Some design choices stand out because they’re of the moment. Others stand the test of time. The steel-framed doors and windows of the early 20th century are a perfect example. Their narrow sightlines, geometric glazing and industrial detailing defined an era, and they remain as desirable today as they were nearly a century ago.
The aïr 900 Bi-fold Door carries that heritage forward. Inspired by the elegance of the past but built with the technology of today, it’s a feature that balances history and innovation. The result is a door system that feels timeless, blending seamlessly into modern life while paying tribute to the designs of another age.
The origins of the steel-look style lie in factories, workshops and art deco homes where strength and slender sightlines allow for larger expanses of glass. This was a turning point in architecture, light, and openness became hallmarks of modern living.
Our aïr 900 reinterprets these ideas for contemporary homes. Its slim aluminium frames replicate the proportions of traditional steel without the weight or upkeep, offering the same sense of character while working in harmony with today’s energy standards. It’s a connection to history that still feels completely relevant.
Timeless style only endures when paired with the right materials. Where steel once limited scale and comfort, aluminium unlocks new possibilities. Our aïr 900 is precision-engineered so panels can reach up to 3 metres in height, with smooth-gliding mechanisms that make even large configurations effortless to operate.
This isn’t just a design upgrade; it’s the craft of engineering meeting the principles of design, where fine detailing and robust performance combine to create a door that is as practical as it is beautiful.
Doors are often seen as a means of entry, but the aïr 900 is more than that; it’s a feature that defines the atmosphere of your home. Slim sightlines frame views like artwork, drawing the outdoors into your living space. When open, the panels fold away to transform the mood of a room entirely, creating a sense of fluidity and ease.
This ability to shift a home’s atmosphere is what makes our heritage bi-fold doors so timeless. It isn’t tied to one way of living, instead, it enhances light, movement and space in ways that adapt to every lifestyle.
The best design isn’t just timeless in style, it’s sustainable in substance. The aïr 900 pairs thermally broken frames with high-performance glazing to help reduce energy demand, keeping warmth inside during winter and preventing overheating in summer.
And because its style is enduring, it avoids the waste that comes with trend-driven features that need to be replaced when fashions change.
Good design is often found in the details: proportions, shadow lines, symmetry. Our aïr 900 celebrates these principles. Optional astragal bar grids can be specified to suit your project, echoing the classic patterns of the past or creating a bespoke layout.
Every choice, from finish to configuration, is an opportunity to shape the architecture of your home. With a full palette of RAL colours and durable powder-coated finishes, you can decide whether the doors blend into the background or make a bold statement. This level of detailing is what transforms the aïr 900 from a product into a piece of architecture, a design element that holds its own as fashions shift.
Design trends will always evolve, but the qualities that matter most – proportion, light, comfort and craft – are constants. The aïr 900 Bi-fold Door embodies these values. By blending the industrial elegance of the past with the innovation of today, it offers a feature that feels both classic and contemporary.
That’s why it’s more than a way to open up a wall. It’s a lasting addition to your home, enriching daily life with light and atmosphere while ensuring your renovation feels as relevant in 20 years as it does today.
Discover timeless design with the aïr 900 Bi-fold Door
Talk to us, and get a quote today
Web Design by The Consultancy
