One of the leading UK composite door manufacturers & suppliers with over 30 years of expertise. One of Britain's largest ranges of GRP external composite front doors - Hallmark prides itself on quality doors, product innovation, and service excellence.

Fully Part L compliant, this versatile system is perfect for a wide range of both new build and refurbishment projects, including schools, colleges, hospitals, offices and public sector housing – as well as individual homes. Supreme flexibility makes it the ideal solution for almost any project.

Smart Alitherm Heritage is designed to replicate the elegant, slim sightlines of traditional steel windows, making it an ideal replacement for older steel frames, particularly for heritage projects, listed building renovations, or properties in conservation areas. 

Smart AluSpace is designed to divide interior residential and commercial spaces while creating a light and airy environment. The system is known for its slim, elegant, and industrial-style "steel look" design.

Visofold 6000 boasts very narrow aluminium frames, with sightlines as thin as 94mm where the doors meet. This maximizes the amount of natural light entering a space and provides a less-interrupted view when the doors are closed.

Liniar supplies multi-chambered PVCu profiles to a nationwide network of independent fabricators who then create made-to-measure windows and doors, including various styles like casement, French, and bi-folding doors.