Cortizo Bi-fold Doors
Seamless Indoor-Outdoor Living with Ultra-Slim Folding Systems.
Kingswood Aluminium introduces the Cortizo Bi-fold range—the ultimate solution for creating wide, unobstructed apertures. Engineered for smooth operation and extreme weather resistance, our bi-folding systems allow you to stack up to 14 sashes, effectively removing the barrier between your home and the garden. From the versatile standard Bi-fold to the thermally-superior Bi-fold Plus, we offer precision-crafted systems for every architectural requirement.
Choose between our two flagship folding systems, designed to balance aesthetic minimalism with technical performance.
Cortizo Bi-fold
The Versatile Standard
A highly flexible system allowing for inward or outward opening and a wide variety of configurations. With a frame depth of 73mm, it provides an excellent balance of slim sightlines and structural integrity.
Specifications:
- Max Sash Width: 1200mm
- Max Sash Height: 3000mm
- U-Value: From 1.1 (W/m²K)
Cortizo Bi-fold Plus
The High-Performance Choice
The “Plus” system is engineered for projects requiring maximum thermal insulation. It features an increased thermal break and allows for triple glazing up to 58mm, making it ideal for eco-homes and exposed locations.
Specifications:
- Thermal Break: 45mm
- Glazing: Up to 58mm
- U-Value: From 0.8 (W/m²K)
Choosing the right finish is essential for architectural harmony. Request a physical colour swatch or book a consultation to see how our textures react to natural light.
System Performance Matrix
Feature
Frame Depth
Max Sashes
Thermal Break
Air Permeability
Flush Transitions
A bi-fold is only as good as its threshold. Our Cortizo systems offer multiple bottom-track options to suit your floor build-up. We specialise in “Zero-Step” flush thresholds, where the track is recessed into the floor, allowing for a perfectly level transition from your kitchen to your patio.
For high-traffic areas, the bottom roller system is designed for longevity, using stainless steel rails that ensure the sashes glide effortlessly for decades, even with heavy triple-glazed units.
Recent Installations
Explore how our bespoke folding doors have transformed homes across Norfolk and Suffolk.
Tailor-Made Folding Systems
Your bi-fold doors are manufactured specifically for your aperture and usage requirements:
Stacking Options: Stack sashes inside or outside, all to one side or split in the middle.
Traffic Doors: Include a ‘lead door’ that operates like a standard back door for quick access without folding the whole system.
Marine-Grade: All bifold hardware is treated for high-corrosion environments near the coast.
Colour Matching: Available in over 200 RAL colours, including textured and wood-effect finishes.
Bi-fold Enquiries
Yes. We can provide a recessed track that sits flush with your internal flooring. This requires careful coordination with your builder during the floor-screeding stage.
The Cortizo system allows for up to 14 sashes in total. The maximum width for a single system can reach over 15 metres, depending on sash widths.
Absolutely. Our systems feature multi-point locking on every folding joint and high-security cylinders. They are fully tested to PAS24 standards.