Flush sash windows can be tailored to suit any property in Bedfordshire

Whether your window replacement project needs a heritage-inspired flush sash window with classic Georgian bar detailing or a sleek modern arrangement, our flush sash window products are guaranteed to deliver a better way of life no matter where they’re installed.

Perfect for properties that require chic equal sightlines, smooth operation, and optimal energy efficiency, flush sash windows are particularly popular as modern timber window replacements in traditional and contemporary-styled homes. Sophisticated, balanced, thermally-insulating, safe and secure, our flush sash windows enhance a variety of settings across Bedfordshire and beyond.

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Features & Benefits

The ideal addition to homes and businesses alike, our efficient flush sash window solutions are a worthwhile investment for a variety of reasons, including:

Excellent Thermal Performance

Our aluminium flush sash windows can reach low U-values of just 1.0 W/(m²K) & our uPVC window systems can achieve U-values as low as 0.8 W/(m²K) (A+).

Strong & Durable

Utilising secure locks & handles, our aluminium flush sashes are tested to PAS24 standards and our uPVC flush sash windows offer maximum security with minimal effort.

exterior shot of large white modern home

Slim Sightlines

Available in a wide range of configurations, our flush sash windows are crafted with slender sightlines for maximum light intake and a smooth continous finish.

Weatherproof Design

As the most elegant window style available, our flush sash windows are fully tested to withstand the harshest weather conditions.

close up exterior shot of brown casement window

Add a Splash of Colour

With a variety of standard, bespoke, and dual colour options to choose from, matching your new windows with the rest of your property is a breeze.

Styles & Resources

Explore our popular colours, finishes, and glazing options below & begin crafting dream property improvements today.

  • Colours
  • Glazing
  • Downloads
  • Colours

    Popular Colours & Finishes

    From classic white flush sash windows to sophisticated black sash windows, to more vibrant colour schemes, we offer the whole RAL colour chart, exclusive powder coating, metallic, textured, wood effect, and anodised finishes.

    White

    White

    Red

    Red

    Grey

    Grey

    Dark Blue

    Dark Blue

    Cream

    Cream

    Blue

    Blue

    Black

    Black

    Anthracite Grey

    Anthracite Grey

    Glazing

    Glazing Finishes

    As well as modern double and triple glazing, we also offer temperature-moderating Low-E glass and beautiful decorative glazing options for enhanced privacy and aesthetic value.

    Minster

    Minster

    Mayflower

    Mayflower

    Florielle

    Florielle

    Everglade

    Everglade

    Digital

    Digital

    Contora

    Contora

    Charcoal Sticks

    Charcoal Sticks

    Chantilly

    Chantilly

    Cassini

    Cassini

    Oak

    Oak

    Warwick

    Warwick

    Tribal

    Tribal

    Taffeta

    Taffeta

    Reeded

    Reeded

    Pelerine

    Pelerine

    Downloads

    Brochures & Downloads

    From energy efficiency to security to specialist flush sash window features, our comprehensive range of brochures provides all the answers you need.

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    ALUK Optio 58BW Flush Window

    This contemporary take on a classic window style provides a flawless flush finish, combined with:

    • Open-out sashes, including French casement, top, and side-hung arrangements
    • Low U-values of just 1.5 W/(m²K) for thermal insulation (triple glazed)
    • Slim 45mm sightlines
    • Tested to PAS24 standards
    • A worthy opponent to any timber or steel window system
    More ALUK Products

    Cortizo Flush Casement Windows

    Combining the sleek aesthetics of classic square timber windows with innovative modern aluminium, charming Cortizo casement windows give you:

    • Elegant maximum sash dimensions of 1800 (W) x 1800 (H) mm
    • Low U-values of just 1.0 W/(m²K) for thermal insulation (triple glazed)
    • Tested to PAS24 standards
    • Side hung and top hung opening possibilities
    • A symmetrical, flush-face design option
    More Cortizo Products

    Reynaers SlimLine 68 Flush Sash Windows

    Specifically designed to meet the needs of modern UK households, Reynaers stylish SL68 window designs offers:

    • Beautiful maximum sash dimensions of 1300 (W) x 1470 (H) mm
    • Low U-values of just 1.0 W/(m²K) / Window Energy Rating A++ for thermal insulation (triple glazed)
    • Tested to PAS24 standards
    • Side hung and top hung opening possibilities
    • A symmetrical, flush-face design option
    More Reynaers Products

    Frequently Asked Questions

    See all FAQs

    What areas do you cover?

