Bespoke Georgian Windows

As specialists in manufacturing sash windows for period, listed and conservation properties, our Georgian bar windows are handcrafted in the UK, to match the original character of your home. Offering single- and double-glazed options, along with a wide range of FSC certified timbers and hardware, we can ensure our wooden Georgian windows provide you with the best thermal and acoustic insulation.

As with the production of all our windows and doors, our Georgian style windows are manufactured with precision through time-honoured techniques and using sustainably sourced high-quality materials. This allows our timber Georgian windows to incorporate enhanced security features with lifetime durability, while still championing the period architecture of your home.

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Our Georgian window core specifications

At Box Sash, we are passionate about preserving the uniformity and classic, understated style of Georgian properties. We do this by using the finest materials and taking bespoke mouldings of your original windows. This allows us to create high-quality, exact-matching Georgian windows, which stay faithful to their original designs.

Along with this, our Georgian sash windows come with a full design, supply, and install service, as well as several standardised features. These include:

  • Full perimeter draught proofing
  • Full factory spray finish with high performance microporous paint
  • High quality and security hardware such as fasteners, locks, and restrictors
  • Specialist glazing options including:
    • acoustic glass
    • laminated security glass
    • restoration glass
    • slimline double glazing which looks like single glazing

Our Georgian window installation partners

During the process of handcrafting your wooden Georgian windows, we consult with your Local Planning Authority to ensure clear communication about your property modifications, from initial planning application to installation.

We also work in partnership with FINEO Heritage to preserve your historical facades. With its heritage products, FINEO provides state of the art thermal comfort, reduction in noise levels and allowing more light into your home, while preserving the original charm of historic buildings.

FINEO Heritage offers a choice of six suitable restoration glass types, and the best solution for preserving the visual appearance of glass, installed during the Georgian era.

Security and Guarantee

All our timber Georgian windows come with multipoint locking mechanisms for optimum security. We want you to feel as confident in your windows as we do, Box Sash provides a 30-year guarantee for your window frames, and 10-year glazing warranty, in accordance with the Independent Warranty Association.

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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?

    A 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