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Perfect for homeowners.

Get the best of both worlds with cost effective, energy efficient PVCu windows and
perfectly matching, ‘warm touch’ aluminium bi-folding doors.

Alumina by Liniar is a true aluminium bi-fold door with high thermal efficiency – helping to keep more of the heat in your home and reduce energy bills.

With U-values as low as 1.2W/m²K, Alumina offers much better energy efficiency than other aluminium bi-folding doors, thanks to its innovative thermal lock.

High security features include shootbolts, anti-lift features, anti-bump cylinders and optional anti-snap cylinders. The Alumina bi-fold is so secure, it has passed stringent PAS24 testing and carries Secured by Design accreditation for your peace of mind.

As the only foiled aluminium bi-fold on the market, Alumina matches perfectly with Liniar PVCu windows – offering a warm touch finish. The shape of the frames has even been carefully designed to match with the sculptured shape of Liniar windows, so the whole installation is perfectly co-ordinated.

When installed with Liniar windows, doors and conservatory roofs, Alumina also offers a single point of guarantee for your home.

With a low maintenance finish, Alumina also comes with full operational and maintenance instructions.

‘Warm’ colours

To give you an outstanding colour match to uPVC windows and doors, your Alumina bi-fold can be foiled with any woodgrain or coloured finish.

Warm home

With 28mm double glazed and 36mm or 40mm triple glazed units available, combined with its innovative thermal lock Alumina offers ‘true’ U-values as low as 1.2W/m²K.

Peace of mind

With multiple bi-directional locking points, shootbolts that secure firmly into the track, built-in anti-lift features and anti-bump cylinders, Alumina ensures the highest security for your family home.

Family friendly

Liniar’s optional aluminium low threshold is just 23.5mm high at its highest point. Add a low threshold tray to make it Part M compliant to make it family friendly and for easy wheelchair access.