Heritage Sash Windows, Crafted with Precision
UK Sash Company manufactures premium timber sash windows and supplies modern sash alternatives for builders, architects, self-builders and homeowners across the UK.
Specialist manufacturers of timber sash windows built for heritage accuracy, modern performance and long-term reliability.
A Modern Approach to Traditional Craftmanship
Built on generations of British joinery expertise, UK Sash Company combines traditional sash window craftsmanship with a structured modern production system. Our focus is simple — manufacturing high-quality sash windows with consistency, precision and reliability.
Premium
Timber Windows
UPVC Sash Alternatives
Supply Only & Trade Friendly
Heritage Specialists
Reliable
Lead Times
Manufactured in the UK
Our Window Collections
Traditional bespoke timber sliding sash windows crafted for period and conservation properties.
.png)
A versatile high-performance sash window system suited to a wide range of homes and projects.
.png)
Our most advanced sash system engineered for larger openings, specialist glazing and enhanced thermal efficiency.
Trusted by Builders, Architects & Self Builders
Unlike many traditional sash window companies, UK Sash Company is structured to support trade supply, procurement projects and self-build developments efficiently and reliably.
Our production-led approach allows us to provide consistent manufacturing, predictable lead times and straightforward ordering for projects of all sizes.
Supply-Only Solutions
Trade and Procurement Friendly
Technical Support Available
Flexible Lead Times to Suit Your Project
Delivery or Collection Available
Consistent & Reliable Manufacturing Standards
How it Works
01
Send Your Sizes & Specifications
Provide your window sizes, drawings, specifications or project requirements, and our team will review the details and advise on the most suitable sash window solution for your project.
Drawings or schedules accepted
Timber & UPVC options available
Technical guidance available
02
Receive Your Quotation
We prepare a clear and detailed quotation tailored to your project requirements, including specifications, lead times and available options.
Clear itemised pricing
Trade-friendly quotations
Fast turnaround times
03
Precision Manufacturing
Once approved, your windows move into production through our structured workshop system, ensuring consistency, craftsmanship and quality throughout manufacture.
Dedicated production workflow
High-performance systems
Manufactured in the UK
04
Completion & Delivery
Your completed windows are carefully checked, prepared and made ready for collection or delivery to site at the agreed stage of your project.
Delivery or collection available
Flexible scheduling
Secure transport preparation
Why Choose UK Sash Company?
Heritage Expertise
Built on decades of timber joinery experience dating back to 1978.
Structured Manufacturing
A production-led workshop designed for consistency and reliability.
Trade Friendly
Built on decades of timber joinery experience dating back to 1978.
High-Performance Systems
A production-led workshop designed for consistency and reliability.