Business Details
32 Years
experience
Timber Sash Windows & Doors in Bracknell
Established in 1994, The Sash Window Workshop has built a reputation as a leader in bespoke timber window and door manufacturing and installation. Our team combines traditional joinery techniques with modern performance standards, delivering products that enhance both the aesthetic and energy efficiency of period and contemporary properties. With over 30 years of experience, we specialise in crafting precision-engineered timber solutions using sustainably sourced Accoya wood, backed by a 50-year anti-rot guarantee. As a Which? Trusted Trader and Trustpilot-rated 'Excellent' business, we serve London and Southern England with expert installation while supplying nationwide. Our commitment to quality is reflected in our FENSA accreditation, Made in Britain membership, and FSC certification.We prioritise tailored solutions, ensuring every product complements the architectural integrity of our clients' homes. Our comprehensive services include draught-proofing, repair, and supply-only options, supported by a dedicated team of 80 professionals. With a focus on sustainability and customer satisfaction, we have completed projects for prestigious buildings including Buckingham Palace. Our process, from initial consultation to final installation, is designed to minimise disruption while maximising value, as evidenced by our 50% repeat customer rate. This enduring commitment to excellence has solidified our position as a trusted name in the timber window and door industry.
Services
Sash Windows
Casement Windows
Front Doors
French Doors
Bi-Fold Doors
Secondary Glazing
New Sashes
Draught Proofing
Details
- Year established: 1994
Highlights and features
- We have over 30 years of experience in timber window and door manufacturing.
- Our products use sustainably sourced Accoya timber with a 50-year anti-rot guarantee.
- We hold FENSA, FSC, and Made in Britain accreditations for quality assurance.
- Our bespoke designs maintain architectural integrity while improving energy efficiency.
- We offer nationwide supply with expert local installation across London and the South.
Associations and certifications
- FENSA
- Which? Trusted Trader
- Trustpilot
- Made in Britain
- FSC
- Accoya-approved manufacturer
What people say
Fantastic service
Highest standards
Extremely satisfied
Beautiful windows
Great fitters
Services
Sash Windows
Our wooden sash windows combine traditional design with modern energy efficiency. Manufactured in Berkshire using Accoya timber, they feature double glazing for thermal performance while maintaining period authenticity. Each window includes a 50-year anti-rot guarantee and is tailored to match original architectural styles.
Casement Windows
Traditional timber casement windows crafted for period properties. Designed to retain character while improving insulation, these windows use sustainably sourced Accoya wood with optional double glazing. Bespoke manufacturing ensures perfect fit for Georgian, Victorian, and Edwardian homes.
Front Doors
Custom-made timber front doors blending security with heritage aesthetics. Constructed from durable Accoya wood, they feature tailored designs to match original property styles. Includes matching secondary glazing options and comes with comprehensive guarantees against rot and warping.
Secondary Glazing
Discreet secondary glazing solutions for listed buildings. Handcrafted to fit existing windows without altering original features. Improves thermal efficiency and noise reduction while maintaining planning regulation compliance for conservation areas and historic properties.
Draught Proofing
Specialist draught-proofing service extending window lifespan. Involves precision sealing techniques to eliminate cold air infiltration while preserving timber integrity. Recommended for period properties seeking improved energy efficiency without full window replacement.
People
Richard Dollar
Managing Director
Founded in 1994, Richard Dollar leads with over 30 years in timber window craftsmanship, driving innovation and quality across the company's bespoke manufacturing and installation services.
Helen Barnes
Operations Manager
Helen Barnes oversees daily operations with 20+ years in construction project management, ensuring seamless delivery of high-quality timber window and door installations across London and the South.
Andrew Hemingway
Finance Director
Andrew Hemingway manages financial strategy with a decade of experience in construction industry finance, maintaining the company's strong fiscal position while supporting sustainable growth initiatives.
Questions
Do you provide windows for listed buildings?
Yes, we specialise in heritage-compliant solutions including single glazing and traditional detailing that meet planning regulations while maintaining thermal performance.
What guarantees do you offer?
All Accoya timber products come with a 50-year anti-rot guarantee. Installation work is covered by our comprehensive 10-year insurance-backed warranty.
Can you repair existing windows?
Yes, we offer draught-proofing, sash replacement, and full refurbishment services to extend the life of original timber windows while improving energy efficiency.
What areas do you cover?
We install directly in London and Southern England, with supply-only services available nationwide for trade customers and DIY enthusiasts.
Are your products energy efficient?
Our double-glazed units achieve U-values as low as 1.2W/m²K, significantly improving thermal performance while maintaining traditional aesthetics in period properties.
Reviews (4)
Richard
Sep 30, 2021
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I needed several windows replacing in my Victorian house. My neighbours recommended The Sash Window Workshop. From the first contact through to the completion of the installation, everything proceeded smoothly. Communication at every stage has been excellent and no problems arose. I realised at the start that there was a long lead time involved and in the end this was over 4 months, but it was definitely worth the wait.
The installation was carried out over 2 days and the remedial work to surrounding plasterwork has been minimal. I would have no hesitation recommending this company for the high quality of its products and excellent customer service.
The installation was carried out over 2 days and the remedial work to surrounding plasterwork has been minimal. I would have no hesitation recommending this company for the high quality of its products and excellent customer service.
Pat
Jun 15, 2021
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I got double glazed windows installed from the Sash Window Workshop about five years ago. I was so pleased with the company and the installation that I wanted to replace my front door. It took me another five years to finally get around to replacing the front door and I could only dimly remember their name. I Googled double glazed sash windows and I identified them by their logo. What I love about this company is that they do a very, very professional job and are great at communication. Having worked with a lot of builders in the past, I know you cannot take either of these for granted.
They respond to anything I ask immediately and are always very clear and prompt with telling me what is going to happen and when. I love the sash windows and the door looks great. I haven't lived through a winter yet with the door but am confident that it will make a great contribution towards reducing my energy bills - and it looks great! They aren't cheap but I have found that cheap means I have to re-do the job a few years later. It also saves on painting - I never have to paint the windows (wooden windows) and I know I won't have to paint the door. That's another saving in maintenance. I can't recommend them more highly.
They respond to anything I ask immediately and are always very clear and prompt with telling me what is going to happen and when. I love the sash windows and the door looks great. I haven't lived through a winter yet with the door but am confident that it will make a great contribution towards reducing my energy bills - and it looks great! They aren't cheap but I have found that cheap means I have to re-do the job a few years later. It also saves on painting - I never have to paint the windows (wooden windows) and I know I won't have to paint the door. That's another saving in maintenance. I can't recommend them more highly.
Sharon S.
Jun 14, 2018
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We had new double glazed sash windows to replace old badly fitted single glazed units in 5 windows and a set of timber French doors. The company were professional, clean and tidy, the quality of the work and materials are excellent. I couldn't be happier with the result.
Jecca
Oct 28, 2015
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Sash Window Workshop (and their sister company, London Window Painting Company) refurbished all our windows over a few weeks earlier this year. The office team managed the job very well, keeping us informed of everything, and the on-site team were really hard working and friendly people. This was particularly important as this kind of job (we found) rather takes over the house, so it was great to have such clarity and considerate behaviour.
We're very happy with the refurbished windows, and highly recommend the company. (Re. price: we had several quotations, and found SWW were about average price for a recommended company. Bluntly, windows are expensive, but we feel SWW are fully justified.)
We're very happy with the refurbished windows, and highly recommend the company. (Re. price: we had several quotations, and found SWW were about average price for a recommended company. Bluntly, windows are expensive, but we feel SWW are fully justified.)
