Bespoke Victorian windows

Preserving the heritage of 19th century architecture is at the heart of every Victorian window we produce. Developed over four decades, we are industry leaders in creating handcrafted Victorian windows for listed homes. Using the finest quality FSC certified timber, as well as superior sustainable materials, we ensure our made to measure Victorian sash windows are tailored to match the original details of your period property.

Manufactured in Britain, we incorporate several energy efficient and security enhancing features to vastly improve the lifetime durability and thermal insulation of your Victorian style windows. Through manufacturing our own glazing units, our single and double glazed windows can be carefully installed into new or existing Victorian era window frames, whilst allowing us to apply our meticulous quality checks through every step of production.

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Our Victorian window core specifications

Rising in popularity during the Victorian era, sash windows were a popular feature of 19th century properties. Due to the development of larger glazing units compared with Georgian windows, this resulted in bigger individual glass panes, with fewer glazing bars. To ensure we are preserving these classic architectural features correctly, bespoke moulds are taken of your existing windows; this then allows for the sensitive reproduction of your Victorian windows, while staying faithful to the original designs.

Alongside personalisation options, our Victorian sash windows include several core features, for enhanced durability. These include:

Elegant, slim profiles, horns, and mouldings to match your existing Victorian windows

  • Full perimeter draught proofing
  • High security fasteners, locks, and restrictors
  • Specialist glazing options including:
    • acoustic glass
    • stained glass
    • laminated security glass
    • restoration glass
    • slimline double glazing

Our Victorian window installation partners

Throughout each stage of manufacturing your Victorian timber windows, we communicate regularly with your Local Planning Authority regarding any modifications that may incur to your property. Consultations begin when we receive your initial planning application, all the way to the completed installation of your Victorian windows.

Alongside your Local Planning Authority, Box Sash also works in partnership with FINEO Heritage. FINEO preserve the original charm of historic buildings and your property’s historical facades with heritage products. These provide reduction in noise levels, the opportunity for more light to enter your home and state of the art thermal comfort.

Offering six suitable glass types for glazing restoration, FINEO Heritage are the best solution for preserving Victorian glass installations.

Security and Guarantee

Each of our Victorian wooden windows allow for optimum security through multipoint secure locking mechanisms. In accordance with the Independent Warranty Association, Box Sash offers a 10-year glazing guarantee, and a 30 year warranty for all our bespoke timber frames, allowing you to feel as confident in your new Victorian windows as we are.

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    At The Original Box Sash Windows Company we have been manufacturing and installing beautiful hardwood windows for more than 40 years.

    We are unique in our industry in offering you a 30 year guarantee. That’s because we use the best timber, components and build them with such precision, we know they can last a lifetime.


    Our experienced estimators are available to survey your property and guide you through the many options that are available to you.

    Why choose the original box sash windows company?

    30 year guarantee on every frame

    10 year glazed unit guarantee

    Enhanced energy performance

    Sustainably sourced highest quality materials

    Tailored to the character details of your home

    Hand crafted double glazing as standard

    Secure multipoint locking mechanisms

    Superior quality & low maintenance

    Finished with high quality microporous paint


    We manufacture all our own glazing units to ensure maximum thermal insulation and acoustic properties, utilising double glazed safety glass as standard. In fact, we were the first to develop and patent double glazed sash windows.

    We can also tailor the glazing to your exact requirements – incorporating other glazing styles and specifications such as toughened and laminated glass, acoustic glass, and textured, obscured or stained glass.


    All of our traditional timber windows feature authentic mouldings that will perfectly complement your property. Our bespoke internal mouldings are created to match the original mouldings in your home, while outside detailing such as glazing bars and horns are matched to existing features.

    We can also finish our windows in your preferred colour. Just quote us your chosen paint and reference and we will make an exterior quality paint to match.


    For the perfect finishing touch, hardware, including handles and hinges, can be supplied in antique brass, chrome, satin chrome, black and pewter. Bespoke fittings can also be arranged on individual specification.

    30 year window frame guarantee

    Our industry-leading sash window frames come with a 30 year guarantee insured by the Independent Warranty Association (and all glazing units come with a 10-year guarantee). We want you to be as confident in your new windows as we are.

    Enhanced energy efficiency

    Your double-glazed sash windows will be flush-sealed and Argon-filled to maximise insulation and sound-proofing, so you can reduce your energy bills without compromising on authenticity.

    Individual details as you require

    If you want to finish your sash window in a certain colour, add some stained glass or even upgrade to curved glazing, we can accommodate your individual needs to match your home perfectly.

    For more information or to arrange a home visit for a quotation please contact us on 01753 858196 or email