development of the European PVC industry by improving production processes, minimise emissions, develop recycling technology and boost the collection and recycling of waste.

  • TrustMark

    TrustMark is a not-for-profit organisation operating a quality mark framework in the repair, maintenance and improvement sector. Registration with Trustmark demonstrates commitment to customer service, high standards and continual improvement.

Compare Flush Casement Window Energy Ratings

B energy rating
A energy rating
A+ energy rating
A++ energy rating
uPVC Flush
Wooden Flush

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10-year Guarantee

A 10-year parts and labour guarantee is included in your Anglian double glazing price.

Made in Britain

Made in Britain

Our products are made from start to finish in a British factory by skilled craftspeople.

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Price Match

If you find cheaper like for like uPVC windows elsewhere, we'll match the price.

Decide if Flush Casement Windows are Right for your Home

See what New Windows look like on your Home

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Design your doors and windows online

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  2. Colour
  3. Hardware
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Your Questions Answered by us

How much do flush casement windows cost?

How much a flush casement window costs depends whether you choose uPVC or wooden frames. The cost could also increase if you look at the higher A++ rated triple-glazing option. Our windows are made to measure for your home, so the best thing to do in order to get a cost is to book a remote quote.

Are flush windows or casement windows better?

For many, traditional casement windows have historically been the most popular style of window, which come in uPVC, wood and aluminium. However, Flush casement windows share many of the same attributes, and are an increasingly popular choice for homeowners looking for an alternative contemporary style.

Are flush windows energy-efficient?

Flush casement windows are a fantastic energy-efficient option. Our uPVC flush casement windows come A+ rated as standard and A rated in wooden. Customise your windows to improve their energy performance, and explore the benefits of upgrading to A++ rated triple glazed flush windows.

Should windows be flush with my house?

Windows do not need to be flush with your property. Many window styles stand out from the main fabric of a house, like bay windows. Flush windows can be found in historic buildings across Britain. Modern flush windows combine that history with style, energy efficiency and security to appeal to almost any home.

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Our Accreditations and Licenses

  • British Board of Agrement accreditation for uPVC windows from Anglian Home Improvements
    The British Board of Agrement provides certification on the quality of our products.
  • BFRC logo
    The British Fenestration Ratings Council is the UK’s national system for rating energy efficient windows.
  • bsienhancedsecurityofwindows2x
  • BSEN12608 Windows and Doors accreditation
  • FENSA logo
    The Fenestration Self-Assessment Scheme ensures window installers comply with buildings regulations in England & Wales.
  • Glass and Glazing Federation logo
    Anglian is a leading member of the Glass and Glazing Federation (GGF).
  • Made in Britain logo
    Certifies products made from start to finish in a British factory by British craftspeople.
  • Recovinyl Plus logo
    PVC Industry initiative to improve manufacturing, minimise emissions and develop recycling practices
  • TrustMark is a government endorsed not-for-profit organisation that operates through more than 30 scheme operators.