Liniar Flush Sash Windows

Flush sash windows are the latest exciting development from Liniar. They offer the realism of a traditional pre-1932 timber window combined with 21st century thermal benefits.

Many property owners require a traditional timber window frame, sometimes due to planning or environmental restrictions. Liniar Flush Sash windows can be mechanically jointed, for an authentic timber appearance.

Timber frames tend to be expensive, need regular maintenance and can be difficult to replace.

Liniar recognised the need to develop a casement window frame that would fit into any property where the sash fitted flush into the frame – and which could be foiled to look like traditional timber or to offer a sleek, contemporary finish.

A+ rated windows

Liniar flush sash windows, like the rest of the Liniar EnergyPlus window range, are A+ rated. They offer a lower cost window with higher thermal benefits than timber – in addition to being fully secure.

Available in sculptured profile with the flush finish on external faces, 28mm double or triple glazing, internally beaded, with a wide choice of opening configurations, colours, finishes, hardware and glazing.

To find out more about specific Window Energy Ratings, visit our WER Calculator.

Liniar – brand new

Created and produced in our purpose-built factory in the heart of the UK, the Liniar range of windows and doors has been celebrated for its impressive energy efficiency. What you may not know though is that Liniar doesn’t sell the finished products directly.

Using cutting edge technology and machinery, Liniar extrudes the lead-free uPVC frames used for its products, and distributes them to a nationwide network of reputable window fabricators. These fabrication experts make Liniar flush sash uPVC windows to our precise and exact pattern. Glass is added and the fabricator then either fits the products themselves or supplies them to independent window installers.

Find your nearest Liniar fabricator here or contact us for more information.


Mark II loves Liniar Flush Sash Windows!

“Liniar Flush Sash windows are the latest exciting development from Liniar. Designed to look like timber, but have all the benefits of uPVC – they’re ideal for traditional or contemporary buildings! And there’s more… they are also fully weather and security tested”

Hi, I'm Mark II
Head of Testing at Liniar

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Why choose Liniar Flush Sash Windows?

All Liniar Products are Made in Britain

More cost effective

The profiles used in Liniar flush sash uPVC windows deliver high energy savings for the homeowner at a cost effective price. Liniar window systems are capable of achieving A+ WER (Windows Energy Ratings) with cost effective double glazing – and a U-value as low as 0.8 W/m²K (with triple glazing).

Better for the Environment

Better for the environment

Liniar flush sash windows are fully and easily recyclable at the end of their lifespan. Also, all Liniar’s window frames are, and have always been, 100% lead-free – far ahead of legislation. You no longer have lead in your petrol or paint, so why choose to have frames containing lead?

Ultra Slim Sight Lines

Ultra-slim sightlines

Liniar’s flush sash uPVC windows are less frame and more glass, meaning a much more attractive window and letting in the maximum amount of natural light. High-tech design and engineering combines with the flexibility to create an individual appearance for every home, pushing the boundaries of possibility.

Thermally Efficient Windows

Thermal efficiency

The ground-breaking profiles used in Liniar flush sash windows have a much greater thermal efficiency than conventional uPVC windows. By developing the latest in multi-chambered profile technology and removing unnecessary steel reinforcement, Liniar ensure that the warmth remains where it should – inside.

Keep Heat Inside

Keep heat inside

With a unique symmetrical multi-chambered PVCu profile, Liniar flush sash windows can easily achieve an A+ rating - helping conserve heat within the property.

Less Frame, More Glass

Less frame, more glass

Liniar flush sash windows offer slim sightlines to let in maximum light, with the sash fitting flush within the frame to give the appearance of traditional timber windows.

Low Maintenance

Low maintenance

Liniar flush sash windows will never rot, rust, or require painting - just a quick clean with warm soapy water, even with our foiled colours.

High Security

High security

Liniar flush sash windows are fitted with high security multi-point locking as standard and are independently tested to the requirements of PAS:24 2012.

Triple Glazing

Triple glazing

Liniar flush sash windows are available with 28mm double or triple glazing - both delivering superb energy performance.

Consumer choice

With a range of optional extras including Georgian and astragal bars, together with a wide range of colour options, your customers will be spoilt for choice.

Great choice of colours

Beautiful Colours

Liniar flush sash windows are available in a great choice of colours – not just the standard white.

With many colours available from stock you won’t have a long wait for your new windows.

Whether traditional or contemporary, Liniar flush sash windows can be personalised to suit the colour scheme of any property.

The factory-fitted foils on Liniar windows give the appearance of woodgrain – and they won’t scratch or peel off – meaning homeowners can be certain of a product with a low maintenance, easy clean finish.

Safe and secure

Strong and Secure

All Liniar products are designed, tested and certified to meet the highest standards of security because we believe a home should be a safe haven. Liniar flush sash windows have passed PAS 24:2012 Enhanced Security Performance with flying colours. Built in features also mean that Liniar flush sash window frames hold Secured by Design status.

Secured by Design status is awarded to products designed with exceptional security features as their main priority and are tested to meet the requirements of the Association of Chief Police Officers.