Thermally efficient Aluminium Bifold Doors

There are so many things to consider when choosing a Bifold Door for your home, such as the size, which way you’d like it to open, the colour, what colour door handles to choose, the height of the door threshold, guarantees and just as importantly, which bifold door has the best thermal efficiency to keep your home warm and dry.


Bespoke Bifolding Doors

KAT has an exclusive partnership with Kawneer and manufactures Aluminium Bifolding doors in the UK to bespoke sizes to suit your project. Each individual door pane or sash, can be made from 700mm to 1200mm wide, giving you the flexibility to create the style of door you’d like. Many homeowners like to have one lead door, or traffic door, which means you can open just one door at a time to gain access from your home to garden, without having to open the whole bifolding door each time. More information on opening configurations can be found on the back cover of the KAT bifold door brochure.

Which colour will you choose for your Bifold Door?

KAT have carried out research to determine the most popular colours for Aluminium Bifold Doors and carry stock of 5 colours, White, Light Grey, Textured Grey, Anthracite Grey and Black, including dual colours, with White inside your home and either Anthracite Grey or Black outside. KAT Kawneer Bifolds can be made in just 2 weeks and delivered to you throughout the UK and Ireland.

If you live near the sea, you might consider the Anodised Black finish, which carries a guarantee on the paint finish for 20 years. Contact KAT on 01625 439666 or by email.

KAT Bifold doors available in 7 colours from stock

Choose from 7 colours for your Bifold Door


What style of door handle for Aluminium Bifold Doors

KAT has designed a door handle for the lead door, which is exclusive to KAT and is available in six different finishes as shown below, with each handle being guaranteed for 10 years.

Choose from six finishes

KAT Vanguard Bifold Door handles

The intermediate door handles are slim and attractive, available in a choice of four finishes. Contact KAT to find out more.

KAT Bifold Door intermediate handles

Intermediate door handles for KAT Aluminium Bifold Doors


Fully weathered standard threshold and industry leading thermal efficiency

KAT’s standard threshold is just 45mm high and is fully weathered to protect you from the elements. If you are fitting new flooring at the same time, you can achieve an almost flush finish, as can be seen in the image below. KAT manufactures the  most thermally efficient bifold door on the market, with industry leading weather resistance. Our Bifolds have been tested to have a water resistance of 750 pascals, 2.5 times greater than the nearest competitor and achieve a low U-Value 1.4 W/m²K°  – with DGU of 1.0 centre pane value

Fully weathered threshold

Standard threshold is fully weathered


All of KAT’s doors and windows can be delivered throughout the UK and Ireland in just 2 weeks and are guaranteed for 10 years. If you are undecided between Sliding Patio Doors and Bifolding Doors this short blog might help answer your questions.

For more information, contact KAT on 01625 439666, or email mailto:[email protected]or visit the website at   KAT’s factory showrooms in Cheshire and Sussex are open Monday to Friday from 8:30am to 5:00pm.