Quality aluminium sliding patio doors designed & manufactured in the UK

The aluminium patio door system we use is ideal for smaller openings up to 5 metres wide. This patio door features slim sightlines however it is very secure.


When coupled with low emissivity glazing, these thermally enhanced doors achieve very acceptable U values.


These inline sliders are ideal 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.

Key Features of Aluminium Sliding Patio Doors

  • Luxury door handles which are exclusive to KAT
  • Slim aluminium sections means more glass and more light
  • Option of 2, 3, and 4 panel openings
  • You have a choice of 7 colours, including dual colours with a 25 year paint guarantee option
  • Choice of easy access thresholds
  • Midrail option for front door applications with letterbox


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


The standard patio door allows so much light in because there are so few upright panels. Given that we offer Contemporary and Heritage paint ranges, we can have the doors manufactured doors individual as you are. Incorporate a KAT patio door and add a true sense of contemporary design to your project.

Material Information

Aluminium offers the widest possible array of colour options.


Aluminium doors need very little maintenance, merely a wipe with a damp cloth when needed and a regular check to make sure 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. There is a 10 year warranty on standard paint in a range of 7 colours or 25 years warranty on Marine Grade paint.


With a titanic range of exclusive designer doors we also recommend a complete range of accessories from handles, to threshold options, to opening configurations.


The patio door handles are luxury products, designed by the KAT team and crafted from Stainless Steel. Choose from six different finishes, each with a 10 year guarantee.


Please think about your choice of ancillary hardware carefully because that is what you will ultimately notice most when your products are installed.

Safety & Security

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


All KAT doors can have 3 Star certified lock barrels, which are anti-pick, anti-snap and anti-bump. The patio doors have integrated anti-lift systems designed so they cannot be lifted off the track from the outside, when in the locked position. Additionally, aluminium is a more robust material than timber or PVCu.

Colour Options

KAT Sliding Patio Doors are available in a choice of 5 single colours and 2 dual colours, namely:

Single Colours:

9910 Hipca White High Gloss
7016 Anthracite Grey Matt
9005 Black Matt
7035 Light Grey Semi-gloss
9001 Cream Matt

Dual Colours:

9005 Black matt outside / 9910 Hipca White High Gloss inside
7016 Anthracite Grey Matt outside / Hipca White High Gloss inside