Liniar windows

Britannic Trade Frames are proud to offer Liniar windows, a profile from the successful plastic company "HL Plastics". Launched in March 2008, Liniar is an innovative window system from HL Plastics. Although Liniar is a fairly new window system, there Managing Director Roger Hartshorn has been highly influential in the industry for many years having founded another leading brand and grown it to become one of the leading window systems companies. He has assembled a team of highly experienced specialists at Liniar to develop and supply an innovative window system

Liniar windows features and benefits

High gloss, lead free materials used in the manufacture of all frames & ancillary products.

Designed specifically as a pre-gasketted system, featuring a patented double action bubble gasket on all frames. No corner cleaning of the gasket or inner rebate required.

Choice of chamfered & sculptured systems available, fully inter-changeable.

Our single leg beading has a simple ‘knock-in’ design that is fitter friendly and will make glazing on site quick, easy and more positive. The single leg bead provides a performance to BS7950 Security enhancement standards.

Symmetrical drainage for rebate & bead areas on all profiles.

Snap together feature on 165mm cill, outer frames, low thresholds, frame extensions & 90° corner post.

Available in white, rosewood & oak finishes along with foiled on white options.

Liniar window profile


Download the profile chart


Why choose our Liniar windows

Liniar PVCu windows are the most technically advanced in the market. Designed from scratch to meet the highest possible energy rating standards (WER ‘A’ rated), they are completely lead-free and fully recyclable.

Not only that, Liniar windows are amongst the most secure that money can buy.  Fully accredited to meet appropriate standards, including the police-backed Secured By Design programme, the Liniar range assures the safety of your home.

With a choice of styles and a huge range of colours available, including standard White, Cream, Rosewood, Light-Oak and Irish Oak. along with a range of bespoke colours including Grey, Black and Chartwell Green, there’s a Liniar window to suit every building – from traditional farmhouse to contemporary loft as well as commercial and new build. 

Liniar profile

Liniar Casement Windows

Liniar Flush Windows

Liniar French Windows

Liniar profile colour options

As well as standard "smooth" white, Liniar windows are available in a host of foiled colours, as show below. *please note images below are just a representation, for true colours of the profile, please ask to see a sample.*


White Woodgrain


Silver Grey

Basalt Grey

Slate Grey

Anthracite Grey

Agate Grey

Irish Oak

Siena PN



Beck Brown

Dark Red

Wine Red

Chartwell Green

Moss Green

Dark Green

Steel Blue

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