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Ultra-intelligent design

Using intelligent profile design, our slimline aluminium bifold doors capture the very best in market leading design and technology.

Fitted as an internal room divider, a back door to the garden, or to give a period property a modern twist, these doors add a touch of sophistication while also keeping properties protected thanks to anti-finger locking technology, durable materials, and excellent safety measures.

Our slimline bifold doors are:

  • Efficient – Fits flush against the edge of the doorway for unobstructed views.
  • Thermally efficient – Polyamide thermal break enhances thermal efficiency.
  • Versatile – Options to customise multiple elements.
  • Secure – Featuring in-built security glazing and robust locking mechanisms.
  • Long-lasting – Tested for weatherproofing.
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Trusted manufacturers since 2000

Professional Installer Network

Quick Supply

Made in the UK

Exceptional Quality Control

Knowledgeable Family Run Business

Bespoke Complex Products Fabricated

Cortizo Bi-Fold Doors

If you want a top-of-the-line option for your home renovation and interior design, consider investing in high-quality hardware like Cortizo bifold doors. These sleek and stylish doors provide a seamless transition between indoor and outdoor spaces, making them perfect for any self-build, renovation, or house extension project. With their slim design and durable aluminium construction, Cortizo bifold doors can easily cover large openings while offering practicality and easy access.

  • Slimline bifold doors
  • High security locking systems
  • Wide range of colour options
  • Engineered to achieve doors sizes of 1200mm wide and 3000mm high
  • Acoustic insulation
  • Thermal insulation
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Why Choose Cortizo Bi-fold Doors?

Cortizo bi-fold doors are designed with the highest quality standards, ensuring exceptional performance for years. With up to 14 sashes and various opening types available, these doors can be tailored to fit your requirements perfectly. They offer maximum energy efficiency and resistance against weather conditions, thanks to their innovative construction.

The ultra-compact design saves space, with each panel having a sightline of just 120mm when folded. Additionally, Cortizo bi-fold doors improve accessibility by eliminating hazardous thresholds. Overall, they provide an excellent solution for any property.

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A good lock is not enough

Our Gold Standard
We use Ultion locks as standard, ensuring our customers can offer the highest security on the market.

Guaranteed
Ultion supplies a powerful lock, with an equally powerful anti-snap guarantee. Should your customer’s lock break by snapping, Ultion will refund them £2000.

State of the Art
Ultion locks have 11 pins, creating just under 300k lock combinations, making it virtually impervious to picking.

Accredited
Ultion locks are Kitemark approved, and Secured by Design, tested to rigorous police standards.

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  • Cortizo bi-fold door
  • Colours
  • Downloads
  • Glass Options
  • Hardware Options
  • Cortizo bi-fold door

