Cortizo Sliding Patio Doors
Norfolk & Suffolk’s Specialists in Ultra-Slim Architectural Glazing.
Kingswood Aluminium is proud to offer the definitive range of Cortizo sliding systems. As architectural trends move towards larger expanses of glass and thinner frames, our sliding systems provide the perfect balance of aesthetic minimalism and high-performance engineering. From the coastal winds of Suffolk to contemporary new-builds in Norfolk, our doors are tested to exceed the most stringent weather and security standards.
Discover the differences between our three core Cortizo sliding models, each designed for specific architectural requirements.
COR Vision Sliding
The Modern Classic
The COR Vision is the go-to system for residential projects seeking a true slimline look. With a visible interlock of just 20mm, it allows for a glass surface area of up to 91%, ensuring your view remains the focus.
Specifications:
Max Sash Weight: 320kg
Interlock Width: 20mm
U-Value: From 1.3 (W/m²K)
Download COR Vision Brochure
COR Vision Plus
Grand Scale Glazing
The COR Vision is the go-to system for residential projects seeking a true slimline look. With a visible interlock of just 20mm, it allows for a glass surface area of up to 91%, ensuring your view remains the focus.
Specifications:
Max Sash Weight: 700kg (Motor)
Interlock Width: 25mm
U-Value: From 1.1 (W/m²K)
Download COR Plus Brochure
4700 Sliding System
Reliable Versatility
The COR Vision is the go-to system for residential projects seeking a true slimline look. With a visible interlock of just 20mm, it allows for a glass surface area of up to 91%, ensuring your view remains the focus.
Specifications:
Max Sash Weight: 280kg
Interlock Width: 47mm
U-Value: From 1.5 (W/m²K)
Download 4700 BrochureChoosing 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 Comparison
Feature
Visible Interlock
Max Glass Thickness
Max Sash Height
Motorisation
Thermal Break
Acoustic Insulation
Zero-Threshold Living
One of the defining features of a Kingswood-installed Cortizo system is the ability to achieve a seamless floor level. By utilising our Concealed Drainage and Flush Threshold technology, we can install your doors so that the internal floor and external patio meet at the exact same level.
This not only creates a stunning “infinity” look but also removes trip hazards, making your home more accessible and merging your indoor and outdoor living zones into one continuous space.
Gallery & Inspiration
Explore our portfolio of Cortizo Sliding Door installations across Norfolk and Suffolk. From modern waterfront homes to rural barn conversions.
Sustainable Efficiency
Cortizo aluminium is not only high-performing but also sustainable. Aluminium is 100% recyclable without losing its properties. Our systems feature advanced thermal breaks and high-spec gaskets to ensure that while you enjoy maximum light, you maintain minimum heat loss.
Every sliding system we install is designed to meet or exceed current UK Building Regulations, keeping your home warm in the winter and cool in the summer.
Tailored to Your Vision
We believe that every home has a unique character. That’s why we offer a limitless range of customisation options for your sliding doors:
RAL Colours: Choose from the full spectrum of RAL colours, including textured and matte powder-coated finishes.
Dual Colour: Want black frames outside to match your cladding, but white inside to match your walls? We offer dual-colour profiles as standard.
Hardware: Selection of minimalist handles in various finishes, from brushed steel to custom RAL-matched colours.
Glass: High-performance solar-control glass, acoustic glazing for road noise reduction, and triple-glazing options for the ultimate in thermal efficiency.
Our SeamlessProcess
01. Consultation
We discuss your architectural goals, site conditions, and budget to recommend the right Cortizo system.
02. Survey
Our expert surveyors take precise measurements and check threshold levels for a perfect fit.
03. Fabrication
Your doors are precision-engineered to your exact colour and hardware specifications.
04. Installation
Our specialist teams install your doors, ensuring smooth operation and perfect weather sealing.
Common Enquiries
In the architectural world, this is called the “interlock.” For the COR Vision system, this interlock is incredibly thin—just 20mm. This is one of the slimmest profiles on the market today.
Yes. Aluminium is naturally resistant to salt-water corrosion. Furthermore, our Cortizo systems are powder-coated to marine-grade standards and feature EPDM gaskets that are designed to withstand high-velocity wind and rain common in Norfolk and Suffolk coastal regions.
Absolutely. We work closely with builders, developers, and local installers. We provide full technical drawings and delivery across the East of England.