10 - 12 weeks lead time on sash windows

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    Years in Business

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    Trust Pilot Rating


    Materials Ethically Sourced

    Who is

    Sash-windows.co.uk is a William Richards Group-owned and operated company. William Richards Sash Windows continues to thrive producing artisan, luxury timber windows and doors. The core of Sash Windows success is built around precision manufacturing using state-of-the-art automated machinery to ensure we retain high capacity, and low lead time production, without compromising our timber window and door’s premium quality. Our vast experience in the industry ranks us as one of the top sash window companies in the UK.
    Don’t believe us? Get in touch and find out why.

    The Sash Windows Process

    in touch

    Either give us a call, or fill in our contact form. We will try to get back to you as soon as we can to discuss your project.

    We can service your enquiry online or schedule a visit

    If you are happy with our recommendations for your project, we can either pencil you in for a site survey at a time and date to suit you, or we can email a guide on how to send over the information we need to produce a quotation online for you.


    Once we have the information that we need, we will go away and draw up our quotation for your sash window project. If you’re happy with our price and excited about the service we have proposed, we will process your order and advise you of the lead time.

    Sash Windows Projects

    • Name: Piero Soteriou
    • Location: Kings Cross – London
    • Cost: £12,600
    • Project Details: Tired of dated, aluminium windows, we revived the historical value of this commercial property with our Heritage Double Glazed Sash Windows. Our new sash windows have truly rejuvenated this building’s period charm.
    • Name: Michael Simon – Estate Manager
    • Location: Manchester Grammar School
    • Cost: £10,000
    • Project Details: The sash windows at MGS came from our factory, and William Richards, our sister company, regularly visits MGS to overhaul and repair them. We’re proud to have played our part towards helping to keep this incredible estate in prime condition.
    • Name: Sukhpreet Brom
    • Location: Jewellery Quarter – Birmingham
    • Cost: £21,000
    • Project Details: We had the pleasure of helping to transform this redundant factory into stunning accommodation in the heart of Birmingham’s Jewellery Quarter. Next to a pedestrian area and with a Grade II listing, we worked closely with the developer and listed building authority to supply premium, heritage sash windows with acoustic glazing.
    • Name: Deb Geary – Traditional Brick & Stone
    • Location: Rugeley
    • Cost: £55,375
    • Project Details: Traditional Brick & Stone did amazing work renovating this tired building into one of their superb office spaces. We were delighted to be able to help by supplying our Traditional range sash windows, casement windows and doors. What a transformation this project was!
    • Name: Stuart Morrison
    • Location: Fincheley – London
    • Cost: £17,000
    • Project Details: Stuart contacted us to improve the thermal efficiency of his home whilst preserving its period character. We had the perfect solution by supplying our Heritage range sash windows into the existing frames.
    • Name: Karen Price
    • Location: Leek
    • Cost: £7,000
    • Project Details: Karen wanted to upgrade her original cold sash windows, she also wanted to benefit from our factory spray finish whilst keeping the historical character of the house. She decided to go for complete new sashes and boxes for her single and bay sash windows, you wouldn’t tell they’re double glazed!

    Our Clients

    We’ve had the pleasure of supplying windows for some of the nicest homes and best companies in the UK.

    1,000’s of Happy
    Sash Windows Customers

    Simon Hampton

    We needed three sash windows replaced in our Georgian house and have been delighted with the units supplied by William Richards. All the staff were friendly, professional and capable and we will certainly use them again.

    Susan Jenkinson

    Ricardo and Paul were completely charming and very professional great ambassadors for an excellent company who have done a wonderful job - I highly recommend this company.

    Jon Bourne

    We have just had 7 sash windows refurbished in our home and would thoroughly recommend WRSW. From start to finish they were professional and completely trustworthy. The actual tradesman doing the work, Ryan, was a pleasure to deal with, expert at his job and treated our home with respect.

    Vicky Nash

    Just had 8 enormous Victorian sash windows replicated in Slim line double glazing by William Richards. Had 5 companies in (visiting 3 of their workshops) to discuss options & quote. Chose this small family business and so glad did in every respect.

    Have we answered all of your Sash Windows questions?

    Our dedicated customer relations team are eagerly awaiting your call and are ready to answer any questions you may have. We are a very busy team so If we don’t answer straight away be sure to leave a voicemail or send us an email and we will be in touch just as soon as possible.

    Crafting our
    sash windows

    Watch a few of our experts, Dale, Ryan, and Ricardo rejuvenate the period charm of this home in Cheshire, from hand picking the first plank of hardwood timber to the final checks to ensure we have carried out the perfect sash window creation.

    Types of Sash Windows

    What does our sash window expert say?

