In 2025, industrial décor is firmly at the forefront of interior design. Raw materials, grid glazing and steel-look finishes are defining the look, and aluminium bi-fold doors are high on the wish list for homeowners.
While you might think this style is only suited to modern properties, our aïr 900 Heritage Bi-fold Door proves otherwise. Designed to bring the industrial look to both contemporary and traditional homes, it delivers heritage-inspired style with modern-day performance.
Industrial style works beautifully in older properties, and our aïr 900 Heritage Bi-fold Door is the perfect example. With a specifically designed steel look profile, powder-coated dark frames and astragal bar options, these doors can evoke some of the best heritage steel designs, delivering the look without the weight or upkeep of traditional steel.
Crafted from durable aluminium, our aïr 900 offers outstanding safety, thermal efficiency and minimal maintenance. This aluminium bi-fold door meets PAS 24 and Secured by Design standards for security, with high-security multi-point locking and U-values from 1.0 W/m²K – exceeding current building regulations for energy performance, so you can enjoy style without compromising on protection or performance.
Our aïr Heritage Bi-fold Door features super slim 107mm frames and narrow sightlines that echo the industrial windows of the past while staying on-trend. Large glass panels flood your home with daylight and offer panoramic views, making even smaller rooms feel open and airy.
Available in a wide range of RAL colours, you can choose a dark finish for a classic steel look or lighter shades to brighten your interior. Match your existing windows and doors for a cohesive finish or opt for contrast to make a bold statement. Either way, our steel-look heritage doors nod to the past while fitting perfectly into modern living.
Heritage doors are more than just a design feature – they’re a lifestyle upgrade. Our aïr 900 Heritage Bi-fold Door stands apart thanks to its heritage styling combined with advanced engineering.
The super slim 108mm frame creates a refined, steel-look profile that’s rarely achieved with aluminium bi-folds, and the heritage grid detailing is designed to enhance period and industrial-inspired homes alike. With panel sizes up to 1200mm wide and 3000mm high, you can achieve impressive expanses of glass with minimal frame interruption.
Engineered for real life, our aïr 900 offers exceptional weather resistance, Teflon® coated weather seals for long-lasting protection, and a durable powder-coated finish that stands up to urban, rural, or coastal environments. This is heritage style without compromise.
With so many options, it’s worth taking the time to choose a style that truly enhances your home.
Matte black and anthracite grey remain popular, while dual-colour options offer a softer interior look with a bolder exterior.
Choose from vertical, horizontal, or bespoke patterns to achieve the most authentic finish.
Our aïr 900 is available up to 14 panels wide, with options for stacking inside or outside, and the ability to include an access leaf for everyday convenience. Large panel sizes (up to 1200mm x 3000mm) allow for a dramatic look with fewer frames.
For more inspiration and a full breakdown of your configuration options, see our Bi-fold Door Buyer’s Guide.
Discover the full performance, flexibility and style of our aïr 900 Heritage Bi-fold Door. Explore the design options, see how it could transform your home, and talk to us today for a tailored quote.
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