What areas do you supply to?

Based within Bristol, our fleet of vehicles and drivers allows us to cover a broad range of areas throughout the South West, from Cornwall all the way through to London, the South Midlands, and even South Wales. Visit our capabilities page or the areas we cover to learn more.

Do you install your products?

No. We work with a range of trade partner installers across the country, and we manufacture and supply our glazed products to them for installation.

Do you have a showroom?

Yes, our showroom is available by appointment and allows you to view many of our uPVC and aluminium double-glazed products before you purchase. We’re open Monday to Friday, 8 am to 5 pm.

How do I get a quote?

Call our expert team directly at 0117 965 1062, and we can help you get started with a quote on any of our trade products.

How energy efficient are uPVC windows?

Our Deceuninck uPVC windows can reach incredibly high energy ratings like ‘A’ and ‘A++’. Their powerful double glazing and smartly designed frames allow them to retain heat, suppress sound, and provide gorgeous style to a variety of homes.

How do I clean uPVC window frames?

We recommend using warm water, a fresh cloth or sponge, and softer soaps to clean uPVC windows. Harsher chemicals such as bleach are unnecessary and may even damage the windows.

How do I install uPVC window frames?

We recommend professional installation for uPVC window frames to ensure proper fitting and performance. Improper installation can lead to issues with energy efficiency and window operation.

Home » Aluminium Bi-folding Doors

Aluminium Bifold Doors

MB Frames manufactures and supplies high-performance aluminium bifold doors designed to create wide, open connections between homes and outdoor spaces. Combining slim aluminium profiles with generous glazing, our bifold doors maximise natural light and offer impressive views while maintaining the strength, security, and durability expected of a modern external door system. Ideal for extensions, renovations and new-build projects, aluminium bifold doors feature multiple connected panels that glide smoothly along a track and fold neatly together when opened. Flexible configurations let you tailor each system to the project’s dimensions and practical requirements.

Using trusted aluminium systems from AluK, MB Frames provides installers with dependable bifold door solutions manufactured around quality and long-term performance. Homeowners can also explore our range and use our online tool to find their nearest installer.

Why Choose Aluminium Bifold Doors?

Aluminium bifold doors combine expansive glazing, slim sightlines and flexible opening configurations, making them a strong choice for modern extensions, renovations and new-build projects. Their folding design lets multiple panels stack neatly, creating a wide opening between internal and external spaces.

Slim Sightlines & More Natural Light

Aluminium’s strength allows slimmer frame profiles and larger glazed areas. This helps maximise natural light, create clearer outdoor views and give rooms a brighter, more open appearance.

Smooth, Space-Efficient Operation

Bifold door panels glide along a track and fold neatly together when opened, allowing homeowners to make better use of the available opening. The smooth operating system also makes larger glazed entrances practical for everyday access.

Strength & Durability

Aluminium is a robust, long-lasting material that is well suited to large door systems. Its structural strength helps support generous areas of glazing while maintaining dependable performance and a sleek overall appearance.

Flexible Configurations

Aluminium bifold doors can be configured to suit different opening sizes, layouts, and project requirements. This gives installers and homeowners greater flexibility when planning anything from a compact garden entrance to a wider panoramic opening.

How Do Aluminium Bifold Doors Work?

Aluminium bifold doors use a series of connected panels that slide along a track and fold neatly together as the doors open. This concertina-style movement allows several glazed panels to stack to one side of the opening, creating a broad, accessible connection between the home and garden. The exact configuration can be tailored to the size of the opening and how the doors need to function day to day.

Bifold Doors vs Sliding Doors

Both bifold and sliding doors are excellent choices for creating brighter, more open living spaces, but they suit slightly different priorities. Bifold doors are ideal when the goal is to create the widest possible opening, as the panels fold away and leave most of the aperture clear. Sliding doors, by comparison, usually feature larger individual panes of glass and fewer vertical frame sections, making them a strong option for customers who prioritise uninterrupted views when the doors are closed.

For homeowners and installers, the best choice depends on the property, available opening and desired look. Bifold doors offer maximum flexibility and access, while sliding doors are often better suited to panoramic views and a cleaner glazed appearance.

