Last Updated on 1 October 2025 by Team GFD
Sliding patio doors in 2025 — compare Smart, Korniche, and Cortizo systems. Discover the best sliding patio door for your home with expert advice.
What You’ll Learn:
- How Smart Visoglide Plus balances value and performance
- Why Cortizo 4700 by Korniche sets the standard for modern family homes
- What makes Cor Vision the ultimate luxury sliding patio door system
- Key differences in sightlines, efficiency, and cost across all sliding patio door
(Estimated Reading Time: 5-6 Minutes)
Introduction
If you’re planning a renovation or extension, sliding patio doors are one of the best ways to open up your space, bring in natural light, and connect your home to the garden. At GFD Homes, we offer three premium systems — Smart Visoglide Plus, Cortizo 4700 by Korniche, and Cortizo Cor Vision — each designed with its own unique strengths.
While all three will give you a sleek, modern look, the differences in sightlines, thermal performance, and price point matter when choosing the right sliding patio door for your project.
What are the differences between aluminium sliding patio doors?
If you’re comparing slimline aluminium sliding doors like Smart Visoglide Plus, Cortizo 4700 by Korniche, or Cortizo Cor Vision, it’s important to understand how they differ in performance, design, sightlines, and budget. This guide explains the unique benefits of each sliding patio door system offered at GFD Homes – so you can choose the right one for your space, style and lifestyle.
If you’re planning a renovation or extension, aluminium sliding patio doors are one of the best ways to open up your space, bring in natural light, and create seamless garden views.
But with multiple premium options to choose from, how do you know which sliding door system is right for you?
At GFD Homes, we only offer systems we trust – each one designed to deliver style, performance, and lasting quality. While they’ll all give you that contemporary, open-plan look, each product comes with its own strengths depending on what you value most – whether it’s ultra-slim sightlines, enhanced security, smooth operation, or architectural styling.
In this guide, we break down the key differences between:
Smart Visoglide Plus Sliding Patio Doors
Efficient. Stylish. Well-priced.
Smart Visoglide Plus is a reliable, stylish, and cost-effective aluminium sliding door system – perfect for everyday homeowners wanting high performance without breaking the bank.
🔍 Key Features:
- Smooth sliding operation with high-performance rollers
- 2 or 3-track options for wider openings
- Double or triple glazing up to 38mm
- U-values as low as 1.6 W/m²K
- Sleek profiles with slim 35mm – 83mm sightlines (depending on configuration)
- PAS 24 compliant security
✅ Best For:
Homeowners seeking a trusted, affordable sliding door that still looks the part and performs reliably. A great all-rounder for everyday homes and extensions.
👉 View Smart Visoglide Plus Range
Cortizo 4700 Sliding Patio Doors by Korniche
Premium engineering meets everyday practicality.
Cortizo 4700 is a market-leading sliding system, made even better by Korniche’s proprietary innovations. It blends strong Spanish engineering with British design upgrades for enhanced aesthetics, security, and performance.
Key Features:
- Ultra-smooth SpeedBead clip-in glazing system for fast installation
- 47mm central interlock for stunning slimline sightlines
- PAS 24:2022 security with anti-backdrive shootbolt locks
- Korniche trickle vent system integrated neatly into the frame
- U-values from 1.3 W/m²K
- Up to 2500mm sash width, 6400mm overall frame width
- Double or triple-glazing compatible
Best For:
Customers wanting best-in-class security, efficiency and aesthetics in a modern package – without stepping into fully architectural pricing.
👉 Explore the Korniche Cortizo 4700 Door
Cortizo Cor Vision Sliding Patio Doors
Architectural luxury. Ultra-slim sightlines. Minimalist perfection.
Cor Vision is Cortizo’s flagship minimalist sliding system – designed for spaces where clean lines and uninterrupted views are the priority. It offers the slimmest possible sightlines of any system we offer.
Key Features:
- Exceptionally slim sightlines – as little as 20mm central interlock
- Hidden frame options – only the glass is visible from some angles
- Can be motorised for effortless opening
- Compatible with fixed glazing for “glass wall” effect
- Multiple configuration options for luxury builds
- Designed for maximum light, minimum frame
Best For:
Architectural homes, high-end extensions, or anyone wanting a statement sliding door with the most glass and least frame. If you want it to feel like the wall disappears – this is it.
👉 View Cortizo Cor Vision Sliding Doors
Sliding Patio Doors Quick Comparison Table
| Feature | Smart Visoglide Plus | Cortizo 4700 by Korniche | Cortizo Cor Vision |
|---|---|---|---|
| Sightlines | 35–83mm | 47mm central interlock | As little as 20mm |
| Max Sash Width | ~1500mm | 2500mm | 2500mm+ (config. dependent) |
| Security Rating | PAS 24 | PAS 24:2022 + Anti-backdrive | PAS 24 capable |
| Thermal Performance | From 1.6 W/m²K | From 1.3 W/m²K | From ~1.3 W/m²K |
| Ideal For | Standard homes, extensions | High-performance family homes | Luxury builds, modernists |
| Price Point | From £1,943 | £POA | From £3,226 |
Final Thoughts
You can’t go wrong with any of the sliding systems we offer – they’re all tested, secure, and built to last. The real question is: what matters most to you?
- Want maximum light and ultra-modern design? Go Cor Vision.
- Need performance, value, and serious security? Go Cortizo 4700 by Korniche.
- Looking for a reliable, great-looking door without the premium price tag? Visoglide Plus is your friend.
And remember – whichever you choose, our team is here to guide you through measuring, options, delivery, or full installation.
We offer a full range of sliding door systems at GFD Homes.
🛒 Browse the full collection at www.gfdhomes.co.uk.
📞 Or call 01642 309576 for expert guidance and a no-pressure quote.
In a rush? Why not contact us via Whatsapp
Browse our Articles
- Expert Home Improvement Advice: Real Answers to Your Top Questions
- uPVC Sliding Patio Doors: Why Aluminium Is the Better Option for Long-Term Investment
- Cortizo: The Aluminium Sliding Door System Everyone’s Talking About
- Trade Sliding Patio Doors: looking for trade prices? Visit our trade site, The Trade Village
Frequently Asked Questions
What’s the difference between sliding, bi-fold and French doors?
Sliding patio doors open by gliding along a track, giving you wide, uninterrupted views with minimal frame. Bifolds fold and stack to one side for a fully open wall effect, while French doors swing open on hinges and suit smaller spaces.
Can I get a flush threshold with my sliding doors?
Yes. Many of our sliding patio door systems can be specified with a low or flush threshold, creating a seamless flow between indoors and outdoors — perfect for step-free living or garden entertaining.
Which sliding patio doors are best for energy efficiency?
Both the Cortizo 4700 and Cor Vision sliding patio doors deliver excellent U-values thanks to their advanced aluminium frames and glazing options. Smart Visoglide Plus is also a strong performer for everyday homes.
Are all your sliding patio doors made to measure?
Yes — every sliding patio door we supply is bespoke. You can choose the size, colour, glazing, track options and hardware, ensuring the doors fit perfectly with your home.
Can I have integral blinds fitted in sliding patio doors?
Absolutely. Many of our sliding patio doors are compatible with integral blinds — a stylish, low-maintenance upgrade that offers privacy and shade without the need for curtains.
