Kawneer bifold doors

Kawneer Aluminium Sliding Patio Doors

Watch Video

Quality Kawneer aluminium sliding patio doors designed & manufactured in the UK


Our aluminium sliding patio door system is perfect for smaller openings up to 5 metres wide.  This patio door features slim sightlines but is very secure. When coupled with low emissivity glazing, these thermally enhanced doors achieve very acceptable U values.  These inline sliders are perfect for applications where it is desirable not to open in or out of a room and they offer a far larger glass area than a set of French double doors.

KAT awarded North West Enterprise Award for Best Patio Company 2017 and 2018.

Key features of Kawneer Aluminium Sliding Patio Doors

  • Anthracite in a luxury textura finish in stock
  • 5 point enhanced security lock
  • Slim aluminium sections means more glass and more light
  • Option of 2, 3, and 4 panel openings
  • Any RAL colour, dual colour or textura finish available
  • Marine Grade finish possible
  • Rigid aluminium sections allow for more glass and therefore more light in your home
  • Stainless steel wheels and tracks


  • 400mm long bar handle to inside only in brushed steel
  • Finger pull to outside with 400mm long bar handle inside
  • Midrail option for front door applications with letterbox
  • Integrated blinds fitted between 2 panes of double glazing

General Description
Elegant and efficient in line system in a range of options with slim sightlines.
Dimensions of Twin Track
Up to 8 metres wide
Meeting Style 87mm
2, 3 or 4 panes
Maximum 160kg panel weight for inline sliders
400mm bar handle fitted inside and outside
Optional: 400mm bar handle fitted inside only
Finger pull fitted outside with 400mm bar handle inside

1,000mm cranked bar handle in brushed steel fitted inside and outside
5 point enhanced security lock

Standard frame size, thermally broken
Height is 54.5mm
Standard bead is 28mm square shape
36mm square bead available
Intended for domestic use – not high rise.
Weather Test Results –
Air 600 Pascals
Wind 2400 Pascals
Water 300 Pascals
U value W/m2K 1.75, subject to glass
Designed, tested and manufactured to the highest security standards with high security multi-point locking
3 Star Diamond Rated Cylinder with Kitemark
We can supply any RAL colour, luxury textured effects or anodised finishes, which includes Marine Grade. All painted and finished in our advanced paint finishing facility at Kawneer Runcorn, in Cheshire.

From stock, we supply:
Single colour:
Anthracite, White or Black Textura finish

Dual colour:
Anthracite textura finish outside with White textura finish inside

Product Awards




It’s not the door you look at but the view through the glass, to the world outside.

Our standard patio doors allow so much light into your home because the sashes are so wide that there are few vertical panels. Incorporate a KAT patio door into your build and add that touch of contemporary design elegance to your project.



Blinds Within Glass


Integral venetian blinds are made to fit neatly between 2 panes of glass, offering a contemporary look for Sliding Patio Doors in a choice of 10 colours; White, Yellow, Hay, Sage, Sky, Cream, Putty, Silver, Dark Silver and Dark Grey. 

Raising and lowering of the blinds is controlled using either a Rotational Wand, Rotational Knob or a Cord system. The blinds carry a 5 year guarantee, are maintenance free, conform to BSEN 13120 Safety Standards and are suitable for 28mm double glazed door sashes up to 1200mm wide.

Material Information


Aluminium offers the widest possible choice of colour options.

Aluminium doors require very little maintenance, just a wipe with a damp cloth when needed and a regular check to ensure the track is kept free from grit and small stones to ensure the doors continue to run smoothly. Aluminium is more resistant to the elements than PVCu and is not likely to warp or rot. We offer a 10 year warranty on standard paint or 20 years warranty on Marine Grade paint.




As standard, we fit the luxury 400mm stainless steel pull bar handle inside and outside, but we understand that you might prefer not to have a handle outside so we offer the following optional alternatives:

  • 400mm stainless steel pull bar handles inside only – 1 year warranty
  • Finger pull outside with a 400mm stainless steel pull bar handle inside

When choosing your handles, please give consideration to whether you will require access externally.







Safety & Security


Our aluminium in-line sliding patio doors are designed to discourage even the most determined intruder, thanks to our high security locking systems. 

All KAT doors are fitted with a 3 star security cylinder.

Our patio doors have integrated anti-lift systems designed so they cannot be lifted off the track from the outside, when in the locked position. Plus, aluminium will require less cleaning than uPVC.

Safety & Security

Colour Options


A little time and care with your choice of colour is advised and your selection should be influenced by your style of property, surrounding architecture or your other windows and doors.

We can supply any RAL colour, luxury textured effects or anodised finishes, which includes Marine Grade. All painted and finished in our advanced paint finishing facility at Kawneer Runcorn, in Cheshire.

From stock, we supply:
Single colour:

Anthracite Grey Textura finish

Dual colour:

Anthracite outside with a luxurious textura finish and White inside

Just let us know your sizes and how you would like the doors to open and we can make your Sliding Patio Door to your bespoke dimensions.

Call into our Showroom in Macclesfield and we can show you a colour chart demonstrating each of the RAL colours available.




We pride ourselves in having some of the best products in the UK. Learn more about the supplier of this product on our suppliers page.

Find Out More