Last Updated on 15 April 2025 by Tia Ellahi
Cortizo: Who are they?
Cortizo is a leading European manufacturer of premium aluminium systems, known for producing high-performance sliding doors that combine sleek design with exceptional thermal efficiency.
When it comes to upgrading your home with sleek, stylish, and high-performance sliding doors, Cortizo is a name you’ll want to remember. Whether you’re dreaming of wide open views, improved thermal efficiency, or modern design that makes your neighbours jealous, Cortizo sliding doors offer it all. In this article, I’ll walk you through everything you need to know—from product highlights to installation advice.
What’s Inside?
- Why Cortizo sliding doors are turning heads
- Cor Vision vs. 4700: key differences
- Meet the upgraded Korniche Cortizo 4700
- Benefits of Cortizo sliding doors
- FAQs
Why Cortizo Sliding Doors Are Causing a Stir
Cortizo isn’t just a door system—it’s a design statement. Originally from Spain, Cortizo UK products have grown rapidly in popularity among architects, homeowners, and developers alike. Their slimline aluminium frames and smooth glide operation are hard to match.
Whether you’re working on a modern new build, an extension, or a garden room, Cortizo aluminium sliding doors can deliver the wow-factor you’re after.
Cortizo Cor Vision vs. Cortizo 4700: What’s the Difference?
Let’s break down two of the most popular Cortizo sliding door systems:
Cortizo Cor Vision
- Sightline: As little as 20mm
- Max sash weight: 320kg
- Max height: Up to 3,000mm
- Lift & slide option available
- Ideal for panoramic views and ultra-modern homes
Cortizo 4700
- Sightline: Slim 94mm interlock
- Max sash weight: 280kg
- U-Value from just 1.3 W/m2K
- More traditional framing, still modern
- Great balance between aesthetics and budget
The Cor Vision Cortizo is your go-to if you’re after that seamless floor-to-ceiling glass look. Meanwhile, the Cortizo 4700 offers fantastic value without compromising on performance.
Introducing the Korniche Cortizo 4700 Sliding Door
Cortizo is a renowned name in sliding doors, and with Korniche’s enhancements, it’s been taken to the next level. Korniche are well respected in the industry and have won multiple accolades—most recently the 2024 King’s Award for Enterprise. By combining Cortizo’s trusted engineering with Korniche’s award-winning innovation, the 4700 has become more than just a sliding door—it’s a true statement piece for your home.
What makes it stand out?
- Patented speed-bead for faster and easier installation
- Slim 43mm interlock for even more impressive sightlines
- Discreet add-on profile for cleaner trickle vent integration
- PAS24 shootbolt locking as standard, for enhanced security
- Slimline lockable shootbolt handle for a modern, refined finish
With these upgrades, the Korniche Cortizo 4700 blends style, security, and performance seamlessly—perfect for those who want something that looks as good as it performs. for homeowners and installers alike—it’s a top-tier sliding door system, made easier.
Why Choose Cortizo Aluminium Sliding Doors?
Minimalist Aesthetics
Cortizo doors are all about clean lines. Whether you go for the ultra-slim Cor Vision or the sturdy 4700, you’re guaranteed a modern aesthetic that complements any contemporary home.
Strength & Durability
Aluminium offer the perfect combination of strength and lightness. These frames can support large panes of glass while being incredibly durable and low maintenance.
Thermal Efficiency
The advanced thermal break systems mean your home stays warm in winter and cool in summer. With U-values as low as 1.3 W/m2K, Cortizo aluminium doors are built to perform.
Smooth Operation
Thanks to high-quality rollers and precision engineering, Cortizo sliding doors glide open effortlessly—even with the largest panes.
Security Features
Multipoint locking systems and toughened glass options give you peace of mind. These doors aren’t just beautiful—they’re secure.
Customise Your Cortizo Doors
Your home is unique—and your doors should be too. With Cortizo patio doors, you can choose:
- Frame colours: From anthracite grey to white, black, and dual colours
- Glazing options: Double or triple glazing, solar control, acoustic performance
- Handle designs: Sleek, architectural, and matching your interior style
Whether you want your Cortizo aluminium doors to blend in or stand out, the options are there.
Cortizo Cor Vision Review
Our customers consistently tell us how much they love the effortless operation of the Cortizo Cor Vision sliding doors. From the moment you slide them open, you’ll notice the smooth, gliding feel that comes from expert engineering. Beyond performance, the premium build quality is often praised—these doors feel as solid as they look sleek.
Another standout feature? The glass. With individual panes reaching up to 2.5m wide by 3m tall, Cortizo Cor Vision doors offer an expansive glass area that floods your home with natural light while maintaining slim, elegant frames. It’s no wonder they’re becoming a top choice for those wanting to create stunning, light-filled living spaces.
Planning Permission & Regulations: What You Should Know
In most cases, installing Cortizo sliding doors won’t require full planning permission—especially if you’re replacing existing doors within their original opening. However, if you’re undertaking a larger extension or building a new structure, always check with your local planning authority.
The good news? Our Cortizo Cor Vision sliding doors are fully compliant with the 2022 changes to Part L of the Building Regulations in England. This means they meet the latest standards for energy efficiency, making them a smart, future-proof choice for your home.
So whether you’re building, extending or upgrading, Cortizo doors deliver top-tier performance while keeping you regulation-compliant.
Why Choose Cortizo Sliding Doors from GFD Homes
We’ve partnered with Cortizo for years, bringing their cutting-edge aluminium sliding door systems directly to UK homeowners at unbeatable value. Thanks to our close relationships with industry-leading brands, we’re able to offer a fantastic range of high-performance products at highly competitive prices.
Got questions? Our friendly GFD Homes sales team is here to help—just give us a call on 01642 309576. And don’t forget to check out our blog for more expert advice on all things home improvement.
FAQs about Cortizo Sliding Doors
What is the U value of a Cortizo sliding door?
Cortizo sliding doors offer excellent thermal performance, with U-values as low as 1.3 W/m2K depending on the glass and frame system chosen.
What is the best brand of sliding doors?
It depends on what you value most—design, performance, budget—but Cortizo ranks consistently among the top thanks to its slim sightlines, durability, and thermal performance.
What colours are Cortizo sliding doors?
Cortizo doors are available in a wide range of colours including grey, white, black, and custom dual-colour finishes.
How can I tell what brand my sliding door is?
Look for any branding on the handle, frame, or glass unit. Cortizo doors often have subtle markers or may be identifiable by their slimline frame profiles.
We don’t just sell doors – we’ve got plenty more to talk about..
- Blinds for Patio Doors: The sleekest way to style & simplify your space
- Sliding Doors vs Bifold: Which door should you choose?
- Trade Cortizo: looking for trade prices? Visit our trade site, The Trade Village.
