Which? Trusted Trader
4.8/5 Trustpilot Rating
TIMBER BI-FOLD DOORS SPECIALISTS
Traditional Style,
Modern Performance
Precision Crafted in Berkshire.
Our bespoke timber bi-fold and sliding doors merge craftsmanship with
effortless indoor-outdoor living – and come with a 50 year anti-rot guarantee.
Crafting Secure & Beautiful Timber Bi-fold and Sliding Doors.
Since 1994
With over 30 years of expertise, The Sash Window Workshop crafts and installs bespoke timber bi-fold and sliding doors across London and the South of England.
Perfect for both period and contemporary homes, our bi-fold and sliding doors combine precision craftsmanship with smooth functionality and exceptional thermal performance—creating a seamless connection between indoor elegance and outdoor living.
- Combining timeless elegance with modern security.
- Draught-proofed for year-round comfort.
- Sustainably crafted from Accoya™ timber.
- Fully compliant for Planning needs & Conservation areas.
Tell Us About Your Project
Simply complete the form and one of our expert surveyors will be in touch to answer your questions and guide you through the next steps.
CALL US
01344 868 668
EMAIL US
info@sashwindow.com
Why Choose Us?
The Standard in Wooden Bi-fold & Sliding Doors
50 Year Guarantee
Our Accoya™ timber comes with an industry-leading 50 year anti-rot guarantee, ensuring peace of mind for decades.
Award Winning
Proudly endorsed as a Which? Trusted Trader and celebrating over 30 years of excellence in British joinery.
Heritage Approved
Expertly made to meet any conservation area requirements whilst improving the energy efficiency and security of your home.
Peace of Mind, Guaranteed
We are so confident in the quality of our materials and craftsmanship that we offer some of the most comprehensive guarantees in the industry.
YEARS
Guarantee
YEARS
Guarantee
YEARS
Guarantee
10
YEARS
Guarantee
YEARS
Guarantee
*Maximum Guarantees Shown. Please see our Guarantee and Maintenance documents for further information.
Trusted by Homeowners
Rated Excellent on Trustpilot
Our Simple 3-Step Process
Free Consultation
We visit your property to discuss your needs and provide expert advice tailored to your home.
Bespoke Design
Every bi-fold door is precision-crafted in our Berkshire workshop to your exact specifications and home style.
Expert Installation
Our skilled, in-house team will install your new bi-fold doors with care, respect, and minimal disruption.
Can we help with anything else?
Casement Windows
Front Doors
French Doors
Sash Windows
Secondary Glazing
The Sash Window Workshop
Specialists in the manufacture and installation of traditional timber windows and doors. Restoring the architectural integrity of British homes for over three decades.
QUICK LINKS
CONTACT
Company No. 02897134 | VAT No. 480 1707 04 | Copyright © 2025 The Sash Window Workshop Trading Ltd.