Bi-fold Doors

uPVC bi-fold doors are a multi-panelled door design, that folds neatly away to allow 90% of the door aperture to become free. This means that you can enjoy unrivalled standards of accessibility and spaciousness.

Explore our uPVC Bi-Fold Doors

Hover over the green dots to learn more

Choose your colour

  • Sculptured
  • Chamfered

To see the full range of the colours we offer, visit Liniar’s colour page

All colours are representative only- please refer to a Liniar swatch booklet for accurate colours and finishes. Not all Liniar products are available on all substrates – please refer to the Liniar swatch booklet. Colours and substrates subject to change. RAL numbers are quoted to be the nearest match.

Why choose Liniar?

Thermally Efficient

All of our bi-fold doors achieve an impressive degree of thermal efficiency, utilising our intelligent multi-chambered profile secure A+ standards. We only offer you the best.

Other door styles

Not sure upvc bi-fold doors are the ones for you? Not to worry, have a look at the other styles Liniar offers.

Bi-fold doors

Liniar offered the very first fully bespoke uPVC bi-fold doors to be engineered, designed and manufactured in the UK – and we believe that Liniar bi-fold doors are still the very best.

Bi-fold doors are the perfect way for you to create space, let in fresh air and flood your home with natural daylight by being able to open up an entire wall of your home.

Whatever purpose you have for your bi-fold doors, the Liniar product provides a truly stunning alternative to French or patio doors.

Ultra-slim sightlines

Liniar bi-fold doors have ultra-slim sightlines, providing rooms with a modern, clean appearance – and are available in a wide choice of opening configurations and colours.

The innovative low threshold option is just one of the safety features included, making them family and wheelchair friendly.

On top of all of that, Liniar’s bi-fold doors offer excellent levels of energy efficiency, alongside superb security features – this all adds up to create a beautiful space-saving solution for your property that will also hugely enhance its appearance.

Find out about the range of thresholds available.

Bi-fold doors

Explaining Energy Efficiency

The installation of energy efficient windows, doors and roofs is one of the best ways you can save energy within your home.

Mainly due to our innovative uPVC multi-chambered profile design, Liniar frames outperform most of the other leadings brands in the UK.

A door’s thermal efficiency is measure in U-values. These demonstrate the effectiveness of a door at stopping the movement of heat into and out of a property.

The lower the U-value is, the higher the door’s efficiency at preserving the heat inside of a building when cold outside.

The Liniar bi-fold range can achieve a U-value of 1.3 W/m²K when fitted with cost effective double-glazing units, which means you’ll be able to enjoy a warmer and quieter home as well as lower energy bills.


Slim hinges have been added, with hidden fixings inside. This not only seamlessly preserves the sleek lines but increases security as it is impossible for them to be unscrewed externally.

We designed our own innovative solution to enable us to offer a low threshold without the need for expensive and messy excavation.

It’s often the little things that make a big difference – we’ve even designed folding keys to avoid any problems with keys being left in the locks during use.

To see the correct procedure to open and close a Liniar bi-folding door, click here or find out more about the configurations here.

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

QNX Passive House Secured By Design Corgi Fenestration BSI12608 PAS24 Security ISO 14001 ISO 9001 bhhpa Bali NCC Queens Awards Sustainable Midlands Supporter

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