SEARCH
Products
Products
The most up-to-date brand of uPVC profile on the market. With a focus on research, development and design, the Liniar range continues to push the boundaries when it comes to product innovation.
Menu
Find a supplier

Energy Saving Products

Choosing Liniar’s energy saving windows, doors and conservatories can help to reduce energy bills by reducing the transfer of heat.

Liniar thermal image Zero|90 casement window

Multi-chambered frames

Liniar's multi-chambered uPVC window and door frames are engineered using the latest technology, with symmetrical chambers that trap cold air inside. The internal webs and spacing of these chambers have been carefully fine-tuned with Therm software to achieve exceptional thermal performance. With a variety of different window systems available, Liniar windows and doors offer some of the highest energy ratings in the UK, with the 90mm Zero|90 system achieving Passivhaus certification.

Patented bubble gasket 

With Liniar's patented co-extruded bubble gasket included in each uPVC profile, or frame, the highest energy ratings are achievable. Designed from scratch, the Liniar bubble gasket outperforms all others in terms of both fabrication speed and air permeability - achieving zero air leakage during independent

testing. 

Bubble Gasket Close-up
Zero|90 house

Passivhaus certified windows

Since the launch of the 70mm window and door system in 2008, Liniar has pioneered the development of further enhanced energy-saving products. Its Zero|90 range is the first of its kind in the UK, with the 90mm casement window achieving U-values as low as 0.66 W/m²K using triple-glazing with standard Argon gas and both uPVC casement and tilt & turn window styles being certified by the Passivhaus Institute as energy saving components.

 

Find a supplier

Liniar designs and tests products, extrudes the PVCu profiles and delivers them to independent specialist manufacturers and resellers all over the UK. You can find your nearest with a simple postcode search.

Find a supplier

Contact us

It’s easy to get in touch with Liniar. Fill in a quick form and your enquiry will be directed to the correct department. Note our office hours are Monday-Friday, 8:30am to 5pm and we endeavour to respond within 24 hours.

Contact us