liniar

Liniar is a brand of PVC-u window and door profile systems manufactured by Liniar Ltd, a subsidiary of the Epwin Group in the United Kingdom. The Liniar system provides profiles used by fabricators to manufacture energy-efficient windows and doors. It emphasizes thermal performance through multi-chamber profiles that reduce heat transfer and support a range of glazing and hardware options.

Profiles are engineered to be easy to fabricate and install, with modular components and reinforcement options for higher load requirements. The systems are designed to accommodate common gasket profiles, glazing beads, and drainage routes, and are compatible with standard window and door hardware.

The Liniar product line covers a broad range of products, including casement and tilt-and-turn windows, French windows, sliding and bifold doors, and conservatories. Aimed at both new-build and replacement projects, the profiles are marketed to fabricators and installers through a network of approved partners and distributors. The company emphasizes sustainability, energy efficiency, and compliance with relevant building regulations across its markets.

Liniar has developed training and technical support programs for fabricators and provides design tools and tooling to support production. The brand is recognized within the UK window industry and exports to select international markets.