Business Details
32 Years
experience
Expert Timber Windows and Doors in Bracknell
Established in 1994, we specialise in traditional timber windows and doors, combining timeless design with modern performance. Our bespoke products are crafted to complement period and listed properties while enhancing energy efficiency and security. Using sustainably sourced Accoya timber with a 50-year anti-rot guarantee, we serve London and Southern England with expert installation and supply-only nationwide. As a Which? Trusted Trader with an Excellent Trustpilot rating, our team of 80 skilled professionals delivers precision-crafted solutions for conservation areas, listed buildings, and modern homes.We prioritise customer satisfaction through tailored consultations, minimal disruption during installation, and a commitment to preserving architectural integrity. Our services include draught-proofing, repairs, and replacements for sash, casement, and external doors, ensuring long-term value for homeowners and trade clients alike.
Services
Replacement Sash Windows
Casement Windows
External Timber Doors
Secondary Glazing
Timber Window Repairs
Supply-Only Joinery
Draught Proofing
New Sashes Installation
Conservation Area Solutions
Heritage Glazing
Details
- Year established: 1994
Highlights and features
- We have over 30 years of experience in traditional timber window and door manufacturing.
- Our bespoke designs ensure perfect architectural compatibility with period and listed buildings.
- We use Accoya timber with a 50-year anti-rot guarantee for exceptional durability.
- We offer both supply and installation services across the UK with minimal disruption.
- We are a Which? Trusted Trader with an Excellent Trustpilot rating from 1,000+ reviews.
Associations and certifications
- Which? Trusted Trader
- Trustpilot
- FENSA
- The Guild of Master Craftsmen
- British Woodworking Federation
- Made in Britain
- FSC
- Accoya-approved manufacturer
What people say
Fantastic service
Highest standards
Beautiful windows
Great fitters
Trusted trader
Services
Replacement Sash Windows
Our bespoke sash windows combine traditional joinery techniques with modern double-glazing for improved energy efficiency. Each unit is precision-engineered to match original architectural details while meeting current building regulations. The 50-year Accoya timber guarantee ensures long-term performance without compromising heritage aesthetics.
External Timber Doors
Crafted from sustainably sourced Accoya, our front and French doors balance security with period-appropriate design. Features include multi-point locking systems and optional heritage glazing, all manufactured to exact specifications for listed buildings and modern properties alike. Installation maintains structural integrity while enhancing thermal efficiency.
Timber Window Repairs
We extend window lifespan through draught-proofing, sash replacement, and minor repairs. This cost-effective solution preserves original joinery in conservation areas while improving thermal performance. Our specialists assess damage severity to recommend repairs or full replacements, minimising disruption during work.
Secondary Glazing
Discreet secondary glazing systems improve thermal and noise insulation without altering original windows. Ideal for listed buildings where double-glazing isn't permitted, these custom-fit solutions maintain visual authenticity while reducing energy bills and external noise intrusion by up to 70%.
Supply-Only Joinery
We manufacture high-quality timber windows and doors for trade customers nationwide. Products arrive fully finished with installation instructions, supporting projects from small renovations to large-scale developments. Our dedicated trade team ensures timely delivery while maintaining bespoke specifications and 50-year durability standards.
People
Richard Dollar
Managing Director
With over 30 years in the timber window industry, Richard founded The Sash Window Workshop in 1994. Under his leadership, the company grew from a small Berkshire operation to a 80-strong team serving heritage and modern properties nationwide.
Helen Barnes
Operations Manager
Helen oversees daily operations across manufacturing and installation teams, ensuring adherence to quality standards. Her 15 years of experience in joinery project management guarantees seamless execution from initial survey to final fitting of bespoke timber solutions.
Andrew Hemingway
Finance Director
Andrew manages financial strategy and sustainability initiatives. With a background in construction industry finance, he ensures competitive pricing models while maintaining premium product quality and 50-year guarantee commitments.
Questions
Do you work on listed buildings?
Yes, we specialise in heritage-compliant solutions for listed properties, including single-glazed and heritage double-glazing options that meet planning regulations.
What areas do you cover?
We install windows and doors across London and Southern England, with supply-only services available nationwide for trade and self-build customers.
What is Accoya timber?
Accoya is sustainably sourced, modified wood with a 50-year anti-rot guarantee. It offers exceptional durability, low maintenance, and dimensional stability compared to traditional timber.
Can you repair existing windows?
Yes, we offer draught-proofing, sash replacement, and minor repairs to extend window lifespan, particularly suitable for conservation areas where replacement isn't ideal.
Are your products energy efficient?
Our double-glazed units achieve U-values as low as 1.0W/m²K, significantly improving thermal efficiency while maintaining traditional aesthetics in period properties.
What guarantees apply?
We provide a 50-year anti-rot guarantee for Accoya products, with additional warranties covering draught-sealing, factory finishes, and installation workmanship.
Reviews (4)
David Bailey
Dec 06, 2021
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This was the third job that we've used The Sash Window Workshop for. A high quality product each time, fitted by professionals who are also nice people.
Michael McLean
Aug 05, 2021
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Fantastic experience overall; will be coming back to them for our final window, when we do the bathroom. The workmanship and material of the windows is excellent quality and look beautiful (we chose Accoya wooden frames). Their employees were easy and helpful to work with throughout the process, from design and survey, through to the installation process.
Installation went perfectly to the predicted schedule (3 days for 15 units across 4 rooms), even with one of the glass units having cracked during transport and having to be replaced mid-install.
Website is full of useful and clear infomation
Installation went perfectly to the predicted schedule (3 days for 15 units across 4 rooms), even with one of the glass units having cracked during transport and having to be replaced mid-install.
Website is full of useful and clear infomation
Elizabeth Laird
Jul 03, 2021
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Good work all through the job from the Sash Window Company, from the first visit by the surveyor to the fitting of the windows. A small adjustment was needed to a screw fitting and it was fixed immediately. Highly recommended.
Rose Gollop
Mar 19, 2021
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A very straightforward and professional process from start to finish. My initial phone enquiry led to a surveyors visit, where we discussed my requirements. I received to two quotations based on differing specifications. Having chosen the most suitable for my needs, the order was placed and the window frame was ready and installed in the time frame agreed. Installation was quick and straightforward, and the fitter tidied up afterwards and removed the old window frame. An excellent job.
