Alunet Bi-fold Doors
- Exceptional functionality with smooth operation
- Excellent insulation reducing energy costs
- Hardware selections for every style and need
Cortizo 120 aluminium bi-fold doors set new standards for slim frames and smooth operation in the modern bi-folding door market.
At just 120mm, our slim sightlines create unobstructed views and maximise natural light flooding into your living space.
Precision-engineered with a stainless steel running system, these folding doors deliver smooth operation that feels luxurious with every use.
Choose the number of panels and opening configuration to suit your space, from compact patio doors to expansive concertina style installations.
Thermally broken frames and optional triple glazing boost insulation, reducing energy costs and ensuring comfortable, seamless spaces year-round.
Cortizo 120 bi-fold doors come in an extensive range of colour options to perfectly complement your home. Choose from our wide range of colours or select dual colours for contrasting interior and exterior finishes.
Anthracite Grey
White
Dark Grey
Dark Blue
Cream
Brown
Black
All Cortizo 120 doors feature high-quality double glazing as standard, with triple glazing available for enhanced thermal efficiency.
Experience Cortizo120 bi-fold doors at our Huddersfield or Leeds showroom. Feel the smooth operation, see the slim sightlines, and discuss how this modern bi-folding door system can transform your outdoor living spaces.
Explore completed installations featuring our flagship Cortizo 120 system and see the variety of configurations and practical benefits delivered across different properties and home improvement projects.
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Common questions about Cortizo 120 aluminium bi-fold doors answered.
Find out moreThe Cortizo 120 features super slim sightlines of just 120mm, creating unobstructed views while maintaining structural strength. Combined with smooth operation, triple glazing options, and minimal maintenance requirements, it's the best option for contemporary bi-fold installations.
The number of panels depends on your opening width and configuration preference. Our team advises on the optimal variety of configurations during survey, ensuring you achieve the seamless transition and easy access you need for your space.
Yes, these bi-fold doors achieve excellent energy efficiency with U-values as low as 1.4 W/m²K with double glazing. Triple glazing provides even better performance, reducing energy consumption significantly while providing good insulation year-round for comfortable living.
No, these aluminium doors require minimal maintenance. The concertina style mechanism and stainless steel running system ensure reliable, smooth operation with just occasional cleaning. Unlike timber, there's no painting or treatment required – a valuable addition with long-term practical benefits.
Absolutely! Visit our Leeds or Huddersfield showroom to see Cortizo120 doors operating. Experience the effortless operation, see the range of colours, and discuss how these folding doors create the perfect seamless link for your outdoor living space.
Every Cortizo 120 aluminium bi-fold door is designed and manufactured at our Huddersfield facility, ensuring complete quality control. This modern bi-folding door system represents years of refinement, combining slim frames with robust engineering for exceptional performance.
Whether you need a compact fold door or extensive coverage for larger outdoor spaces, we create the perfect seamless transition. The Cortizo120 is a valuable addition to any home, delivering practical benefits alongside stunning aesthetics.
ClearView provides comprehensive installation services for bi-fold doors throughout Yorkshire. Our experienced teams ensure a perfect fit, achieving the effortless operation these doors are known for. From survey through to final commissioning, we manage every detail of your project.
Visit our Leeds or Huddersfield showroom to start your project, and discover why these folding doors are such a valuable addition to properties across the region.
Discover our full range of high-quality, British-manufactured windows and doors. Our brochure details our bi-folding doors, sliding doors, windows, and more, all designed for superior aesthetics and energy efficiency.
Download our brochure
With two showrooms in Huddersfield and Leeds, we offer a wide range of styles to suit new windows and doors, as well as extension projects.
Proudly made in Yorkshire for superior quality
Survey, manufacture and installation all under one roof
One point of contact throughout your journey
Complete peace of mind on every product