Innovative PVCu extrusions
and creator of the Liniar brand


Our mission is to be recognised as a leading force for quality and excellence in product development – fusing industry experience with innovation, sustainability and loyalty.

HL Plastics’ parent company Quanex along with its Senior Management Team is committed to sustained and comprehensive investment into several areas of the business, including product innovation and development, people, apprenticeships, machinery, tooling, methodology and sustainability.

One of the only PVCu systems companies with profitable growth annually for more than a decade – resulting in HL Plastics growing to over 500 employees.


Investment at HL Plastics extends beyond new product development, research and design. This investment initiative includes a comprehensive apprenticeship programme which provides opportunities to local youths while helping to close the skills gap in the construction industry; new, more energy efficient, top of the line machinery to deliver products with consistent excellent quality, and an in-depth environmental management programme allowing HL Plastics the ability to remain a zero operational wastage facility and provide products which are safe for the environment, sustainable and energy efficient for property owners.

Taking into account all avenues of true innovation, including thoughts, ideas, methods, practices and products; HL Plastics has a futureproof plan to ensure the company remains at the forefront of the industry.