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About Us

Established in 1994, The Sash Window Workshop specialises in the manufacturing, installation and draught proofing of traditional timber windows and doors for period properties in London and the south of England. We also offer a supply only service for new joinery nationwide. Operating out of our factories in Berkshire, we can manufacture and install new sashes into existing frames (replacing just the moving parts), complete new sash windows, casement windows, French doors, Front doors, Sliding doors and Bi-fold doors. We also offer a secondary glazing service and a draught sealing and overhaul service. Our bespoke replacement windows and doors are manufactured and installed to be energy efficient, while also being in keeping with the architectural style of the building. All our work comes with extensive guarantees, including a 50-year anti-rot guarantee for new windows and doors made in Accoya. We strive to provide all our customers with a high-quality product and exceptional customer service, reflected by our 'Excellent' Trustpilot rating and having won Which? Trader of the Month Award multiple times. Our highly experienced team of sales surveyors and installers will listen to you to ensure that you are provided with the solution that meets your needs.

Services Provided

Bifold Window Installation, Double Glazing, Draught Proofing, Made to Measure Windows, Window Installation, Window Replacement, Windows, Window Sales, Window Manufacturing, Timber Windows, External Doors, Wooden Doors

Areas Served

Bracknell, London, Reading, Windsor, Guildford, Chelmsford, Brighton, Hove, St Albans, Harpenden, Worthing, Lewes, Bromley, Beckenham, Cambridge, Brentwood, Bishops Stortford, Witham, Colchester, Caterham, Canterbury, Wallingford, Warlingham, Gravesend, Dartford, Bexley, Barnet, Waltham Abbey, Wilmington, Honiton, Cheltenham, Farnham, Aldershot, Farnborough, Camberley, Lightwater, Bagshot, Windlesham, Woking, Chobham, Virginia Water, Petersfield, Sandhurst, Bramley, Fleet, Godalming, Harrow (N, W and S), Northwood, Maidenhead, Oxford


Which? Trader of the Month Award Winner November 2021 and March 2023. FSC Certified, FENSA registered, Which Trusted Trader, Guild of Master Craftsmen, Safe Contractor Approved, British Woodworking Federation, Quality Assured National Warranties, CENSOLUTIONS, Made in Britain.

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Business Details

Business Name

The Sash Window Workshop

Phone Number

01344 868668


Bracknell, Berkshire RG12 1NA
United Kingdom

Typical Job Cost

£400 - £200,000

From draught proofing a window to replacing all the windows and doors as part of a large renovation project.


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United Kingdom
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