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Liniar Casement Windows

The Liniar range was created by bringing together some of the most knowledgeable and forward-thinking designers in the industry – with more than 500 years’ combined experience between them.

Casement Windows

Liniar casement window frames are made from lead-free PVC, which is extruded in Derbyshire at the HL Plastics extrusion plant. The factory boasts the largest PVC mixing plant in the UK and is one of the largest employers in the region. Continued investment in the factories keeps Liniar at the forefront of innovation.


Thermally Efficient

The revolutionary profiles used in Liniar casement windows are far more thermally efficient than traditional uPVC window profiles. By removing the unnecessary steel reinforcement, instead developing the latest in multi-chambered profile technology, we make sure the heat stays where it belongs – inside the home.

Cost Effective

The profiles used in Liniar casement windows deliver high energy savings for the homeowner at a cost-effective price. Liniar uPVC window systems are capable of achieving WER (Windows Energy Ratings) A+ 12 with cost effective double glazing – and a U-value as low as 0.8 W/m2k (with triple glazing).

Environmentally Friendly

In addition to saving energy costs for homeowners, Liniar casement window frames have always been 100% lead-free, well in advance of legislation – better for you and your family. Furthermore, all elements of Liniar uPVC casement windows are fully and easily recyclable at the end of their life.

Spoilt for Choice

Available in sculptured or chamfered 70mm profiles, with either 38mm or 36mm triple glazing, Liniar uPVC casement windows can be internally or externally beaded. Consumers can choose from Liniar’s standard 4 chamber profile, delivering supreme energy efficiency, or Liniar EnergyPlus 6-chamber profile to offer A+ Window Energy Ratings with ease – together with a wide choice of colours, finishes, hardware and glazing options.

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