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Why Choose Us?

The Double Glazing Network are proud to supply uPVC windows and doors made from the revolutionary Liniar profile system. When you choose a Double Glazing Network dealer, you will benefit from the following unrivalled advantages:


Liniar’s ground-breaking profile system has been designed from scratch, to not only meet the technical requirements of today, but to also provide innovative solutions to long standing product compromises.

Energy Efficiency

Liniar’s revolutionary multi-chambered profile technology is far more thermally effective than previous generation uPVC window systems. Our windows and doors are capable of achieving the very highest standards in energy efficiency.

British Engineering

Our British supply chain sees Liniar design and manufacture all their products from a corporate headquarters located in Denby, Derbyshire. This advanced, purpose-built facility houses the largest uPVC extrusion mixing plant in all of Europe.

Environmentally Friendly

Liniar profiles are manufactured using 100% lead free materials. The environmental dangers of lead are well known and providing a totally lead free range of products substantially minimises environmental impact.


Liniar profiles come with a 10 year manufacturer's guarantee against cracking, warping or discolouration from the date of installation. You can rest assured that Liniar products are fully covered and built to last.