Call: 0116 319 0702 Email:


Slimline Aluminium Bi-Fold Doors

At Midori Aluminium, we design, manufacture, supply, and install a range of high-performing slimline aluminium bi-fold doors. Our slimline aluminium bi-folds are designed to maximise natural light with large expanses of glass and super slim frames. They are secure and energy efficient and suitable for both residential and commercial applications. Get a Quote

Features & Benefits

Innovative aluminium sliding folding door systems for luxury installations

Slimline aluminium bifold doors are a great way to create large openings and seamlessly connect interior and exterior living spaces. With sightlines of only 107mm from frame to sash, they admit an abundance of natural light with minimal interruptions. With the capacity to accommodate up to 14 folding door leaves, they are the perfect choice for property renovations and new-build projects.

Compatible with up to 14 folding panels (7 each way)

Can be specified with a single traffic door for easy access

Available with a selection of different thresholds for advanced weather protection or ramp access

Engineering grade smooth sliding track system

Maximum single sash size of 1200mm x 3000mm

120kg maximum single door leaf weight

Easily customisable with trickle vent installation

Marine quality colour options with dual colour compatibility

Product Options

Our aluminium bi-fold doors are fully customisable to find the perfect style for your property

  • Colours
  • Glazing
  • Hardware
  • Downloads
  • Colours





    Anthracite Grey

    Anthracite Grey

    Black Out / White In

    Black Out / White In

    Grey Out / White In

    Grey Out / White In

    Bespoke RAL colour

    Bespoke RAL colour

    A selection of attractive colours to complement any installation

    Our premium aluminium sliding doors feature a durable powder coated finish. They can be supplied in a selection of standard colours including White, Anthracite Grey, and Black and can also be specified with a dual-colour frame. For the ultimate in bespoke customisation, you can request any of over 200 RAL powder paint colours for your premium aluminium sliders.

    Get a Quote


    High performing glazing options to maximise performance

    All Midori Aluminium bi-fold doors are fitted with high-performing double glazing or triple glazing. Thanks to the inherent strength of their aluminium frames, they can support extremely large areas of glass. With maximum glass panel sizes of 1200mm x 3000mm per sash, they can create a wall-of-glass effect with super-slim sightlines and maximized exterior views and natural light admittance.

    Get a Quote
    conservatory with a skylight and bi-fold doors internal


    A selection of attractive and smooth-functioning hardware and accessories

    At Midori Aluminium, we use a range of professional industry experts to supply our door hardware. Working with Aluspec, Alpro, VBH, and Titon, we can offer all our customers an extensive range of hardware options. Our aluminium bifold doors also feature a unique universal lock keep to boost security standards.

    Get a Quote
    black aluminum hardware door with black metal handle


    Download our product brochures for more detailed technical information

    All our downloadable brochures and guides are completely free to access by clicking on the links below. Find out all you need to know about our range of aluminium bifold doors from colour options to configurations and glazing to thermal performance. Our downloads will also provide inspirational images to showcase your products to any potential customers.

    Get a Quote

    Profile options

    Aluminium bi-fold designs to suit contemporary and traditional properties

    Aluminium bifold doors from Midori Aluminium are available with a choice of two different profile styles. The classic square profile is perfect for installations in older properties with more traditional architectural designs. The contemporary textured square profile is more suited to modern installations and creates a sleek and stylish aesthetic.

    Contact Us
    white uPVC partially opened bi-fold door
    conservatory with a skylight and bi-fold doors internal
    open bi folded door dark navy living room
    white uPVC bi-folding doors external

    Technical information

    High-performing and aesthetically attractive aluminium bifold doors

    • Available with glazing thicknesses of up to 44mm 
    • U-values as low as 1.4 W/m²K 
    • Optional adjustable jamb for easy adjustment during installation 
    • Door Energy Rating (DER) B for Part L compliance 
    • 73mm frame depth 
    • Robust aluminium cill in various sizes: 90mm, 150mm, 190mm, 230mm 
    Get a Quote


    Our most regular aluminium bi-fold door FAQs

    Want to find out more about our aluminium bi-fold doors? Have a read of the answers to some of the most frequently asked questions that we receive. If you can’t find the answer to what you’re looking for, send us a message using our online contact form and we’ll get back to you as quickly as possible.

    What are your average lead times?

    We offer all our regular customers superfast lead times of just a few days. For new customers, we offer excellent industry lead times of two to three weeks. Please note that standard product orders will be quicker than bespoke product designs.

    What colour options are available?

    All our aluminium glazing products are powder coated in a selection of standard RAL colours. Bespoke RAL colours are available on request with dual colour options, anodized and marine quality finishes also possible.

    Do you have a showroom where we can view your products?

    Yes. Our showroom is located in a separate unit alongside our main factory and headquarters. It is open five days a week and there’s always a member of our team on hand to help with your enquiries

    Where do you deliver to?

    We deliver to locations across the UK. This includes throughout England, Scotland, and Wales for glazing installations, trade deliveries, and commercial glazing supply and installation.

    Do you offer any finance packages?

    No. We offer all our customers extremely competitive prices on all products. This includes design, manufacturing, supply, and installation. We also provide comprehensive 10-year warranties on all our products.

    Our process

    Streamlined processes to maximise efficiency and deliver quality

    At Midori Aluminium, we work tirelessly to provide our customers with the best possible service. From the initial enquiry through design and manufacturing to product delivery and installation, we work closely with every customer to ensure only the highest standards.

    Get a Quote

    Get in touch

    Contact us with your project details and requirements. We will provide you with a free, no-obligation quote and answer any questions you may have.

    Select your products

    Choose from our range of high-quality aluminium windows and doors, available in various styles, colours, and configurations. We will design and manufacture your products to your exact specifications and preferences.

    Product delivery

    Receive your products within the agreed time frame. We will deliver them to your site or premises, ensuring they are well-packaged and protected during transit.

    Ready to install

    Enjoy a hassle-free installation service. Our high-quality products are easy for installers to work with, and homeowners can enjoy professional installation from our experienced and qualified team.


    At Midori Aluminium, our excellence in manufacturing and installation is highlighted by accreditations from trustworthy bodies such as Certass and Made in Britain.