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Established in 1974, Liniar’s ethos of ‘doing the right thing’ and flat, friendly structure – as well as its commitment to people, investment, innovation, product development and sustainability – goes all the way back to its roots. Liniar’s extrusion operations began in the East Midlands nearly five decades ago and boasts steady growth since the day it opened its doors.



We produce a range of Liniar window and door options:

  • Beautiful casement windows - with their traditional British style that offers slim sight lines to allow maximum light, with a wide choice of opening configuration and Georgian bars are also available.

  • Simple tilt and turn windows - can be used as a fire escape or simply to let in more fresh air. Available with a wide range of opening configurations.

  • Convenient reversible windows - with a 180° pane rotation provides a clever solution for high windows that are difficult to clean from the outside.

  • Flush sash windows - blends the clean lines and elegance of a pre-1932 timber window with modern thermal efficiency. Designed to complement character properties perfectly, as well as modern, architectural masterpieces.

  • Quality french doors - designed to perfectly match the suite of windows, offering the same thermal benefits with a choice of ‘open in’ or ‘open out’ styles  

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  • Premium sliding doors - The Liniar sliding patio door was designed from scratch to take advantage of the very latest technology that is built to last.

  • Exquisite Elevate roof lanterns - Liniar’s roof lanterns feature slim sight-lines and a sleek transition of roof bars, allowing in more light for an unobstructed view. Elevate roofs are made to order and delivered within a maximum of five working days.

  • Timeless and cosy conservatories and glass extensions - energy-efficient glazed extensions in the UK today. Whether you want to create a bright study, a kitchen extension, a family room, a dining room or a garden room that opens right up in the summer, the Liniar range has something to suit your lifestyle.

  • Bring your outdoor space in with our beautiful range of composite decking - we can offer a decking solution to suit your style. Our low- maintenance, lead-free deck boards are available in a choice of contemporary colours, with an anti-slip tread for additional safety and an anti-wear finish for long-lasting durability. No more slippery decking boards with constant maintenance!

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WinRem manufactures Liniar windows, doors and bifold doors in Gillingham, Kent  and understands the need for quality and consistency from a well established, respected and innovative organisation like Liniar, and that’s why we are a proud Liniar fabricator. 



Liniar windows and doors come with a wide choice of opening configurations, finishes, hardware and glazing options.


The Liniar range comes in a wide choice of colours. Check out the colour options that are available to suit your home.


Liniar products carry various levels of guarantee.

  • Windows and doors - 10 years

  • Bi-fold and sliding doors - uPVC extrusions: 10 years, moving parts: 5 years, coloured hardware finish: 1 year

CORGI backed installation
The installation of our doors and windows are covered by our CORGI Fenestration guarantee, giving you a life-long guarantee you can rely on.

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