AluK BSF70 HI Specifications

Specification	BSF70 HI
System depth	70mm
Double glazing U-value	1.4 W/m²K*
Triple glazing U-value	1.1 W/m²K*
Glazing thickness	24mm–40mm
Maximum leaf width	1200mm
Maximum leaf height	2400mm standard / up to 3000 mm **
Maximum vent weight	100kg
Air permeability	Class 4 (600 Pa)
Water tightness	Class 9A (600 Pa)
Wind resistance	Class AE2400 (2400 Pa)
Security	PAS 24 tested & Secured by Design
Opening options	Open-in or open-out
Colour options	Single colour, dual colour, textured and anodised finishes
Threshold options	Standard, integrated and low-threshold options available

Aluminium Bifold Door Specifications

MB Frames manufactures its aluminium bifold doors using the AluK BSF70 HI system, combining slim aluminium profiles with strong thermal, weather and security performance. The system can be configured to open inwards or outwards and is available in a variety of panel arrangements, allowing installers to specify a solution around the dimensions and practical requirements of each project.

aluminium bifold doors

The BSF70 HI also features four stainless-steel rollers for smooth and consistent operation, along with a flush pop-out T-handle that allows the panels to stack neatly when fully opened. Chamfered and square bead options are available, alongside a range of hardware choices to suit different project specifications.

*U-values are based on the glazing specifications stated within the AluK technical data.
**Maximum sizes and configurations are subject to engineering, specification and individual project requirements.

Why Choose MB Frames?

MB Frames combines more than 30 years of fenestration experience with established manufacturing expertise, giving installers access to reliable aluminium bifold door solutions and knowledgeable trade support.

Using trusted AluK systems such as the BSF70 HI, we provide flexible configurations, strong thermal performance and high-security specifications to suit a wide range of projects. Our team can also support installers with product selection, technical requirements and quotations. Whether you need bifold doors for a single installation or ongoing trade supply, MB Frames offers dependable manufacture and delivery. Homeowners can also use our online tool to find their nearest installer.

Speak to MB Frames today to request a trade quote or discuss your aluminium bifold door requirements.

Black T-Pull Handle

Aluminium Bifold Door Prices

Ready to experience the ultimate in design and functionality? Our aluminium bifold doors are not just a doorway to your outdoor space but a gateway to a more spacious, secure, and serene living environment. The cost of aluminium bifold doors varies depending on factors such as overall size, number of panels, opening configuration, glazing, colour, hardware, and threshold specification. Larger openings or more complex configurations will typically require a different specification from a smaller bifold door system.

Trade customers can contact our team directly to discuss specifications and request a quote, while homeowners can use our online tool to find their nearest installer and explore suitable options for their property.

FAQs

Are aluminium bifold doors energy efficient?

Yes. MB Frames’ AluK BSF70 HI bifold doors are designed with strong thermal performance in mind. Depending on the glazing specification, the system can achieve U-values from 1.4 W/m²K with double glazing and 1.1 W/m²K with triple glazing.

How secure are aluminium bifold doors?

The AluK BSF70 HI system is PAS 24 tested and Secured by Design accredited, providing enhanced security for residential applications. The system also incorporates robust locking hardware and durable aluminium construction.

Can aluminium bifold doors open inwards or outwards?

Yes. The BSF70 HI system can be configured to open inwards or outwards, giving installers and homeowners flexibility when planning layouts around internal space, patios, and garden areas.

What sizes are available for aluminium bifold doors?

Individual BSF70 HI door leaves can be manufactured up to 1200mm wide and 2400mm high as standard, with heights of up to 3000mm possible, subject to engineering and project requirements. The overall opening size will depend on the chosen panel configuration.

Are bifold doors better than sliding doors?

The best option depends on the project. Bifold doors are ideal when the priority is a wide, open connection between indoor and outdoor spaces, while sliding doors generally offer larger uninterrupted glass panels and fewer vertical sightlines when closed.

Brochures

Name: Aluminium Bifold Doors
Brand: Mb Frames
Rating: 5 (19 reviews)

Gallery

Aluminium Bifold Doors

Aluminium Bifold Doors