Revolutionary new aluminium window and doors: Intelligent design born out of experience
Raising your expectations and improving your experience
A unique blend of vision, investment, experience and understanding is behind the launch of the Sheerline system
We aim to transform the experience of buying aluminium systems and windows from start to finish. Our technical experts looked at every aspect of aluminium windows and doors, from how they’re made and installed, how they perform and look, to the service and support you need and get. And we’ve redesigned everything so they’re easy to fabricate, order, install, and sell.
We’ve invested over £9m in a state-of-the-art factory to produce innovative residential aluminium window and door systems. The investment ensures quality is built into our foundations.
Roger Hartshorn and the team have an unrivalled record of success in windows and doors. We assembled the best technical brains and the best industry experience to develop and supply the most advanced aluminium products.
From aluminium logs to On-Time-In-Full supply in industry leading responsive time, we’ve integrated our manufacturing and logistics for seamless efficiency, high quality, and outstanding service.
Designed by a team with a proven track record
The industry’s leading experts have contributed a wealth of technical and operational expertise to Sheerline
The Sheerline system by Garnalex is a new venture from Roger Hartshorn, who has more than 40 years experience and successfully founded and sold two profile systems companies (Eurocell plc and Liniar). He has now turned his attention to aluminium and attracted a high-powered team of technical experts with decades of experience between them at companies such as HL Plastics, Synseal, Eurocell and Epwin. Together they are on a mission to re-invent aluminium windows and doors.
We've set out to create a simply better window
Our new aluminium windows and doors solve current issues, while adding value and advantages you’ve never dreamt of
While PVC-U and timber windows and doors have been transformed over the past 30 years, there’s been little investment or development in residential aluminium windows and doors. Analysing current problems and opportunities, we’ve built plenty of innovation into Sheerline to create a product with improved energy efficiency, easier and faster fabrication, and stunning looks for installers and homeowners.