THE SASH WINDOW WORKSHOP
Timber Windows and Doors with a 50 Year Guarantee
Established in 1994, The Sash Window Workshop specialises in traditional timber windows and doors, combining timeless design with modern performance. Every product is bespoke, crafted to complement your home while improving energy efficiency and security.
Serving London and Southern England with expert installation – and offering supply-only nationwide – we’re proud to be a multi-award-winning, Which? Trusted Trader with a TrustPilot rating of Excellent – a testament to the quality of our products and the service we provide.
Ready to transform your home? Request a free, no-obligation quote today or call us on 01344 868668.
Beautifully Crafted Timber Windows and Doors
- Sash & casement window replacement – improving aesthetics and performance.
- Front doors and French doors – combining bespoke style and your home’s security.
- Secondary glazing – discreetly improving thermal and acoustic performance.
- Draught-proofing and timber window repairs – extending the life of your existing joinery.
- Precision crafted – combining technical innovation with skilled handcrafting.
- Fully factory-finished and expertly draught-sealed.
- Custom-made to suit your property’s architectural style.
- Designed to enhance kerb appeal, comfort, and energy efficiency.
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TESTIMONIALS
OUR TRADITIONAL TIMBER WINDOWS AND DOORS:
SASH WINDOWS
Our beautiful new wooden box sash windows and bay sash windows are manufactured at our workshops by our experienced team of tradesmen.
They are designed to improve energy efficiency while retaining the character and charm of your period home. Our sliding sash windows come with extensive guarantees. This includes a 50-year anti-rot guarantee for Accoya sash windows.
We offer an installation service across London and Southern England.
SASH WINDOWS
Our beautiful new wooden box sash windows and bay sash windows are manufactured at our workshops by our experienced team of tradesmen.
They are designed to improve energy efficiency while retaining the character and charm of your period home. Our sliding sash windows come with extensive guarantees, including a 50-year anti-rot guarantee for Accoya sash windows.
We offer an installation service across London and Southern England.
CASEMENT WINDOWS
We have extensive experience manufacturing and installing traditional timber casement windows in period properties.
Our high-quality replacement timber casement windows are designed to be energy efficient while retaining the traditional charm and character of your home.
We use Accoya wood for our casement windows, which comes with a 50-year anti-rot guarantee.
EXTERNAL TIMBER DOORS
We have extensive experience manufacturing and installing timber front doors, external French doors, stable doors, bi-fold doors, and sliding doors.
Designed to be in keeping with your home, our external wooden doors are all bespoke. If they are manufactured in Accoya, our preferred timber, they come with a 50-year anti-rot guarantee.
When required, we can exactly match the detail of any existing timber door.
EXTERNAL TIMBER DOORS
We have extensive experience manufacturing and installing timber front doors, external French doors, stable doors, bi-fold doors, and sliding doors.
Designed to be in keeping with your home, our external wooden doors are all bespoke. If they are manufactured in Accoya, our preferred timber, they come with a 50-year anti-rot guarantee.
When required, we can exactly match the detail of any existing timber door.
TESTIMONIALS
Find out about our great reputation
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WHY REPLACE WITH US
- Craftsmanship That Respects Your Home
Every window and door is handcrafted for you in our Berkshire workshop to match the original style using sustainably sourced timber and time-honoured techniques by our skilled joiners.
- Energy Efficiency Without Compromise
Our double-glazed timber units offer exceptional thermal performance, helping you stay warm in winter and cool in summer — all while reducing your energy bills and carbon footprint.
- Safety & Security, Beautifully Built In
From ground-floor sash locks to upper-floor egress systems, our discreet security features protect your family without compromising on aesthetics.
- Tailored to You
No two homes are the same. That’s why we offer a fully bespoke service — from initial survey to final installation — ensuring every detail is just right, just for you.
ACCREDITATIONS
