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An innovative and quality bi-fold

Combining innovative design with excellent functionality, Cortizo bi-fold doors provide complete design freedom for your project.


Up to 14 sashes available, alongside outside and inside openings, with the option of either even or odd numbers of sashes depending on your requirements

Ultra-energy efficient

The Cortizo bi-fold has a U Value from 1.1 (W/m²K) for maximum energy efficiency and thermal performance


There are no hazardous thresholds for those with limited mobility and there is the possibility of an option to embed the lower frame in the floor

The right dimensions

Maximum glazing thickness of 45mm; maximum weight/sash of 120 kg, a maximum dimensions/sash width (L) of 1,200mm and height (H) of 3,000mm.

An excellent bi-fold solution for your project

With numerous panel configurations and opening types to choose from, and the option to fold inwards or outwards, Cortizo slim line bi-fold doors create a smooth transition from the inside to the outside and can be adjustable to any type of project, from family homes to commercial buildings.

The larger panel sizes of up to 1200mm wide and up to 3000mm high mean reduced sightlines and the door, which comes with thick thermal breaks, has a high security lock system and is PAS 24, Secured by Design and Document Q compliant.

Bifold door

The perfect aluminium bifold door, for your door replacement project, whether you need a sleek three panel bi fold door or a large, sweeping arrangement, allowing for up to 14 sashes and inward and outward opening, with the possibility of either even or odd number of sashes and an option to embed the lower frame in the floor.

  • U Value from 1.1 (W/m²K)
  • Opening possibilities – Interior up to 14 sashes, Exterior up 14 sashes
  • Maximum dimensions/sash - Width (L) = 1,200 mm, Height (H) = 3,000 mm
  • Maximum glazing thickness - 45 mm
Design your bi-fold doorDiscuss your project
shot looking over a swimming pool, showing cortizo bi-fold doors on the holiday home

FAQ: Cortizo Bi-Fold Doors

Find answers to frequently asked questions about Cortizo bi-fold doors, innovative and functional solutions for creating a seamless transition between indoor and outdoor spaces.

What makes Cortizo bi-fold doors a great choice for my project?

Cortizo bi-fold doors offer complete design freedom with numerous panel configurations and opening types to choose from. Whether it's a small three-panel door or a large sweeping arrangement, these doors provide sleek aesthetics and excellent functionality.

Can Cortizo bi-fold doors be customized to fit my project's requirements?

Yes, Cortizo slimline bi-fold doors can be adjusted to any type of project, be it residential or commercial. With options to fold inwards or outwards, you can create a seamless connection between your indoor and outdoor spaces.

What are the security features of Cortizo bi-fold doors?

Cortizo bi-fold doors prioritize your security with a high-security lock system. These doors are also PAS 24, Secured by Design, and Document Q compliant, ensuring optimal protection for your property.

What are the maximum panel sizes and glazing thickness for Cortizo bi-fold doors?

Cortizo bi-fold doors offer larger panel sizes of up to 1200mm in width and 3000mm in height. This design feature reduces sightlines and allows for more natural light. The maximum glazing thickness supported is 45mm.

What thermal efficiency can I expect from Cortizo bi-fold doors?

Cortizo bi-fold doors offer impressive thermal performance with a U-value as low as 1.1 (W/m²K). This ensures energy efficiency and helps maintain a comfortable indoor environment.

Contact Us
A Cortizo BI-FOLD DOOR in black.

We have been using TWR since we started our company in 2014. They have always given a friendly and efficient service so I would have no hesitation in recommending them to other installers.

Cumbria Windoworks

Having worked with TWR for over eight years and purchasing all our commercial and aluminium products from them I can’t recommend them highly enough. They provide us with high-quality windows and doors efficiently and at a very competitive price

Everglade, Manchester

We have worked with TWR for 10 years, the product supplied is nothing short of excellent, and the enquiry stage is smooth all the way through to the aftercare. Commercial or domestic TWR will advise on and support you through ordering!

TWG, Lincoln

Dealt with Terry and Dawn, simple and to the point ordering of windows and aluminium Bifolds. Very helpful and honest.

Can recommend to anyone!

Dan C