    Technical Specification

    Brand Cortizo

    Sashes Up to 14 sashes, inward and outward opening

    Max glazing thickness 45mm

    Max frame section 73mm

    Max sash section 73mm

    Profile thickness 1.8mm

    Max width 1,200mm

    Max height 3,000mm

    Max sash weight 120kg

    U Value 1.1 W/m²K

    Specs

    Colours

    Colours

    Pure White RAL-9010

    Pure White RAL-9010

    Matt White

    Matt White

    Matt Brown

    Matt Brown

    Jet Black RAL-9005

    Jet Black RAL-9005

    Grey

    Grey

    Gloss White

    Gloss White

    Gloss Off White

    Gloss Off White

    Dark Red

    Dark Red

    Dark Grey

    Dark Grey

    Dark Green

    Dark Green

    Dark Brown

    Dark Brown

    Dark Blue

    Dark Blue

    Cream

    Cream

    Black

    Black

    Anthracite Grey RAL-7016

    Anthracite Grey RAL-7016

    Airforce Grey

    Airforce Grey

    Downloads

    Glass Options

    Glass Options

    Unglazed

    Unglazed

    Standard Self Clean

    Standard Self Clean

    Standard Tough

    Standard Tough

    Solar Control

    Solar Control

    Self Cleaning

    Self Cleaning

    Self Clean Solar Control

    Self Clean Solar Control

    Satin Obscure

    Satin Obscure

    Laminated Security

    Laminated Security

    Hardware Options

    Hardware Options

    White 9010

    White 9010

    Light silver

    Light silver

    Grey 7016

    Grey 7016

    Dark silver

    Dark silver

    Custom ral

    Custom ral

    Black 9005

    Black 9005

    Gallery

    FAQs - Slimline Aluminium Bi-fold Doors

    Explore our FAQs to learn more about the advantages and configurations of our Slimline Aluminium Bi-fold Doors. Find answers to common questions about these high-end, versatile products.

    What sets Cortizo bi-fold doors apart from other options on the market?

    Cortizo bi-fold doors stand out thanks to their high-quality and innovative design. With up to 14 sashes, a variety of opening types, and an ultra-compact design, Cortizo doors provide a unique blend of functionality and aesthetics.

    How will a Cortizo bi-fold door benefit a living space?

    The ultra-compact design of Cortizo bi-fold doors minimises the space required when the doors are folded. Each panel has a sightline of just 120mm when folded, maximising living space and creating a seamless transition between indoor and outdoor areas.

    What security features are integrated into Corizo bi-fold doors?

    Cortizo bi-fold doors come equipped with high-security locking systems, ensuring the safety of any property. With up to 14 sashes, each contributing to the overall security, these doors provide peace of mind.

    Can Corizo bi-fold doors be customised?

    Yes, we offer a wide range of colour options, allowing you to customise the doors to match you or your customer’s specific design preferences.

    How do Cortizo bi-fold doors contribute to energy efficiency?

    Cortizo bi-fold doors are engineered to provide maximum energy efficiency. With a u-value of 1.1 W/m²K, these doors effectively insulate living spaces, helping to regulate indoor temperatures and reduce energy consumption.

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    Delighted Customers Share Their Experiences

    At Direct Trade Windows, our commitment to excellence is reflected in our exceptional customer satisfaction.
    We take great pride in our impressive 4.9 rating on Google, a testament to the unparalleled quality and service we offer.

    Check Out Our Google Reviews

    We had been severely let down by a previous supplier, but when we turned to Direct Trade Windows for help, we hit the jackpot. Helping us to transform a residential development in Hersham, they supplied us with high-quality, ultra-slim Cortizo sliding doors, complete with the bespoke sliding options that we needed. Our requirements were very specific and not readily available on the market, but Direct Trade Windows really went the extra mile to help us out, coming through with quality products and excellent service. We will definitely be using their services again.

    Park Lane Developments

    2022

    Nothing but praise for this outfit. It was a pleasure to work with them. It was a nerve-wracking undertaking for us, the biggest single expense to fit three large window/french door combos in our extension, yet the team made it a relatively relaxing experience with their professionalism and good humour. Thank you all so much for everything you and the whole team have done to get from the initial sale (well done Hash!) to the fun visit we made to the workshop, to the design and its multiple iterations (thank you Taz!) and finally to the installation. Thoroughly recommended.

    Eloise Price - 2022

    Direct Trade recently replaced a large, faulty sky light. They said they’d take 3 hours, they took two. They did a fantastic job, there was absolutely NO dust or mess, at all. I was amazed… thought I’d be clearing up dust for days! I also didn’t need to get the recess re-plastered or painted – bonus!

    I highly recommend Direct Trade. They are a professional and friendly service delivering a high quality product.

    Vicky Steele - 2022

    I met with Taz at the warehouse to see some examples of the glazing and from the beginning he was extremely professional, personable and helpful. We ordered crittal style windows and doors, a Juliet door, 3 other windows and roof lights and every one of them was excellent quality, secure and well made. I highly recommend Taz and his team at Direct Trade Windows!

    Nick Robinson - 2021

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