    We cover the following areas:

    Bedford, Milton Keynes, St Neots, Peterborough, Cambridge, Rushden, Wellingborough, Luton, Harpenden, St Albans, Sandy, Biggleswade, Bicester, Buckingham, Stamford, Bedfordshire, Berkshire, Buckinghamshire, Cambridgeshire, Essex, Hertfordshire, Rutland, Norfolk, Northamptonshire, Nottinghamshire, Oxfordshire, Suffolk, Surrey and everything in between!

    Our Trade supply only services cover a larger area, so please feel free to contact us to discuss any requirements or any issues regarding the distance from our location.

    Do you offer no obligation quotations?

    Yes, all our quotations are completely free from any fees. Whether we visit your home or business or we meet in our showroom, each quote carries absolutely no obligations with it.

    Book your free no-obligation quotation appointment now.

    Do you manufacture your own products?

    With the exception of our entrance door and uPVC window products, we manufacture and fabricate a diverse range of aluminium bifold doors, sliding doors, and windows within our factory.

    What is a flush casement window?

    A flush casement window is a type of window where the opening sash is designed to fit flush with the outer frame when it is closed, creating a smooth and even surface. This means that the sash sits in line with the outer frame, rather than overlapping it like a traditional casement window. Flush casement windows can be made from a variety of materials, including wood, uPVC, and aluminium, and are often used in modern or contemporary homes. They can have a sleek and minimalist look and can be a great option for those looking for a clean and unobtrusive window design. They are also typically energy-efficient, as the flush design minimizes air leakage around the frame and sash.

    What is the difference between casement and flush windows?

    The main difference between casement and flush windows is in the way the opening sash sits within the frame. Casement windows have a protruding sash that swings outwards on hinges from the side of the window frame. This creates a visible lip or step where the sash overlaps the frame when the window is closed. Flush windows, on the other hand, have a sash that sits flush with the frame when closed. This creates a smooth and even surface, with no visible overlap or step.

    Are flush casement windows more secure?

    Flush casement windows can offer improved security compared to other window styles. Their design, where the sash sits flush with the frame when closed, reduces potential weak points and makes it harder for intruders to gain entry. Additionally, flush casement windows often feature multi-point locking systems and high-quality hardware, further enhancing their security measures.

    Hi-Finity modern stone home

    Window Showrooms in Bedford | Bay 3, 16 Murdoch Rd, MK41 7PD

    Allowing you to ‘try before you buy’, a visit to our local home improvement showroom will also resolve any queries that may be holding up the process of transforming your home or business. Housing a wide range of premium window products, our showroom also features an integral blind demonstration pod to get a real feel for this modern window covering solution.

    Your safety is our priority when you visit our showroom. So, during this time of low infection rates, we do not require you to wear a face mask. However, it’s your prerogative to continue wearing a mask, so please don’t hesitate to let us know if you would like us to reciprocate. If you’re happy, then we’re happy.

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    Testimonials

    Jason Quince

    Just had all my windows and french doors done. Clean and reliable. Great price. Would thoroughly recommend.

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    Maria Lapish

    Brilliant work, efficient, friendly clean working and they did an amazing job, I am so pleased with my final work. I cannot recommend them more highly. And they do not charge ridiculously high prices. Thank you Kevin and your team.

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    Holly Barlow

    We had our windows and front door completed by Bedford Bi-Folds. Allan came out originally to quote, he was very informative advising us of all options. We were kept up to date with when the install would take place. The install team were brilliant, friendly, efficient and left everywhere tidy. The windows and door look amazing, we are so pleased, thank you for such a brilliant service and end result. Would definitely recommend.

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    Rosa Speller

    A fabulous Rock door supplied and fitted by Bedford Bi-Fold, fitters being Alex and Archie did a first class job. We have had many compliments, and the door has excellent security features. We would highly recommend the door and Bedford Bi-Folds

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    Nathan Hulatt

    Thanks to all at Bedford Bi-Folds for a professional and pleasurable experience from start to finish with the installation of our Bi-Folds and window. Kev and Archire above and beyond expectations coming at 5pm to fit these. Will be using them again when our on going project picks up pace, would highly recommend using Bedford Bi- Folds if anyone is looking for doors, windows etc etc, Kev listened to what we wanted and produced exactly that.

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