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timber window


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The Sash Window Workshop

The Sash Window Workshop is the premier manufacturer and installer of traditional timber windows and doors in London and the south of England. We also offer a supply only service for the rest of the UK.

Operating out of our factory in Berkshire, we offer a full window service, comprising draught sealing, double glazing of existing windows and the manufacture and installation of secondary double glazing, complete new sash windows, wooden casement windows, and timber doors.

We have over 20 years experience working on a variety of period properties, from homeowner's flats and houses, to larger projects for charities, public and private sector organisations. We can also work to listed building requirements.

We strive to provide all our customers with a high quality product and exceptional customer service and are proud to be a Which? Trusted Trader and have a 5 Star Trustpilot Rating.  We believe it is important to listen to our customers requirements and our highly experienced team of sales surveyors and installers will ensure that you are provided with the solution that meets your needs.

Contact us today for a free, no obligation site survey and quotation: 01344 868 668.

sash window company

Sash Windows

Our new box sash windows are manufactured at our workshop in Berkshire by our experienced team of tradesmen to high standards and comply to European manufacturing quality standard EN 14351.  They come with a comprehensive twenty year guarantee.

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casement window company

Casement Windows

The Sash Window Workshop has a wealth of experience in the manufacture and installation of timber casement windows, both traditional and more modern styles. Our replacement windows are designed to add charm and character and be in keeping with your home.

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timber door company

Timber Doors

Designed to be in keeping with the character of your home, our wooden doors are made to order by our craftsmen in our workshops to individual designs, agreed with you before manufacture. We can also exactly match the detail of any existing timber door if required.

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Sash Window Workshop Experience

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“Very pleased with the service.”
- Ms C, Oxfordshire (Mar 17)
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“We are really pleased with the new front door and have had lots of compliments from friends and neighbours. Our fitter was friendly, helpful, tidy and really efficient.”
- Ms B, Surrey (Mar 17)
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“Impressed with professional service.”
- Ms C, North London (April 17)
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“Excellent work, thank you!”
- Dr M, Kent (Mar 17)
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“Its been delightful dealing with your company. The work and cleanliness is exemplary and value for money.”
- Ms M, West London (Apr 17)
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“The installer worked hard to complete our work in the timescale we required due to our holiday. He was friendly, worked very tidily and cleared up all the mess, leaving the site clean. He was always on time and the work is very nicely done.”
- Mr P, West Sussex (Jul 16)


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