uPVC Sliding Patio Doors

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Quality uPVC Sliding Patio Doors designed & manufactured in the UK


Not only do we boast an aluminium patio door that’s packed with features, but we can also offer our proven uPVC patio door which offers a number of key design features in its own right. The uPVC Sliding Patio Door continues to be the highest specification and most installer friendly in the industry. It is virtually maintenance free and offers high energy efficiency having been tested to severe weather conditions. Choose from a wide range of colours to complement your home.

Like our uPVC bi-folding doors, our market leading uPVC sliding patio doors come with an extended 10 year warranty.

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

Key features of uPVC Sliding Patio Doors

  • Impressive range of timber alternative foil finishes including white, cream, grey, black, golden oak, Irish oak and rosewood.
  • Any RAL colour using a factory applied paint finish
  • Stylish, exclusive to KAT door handles with 10 year guarantee
  • Hercules rollers capable of taking sash weights up to 160kgs
  • 3 star diamond rated lock cylinder with kitemark
  • Choice of easy access low thresholds meeting Part M
  • Severe weather tested to BS 6375/1:2009
  • Enhanced security features and certified to PAS23/24
  • A midrail option for front door applications including letterbox if required


  • Integrated blinds fitted between 2 panes of double glazing

Gloss White
Cream on White
Black on White
White Woodgrain foil
Golden Oak foil
Rosewood foil
Grey foil
Wide range of RAL colours available
Available in 2, 3 or 4 pane configurations
Open from left/right hand side or from both ends
Internal or external slider * except for 20mm low threshold (internal slide only)
Mid rail option available, with or without letterbox
General Description
The KAT Sliding Patio Door continues to be made to the highest specification and is the most installer friendly in the industry.
Plaintherm Total +' low emissivity 28mm sealed units
Clear glass, soft coat lamination, argon filled units
U Value 1.0
Triple glazing available, weight restrictions apply - supplied in line with GGF guidelines
3 star, diamond rated 40/40 cylinder with kitemark
Hercules 'self-levelling triple roller system' which allows a sash weight of up to 120kg
Nylon rollers on room dividers
Vanguard handles with 10 year guarantee, available in White, Anthracite Grey, Black, Chrome, Brushed Chrome and Gold
Letterbox Black, White, Polished Chrome and Gold
Night Vent
30mm add 11mm to plaster line
45mm add 24mm to plaster line
Outerframe has an internally flush edge detail for improved aesthetics
Maximinium outerframe width 4.9m
Maximum outerframe height 2.4m
Minimum outerframe height 1m (e.g. for serving hatch)
Optional Mechanical outerframe
Maxmium sash width 1.5m
Maximum sash weight 160kg
Options: Decorative sash, Decorative bead, Chamfered sash, Chamfered bead, Ovolo bead
Anti-lift blocks
6 hook multi-point lock * 8 hook when height over 2100mm
Fixed sash mechanically secured to outerframe
Ultion triple star, diamond rated 40/40 cylinder with lock down mode
Heavy duty security sash bolt option
58mm fully weathered standard PVCu threshold
20mm low threshold - weather tested to BS6375 - Anodised Silver - optional ramp for wheelchair access. Stainless Steel running track
9mm room divider - non-weathered Anodised Silver Aluminium
With built-in drainage and integral end caps, no unsightly drainage slots
Testing to severe weather conditions (BS6375)
Air permeable - 600 Pa
Water penetration - 300 Pa Wind loading - 1600 Pa

Product Awards




We have been the leading trade supplier of patio doors across the UK since 1998.

Our uPVC patio door is subject to regular development as we continue to lead the market. It is packed with safety and security features and is available in 2, 3 or 4 door configurations, opening from left or right or from both ends. More secure than French double doors, they offer light, space and flexibility without compromising where you put your furniture. Our standard and low thresholds have been weather tested and our low threshold meets Part M Regulations.

The door is severe weather tested to BS 6375/1:2009 and is certified to PAS23/24, meeting the UK’s highest standards for weathering and security.



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


uPVC is renowned for being virtually maintenance free and highly durable.

This material has great thermal attributes and has been the material of choice for residential doors and windows for the last 25 years. We have a very wide range of timber alternative grain finishes for our patio doors including dual colour options, with different colours each side.




With our wide range of exclusive designer doors we also offer you a complete range of accessories from handles, to threshold options, to opening configurations.

Our patio door handles are luxury products, made exclusively to a KAT design and crafted from Stainless Steel and are guaranteed for 10 years. Handles are available in White, Chrome, Satin, Gold, Grey and Black. Letterboxes are available in White, Polished Gold, Black or Chrome.

Please consider your choice of ancillary hardware carefully because that is what you will eventually notice most when your products are installed. Check out the finishes on our handles because it is attention to detail that helps make this unique product range so exciting.




Safety & Security


Our uPVC patio doors were designed to discourage even the most determined intruder, thanks to our high security locking systems. We know how important it is to keep your home secure.

All KAT uPVC patio doors are fitted with a 3 star  diamond rated lock cylinder with kitemark. Our market leading patio doors also have integrated anti-lift systems so they cannot be lifted off the track from the outside, when in the locked position.


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. KAT uPVC Sliding Patio Doors are available in:

White gloss
Cream on White
Black on White
Golden Oak
Golden Oak on White
Rosewood on White
White Woodgrain
Anthracite Grey on White

A wide range of RAL colours is available