    The rise in energy prices in the UK is leading to more and more people looking for other ways to decrease their bills. Single-glazed, faulty or draughty windows and doors can be the biggest leak or cause of cold air in any household. Adding our new timber, double or vacuum-glazed sash windows, casement windows, and doors is one of the most effective ways to increase thermal performance, all whilst increasing the value of your home and enhancing its modern design or period charm.

    -Robin Partridge, CEO of Sash Windows

    Sash Window Styles

    Heritage Sash Windows

    We produce authentically period sash windows with optimal function and performance perfectly combined in our Heritage Range. The interior glazed hand-notched bar system is traditionally styled and benefits from leading double glazing or vacuum glazing, providing optimal thermal and acoustic regulation. Our Heritage sash window range can be seen in a wide variety of period homes, and where possible, we work with homeowners to use the existing frames. This range is also very popular with new builds and contemporary dwellings.

    Traditional Sash Windows

    Working closely with architects and planning authorities, we have spent a significant amount of time researching the importance of historical buildings and how we can sympathetically improve them. Historic England requires certain criteria to be met when replacing single glazing in listed buildings, therefore our Traditional sash window range has been created specifically for this reason. It enables us to restore the character and look of your property while improving the performance, security and durability.

    Vacuum Heritage Sash Windows

    Combining state of the art Vacuum Sealed Glass with the construction method of our Heritage range results in our sash windows exceeding the thermal and durability properties of triple glazing, all in a laminated glass unit only 8.8mm thick. Indistinguishable from single glazing, our Vacuum Heritage Range is perfect for replicating your properties’ period charm in conservation and historical buildings or ideal for ultra modern, sleek styles in new developments.

    Our Locations

    Our HQ is perfectly situated in Telford, in the heart of the Midlands and ideal for servicing our hubs in London and Manchester.

    Sash Windows
    Frequently Asked Questions

    • What are sash windows?

      Original sash windows of the 18th and 19th century can be found in many historic buildings providing interest and character to the elevations and demonstrating how past generations had the skills to produce extremely fine examples of carpentry. These windows should therefore be seen as part of an area’s architectural heritage and owners should be encouraged to repair or replace them. Many sash windows are situated within listed buildings and consent from local councils will normally be required to alter or replace them.

      Before the 16th century, only the most prestigious houses had glazed windows as glass was difficult to produce and therefore very expensive. During the 16th and 17th centuries, the use of crown glass became more widespread and the small panes or ‘quarries’ were set into lead and framed in wrought iron, often fixed into mullioned-and-transomed timber frames in the bigger houses or casements in the more vernacular. Sash windows first came into use in the late 17th century when the heavy glass was contained by thick oak frames and glazing bars.

      From the 18th century onwards, cylinder glass was produced which was thinner and available in larger pieces, and this allowed the production of the elegant, more lightweight sashes of the Georgian period. Often part of a formal, classically inspired elevation, sash windows provided a completely different appearance to the more mundane leaded casements of the previous centuries and quickly became highly fashionable. After about 1850 the introduction of plate glass allowed sash windows to be much larger with only one or maybe two panes of glass to each sash, so ‘horns’ had to be added to strengthen the junction of the meeting rail with the frame.

      Original sash windows consist of two glazed sashes, which slide vertically in a timber frame, supported by cords that are balanced with metal weights. ‘Yorkshire’ sashes, which can be seen in cottages and the more vernacular buildings, slide horizontally and without weights. Vertically-sliding sashes of the 18th and 19th centuries invariably were sub-divided into six, eight or sometimes more, panes of glass which were always slightly taller than they were wide, reflecting the proportion of the whole window.

    • Are sash windows hard to open?

      Your existing sash windows may be hard to open, but our sliding sash windows move seamlessly, making opening and closing easy peasy

    • Do you offer a guarantee on your sash windows?

      We offer a guarantee with all of our products. Feel free to give us a call to discuss further or check out our Trust Pilot reviews (link) to hear from some of our customers firsthand

    • Are sash windows draughty?

      Old sash windows may be draughty, but with our professional sash window replacement service, we ensure your sash windows are draught-proof. Our sister company, William Richards, provides a draught-proofing service for your existing windows.

    • Should I replace or repair my sash windows?

      That’s a tough one. Our Technical Engineers can provide you with the best advice. We’re always transparent with our customers and offer completely impartial advice

    • Do you supply sash windows to the trade?

      Certainly. We work with a lot of tradespeople and supply them with all of our joinery items. We also offer post-sale advice to make sure you’re using the best methods of installation

    • How expensive are sash windows?

      It depends! We know that;s a terrible answer. Our representative will be able to give you a ballpark figure after dicussing your project. We also offer finance on our sash window packages