Alumina by Liniar

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The Liniar design team is constantly pushing the boundaries of product innovation, finding clever solutions to challenges that others have failed to address.

Continued investment in infrastructure, technology, machinery and a great team of people has helped Liniar to become one of the market leading PVCu window systems with a customer base of specialist fabricators all over the UK.

Liniar’s latest innovation, Alumina by Liniar, is a true aluminium bi-folding door system, beautifully sculptured and foiled to match perfectly with the full Liniar product suite.

Designed by experts

Alumina is more energy efficient than other aluminium bi-fold doors – with U-values as low as 1.2 W/m²K.

Liniar were the first to launch a bespoke PVCu bi-folding door system with associated patented hardware and have more than 500 years of industry experience between them – the same team of experts have designed and developed Alumina by Liniar.

The latest development from this ground-breaking company and team, Alumina heralds the arrival of a new breed of bi-folding doors.

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See our video showing the correct way to open and close an Alumina bi-fold door here.

Mark II Loves Alumina Bi-Fold Doors!

“A ‘true’ aluminium door with all the benefits of PVCu! Foiled finishes, U-values as low as 1.2, sash sizes 2.5m high and 1.2m wide and a patented polymer lock – what more could you want!”

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

Explore our Alumina Bi-fold Doors

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Choose your colour

Powder Coat

Foils

  • Sculptured
  • Chamfered

Accreditations

Why Choose Alumina?

Strength with size

Commercial and heavy-duty applications require greater strength, with wider and taller panes of glass and bigger spans. Alumina by Liniar is a true aluminium door, manufactured with standard aluminium machinery, with panes spanning up to 1.2 metres wide and 2.5 metres high.

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Perfectly matching

As well as being available in practically any powder-coated colour imaginable, what makes Alumina unique is that it’s also available in a beautiful woodgrain or flat foiled finish, enabling consumers to choose a style that perfectly matches the windows of their property for a perfect finish.

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Superior U-values

The Liniar range is renowned for its energy efficiency – Alumina is no different. Pushing the boundaries of thermal performance, it offers ‘true’ U-values as low as 1.2W/m²k thanks to its innovative thermal lock and large thermal breaks.

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Security

With Alumina you can be sure of the highest security. Its suite of hardware includes multiple bi-directional locking points, shootbolts, built-in anti-lift features and anti-bump cylinders, ensuring it achieved PAS 24 enhanced security accreditation at the first attempt, and holds Secured by Design status.

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Configurations

Alumina Bi-fold doors are available in a range of opening configurations from 1 to 7 panes so they can be truly tailored to your requirements.

Innovative

The Alumina Bi-fold is packed full of innovative features, including folding keys, ergonomic handles and discreet magnets, the attention to detail is what makes the Alumina Bi-Fold 'best in class.'

Customer choice

Alumina Bi-fold doors are available with a range of powder coated and foiled colours along with additional options, from handles and hinges, to low and half thresholds.

Fully Tested Products

Tested

Our Alumina bi-fold door has been security and weather tested and satisfies the demanding requirements of PAS 24 and Secured by Design.