Interior design evolves, but some upgrades have the rare ability to work across styles and stand the test of time. The bi-fold door is one of them. More than just a way to open up a room, a well-designed bi-fold system becomes part of the architecture itself, framing views, shaping light, and creating fluid transitions between indoors and out.
The aïr 900 Bi-fold Door has been engineered with this versatility in mind. Whether your project calls for an industrial edge, a heritage feel or a minimalist finish, its steel-look detailing, slim sightlines, and wide range of design options make it a feature that adapts seamlessly to every trend.
Minimalism has dominated interiors for over a decade, and its appeal shows no signs of fading. At the heart of this style is simplicity, with uninterrupted surfaces, neutral tones and an emphasis on natural light.
Our aïr 900 Bi-fold Door complements minimalist homes with its slim aluminium frames and large glass panels that almost dissolve into the background. When closed, the narrow sightlines allow views and daylight to take centre stage. When open, entire walls fold away to blur the line between home and garden.
Available in subtle neutral finishes, the door integrates effortlessly into pared-back schemes, delivering functionality without interrupting the clean design that defines modern minimalism.
Exposed brick, concrete textures and metal accents are hallmarks of the industrial trend. But authentic steel doors, while iconic, often come with practical compromises including weight, maintenance and limited thermal efficiency.
Our aïr 900 is designed to capture the look without the drawbacks. With a choice of heritage-inspired grid designs, powder-coated dark frames and astragal bar options, it offers the same striking visual as traditional steel doors. Yet, crafted from aluminium, it’s lighter, more durable and far better performing.
The result? An industrial look that feels authentic, while delivering the security, weather protection, and insulation modern homes require.
Not every renovation calls for a contemporary finish. Period homes, cottages and conversions often demand features that echo their history. The challenge is achieving heritage character without sacrificing the benefits of today’s engineering.
Our aluminium bi-fold door bridges this gap. With frame options that replicate the steel windows of the past, combined with modern aluminium performance, it works beautifully in heritage-inspired spaces. The doors can be specified in classic finishes such as black or anthracite grey to blend with traditional exteriors, while offering advanced thermal efficiency with U-values from 1.0 W/m²K and security that meets PAS 24 standards.
It’s a perfect example of how design and technology can complement rather than compete with one another.
For many homeowners, an extension is the biggest design project they’ll undertake. Here, glazing choices often define the finished look. Our aïr 900 Bi-fold Door delivers the flexibility needed to create a bold architectural statement.
With panel sizes up to 1200mm wide and 3000mm high, you can achieve dramatic expanses of glass that few other systems allow. Configurations stretch up to 14 panels wide, meaning it’s possible to open entire elevations of a home in one smooth motion. Access leaves can also be included for day-to-day convenience, so you don’t need to fold back every panel to step outside.
This adaptability is why the aïr 900 is as popular with architects designing high-end contemporary projects as it is with homeowners extending period properties.
Design trends are as much about finish as they are about form. Our aluminium bi-fold doors offer a full spectrum of RAL colours, giving you freedom to tailor the system to your style.
Because the doors are powder-coated, the finish is as durable as it is stylish, withstanding coastal, rural or urban environments without fading or peeling.
Whichever design trend you follow, performance matters. The aïr 900 Bi-fold Door is engineered for everyday use and long-term peace of mind:
This combination of form and function means the aïr 900 isn’t just a design choice, it’s a lifestyle upgrade designed for real homes.
Trends may shift, but the qualities homeowners value the most remain the same. Light, connection, performance and style, the aïr 900 delivers on all of them – adapting its appearance to suit every design language while maintaining the same high standard of engineering. That’s what makes it more than a door; it’s an architectural feature that defines your renovation today, and continues to add value tomorrow.
Explore how this design-led system could work for your project. From heritage-inspired schemes to cutting-edge extensions, the aïr 900 is built to enhance every trend.
Explore the aïr 900 Bi-fold Door
Talk to us for a tailored quote
Web Design by The Consultancy
