Innovative PVCu extrusions
and creator of the Liniar brand


HL Plastics’ overriding philosophy as a business is to innovate. From improving existing products to gearing up for future developments that will shape the performance requirements of windows and doors – research, development and testing are at the heart of everything it does.

Using lead-free PVCu and creating the highest possible thermal efficiency without triple glazing, many Liniar designs are patented for customers’ protection.

The Liniar bi-folding door was the first bespoke PVCu door of its type; and continued development means it can provide the strength, security and stability of an aluminium bi-fold with the thermal benefits of a cost effective PVCu door.

The company has even invested in an in-house robot to test its products! See Mark II in action below and follow him on Twitter @liniar_robot