Cortizo Cor Vision Slider

Cortizo COR Vision Sliding Doors | Ultra Slim Aluminium Slider UK | The Fenestration Network

20mm Sightlines

Cortizo COR Vision Sliding Doors | Ultra Slim Aluminium Slider UK – national supply, survey and installation

projects@thefenestrationnetwork.co.uk

Transform your home or commercial project with the

Cortizo COR Vision

sliding door system — combining minimal sightlines, high performance, and architectural flexibility.

What Is the Cortizo COR Vision Slider?

is a premium aluminium sliding door system engineered for maximum glazed area and minimal visible frame. It’s designed to push boundaries in both aesthetics and performance.

Key system variants include the standard COR Vision and the

COR Vision Plus

edition, offering enhanced performance and glazing options.

Call us to discuss your project

Key Features & Technical Specifications

Slim sightline (interlock) –

between sliding panels in standard COR Vision

Glazing capacity –

in standard variant

Maximum sash dimensions –

2,500 mm (width) × 3,000 mm (height)

Maximum sash weight –

for manual system

Performance (U-value, thermal / acoustic) –

The system achieves U-values ~1.3 W/m²K in standard double glazing setups

Wind / Water / Air rating –

High resistance to water, wind loads and air permeability (e.g. EN standards)

Design flexibility –

Supports corner sliders without mullions, embedded (in-wall) frames, pocket systems

Finish & colour –

Wide choice: powder coated by RAL, textured / mottled, dual colour options, wood-effect or anodised finishes

Email us to discuss your project

Why Choose COR Vision Sliding Doors?

Maximum light & minimal frame

— more than 90% of the aperture can be glass with slimline 20 mm interlocks

Architectural freedom

— corner sliders, pocketing, embedded frames give striking design options

Strong & stable

— supports large sashes with high weight capacity

Thermal & acoustic integrity

— performs well in insulation and noise reduction

Seamless indoor-outdoor flow

— ideal for modern glazed extensions, patios, and large openings

Customisable finishes & aesthetics

— match with interior / exterior schemes

COR Vision vs COR Vision Plus

variant brings upgraded capabilities:

Increased glazing thickness (up to ~54 mm) and triple glazing options

Slightly larger visible frame element (≈ 25 mm) for enhanced structural performance

Higher maximum sash weight and motorised opening options

More advanced thermal & acoustic performance, ideal for larger spans and premium projects

Cortizo COR Vision Slider — Supplied & Installed Across the UK

We supply and install the Cortizo COR Vision Slider system nationwide. Whether you’re planning a sleek modern sliding door for your property, upgrading your glazing, or opening up an entire elevation, our expert survey & installation teams cover all major UK regions with precision and attention to detail.

South & South East

Cortizo COR Vision Slider London, Kent, Surrey, Sussex, Hampshire, Southampton, Home Counties and Essex.

From London town-houses to coastal homes in Sussex, our South & South East installation team handles everything — from specification to installation and aftercare for the COR Vision Slider.

South West & West

Cortizo COR Vision Slider Devon, Bristol and Gloucester.

In the South West region we bring the COR Vision Slider system to modern extensions, barn‐conversions and contemporary homes — full supply, installation, finishing and support.

Midlands & Central

Cortizo COR Vision Slider Birmingham, The Midlands, Northamptonshire, Nottinghamshire, Leicestershire, Derbyshire and Lincolnshire.

Our central England network provides efficient lead times, accurate site surveys and professional installation of the COR Vision Slider across both residential and commercial projects.

Cortizo COR Vision Slider Greater Manchester, Manchester, Lancashire, Liverpool, Cheshire, Cumbria and Carlisle.

Serving the North West, our teams work across urban apartments, countryside houses and large scale renovations — we supply and fit the COR Vision Slider with high-quality finishes and strong regional knowledge.

Yorkshire & North East

Cortizo COR Vision Slider Yorkshire, Newcastle and the North East.

Whether you are renovating a Yorkshire home or developing in the North East region, we bring you the COR Vision Slider system with full design support, hardware choices and installation expertise.

The Fenestration Network place picture
4.8
Based on 23 reviews
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Caera Mahoney profile pictureCaera Mahoney
19:17 05 Dec 25
We were originally going to order our patio doors supply only and get our builders to fit them, but after reading some of the advice from Nick at doorandwindowexperts we realised it was too big a risk for such an important and expensive purchase. Nick recommended Tom at The Fenestration Network and from the very first contact we felt really looked after; no question/query was too much trouble and we received a truly individual service. We opted for the full survey, supply and fit even through it stretched our budget and I'm glad we did. The communication was great, the lead time was reasonable and the fitters were really lovely. We are very happy with our new doors! 😊
Simon Bates profile pictureSimon Bates
08:46 02 Dec 25
Fantastic service from start to finish Tom was great to deal with along with the Survey meeting the lads before they started to double check everything. The fitting team turned up on time today with the delivery also was almost finished for 11 o’clock very impressive., Considering the size of the units and the Power needed to do this job was very difficult and had to be thought out and planned correctly they nailed it, the trimming and silicone’s skills were second to none . Will look forward to using this business again for any window door installation , large profile glass installation.Etc
tracy wake profile picturetracy wake
17:44 14 Oct 25
Great company to deal with professional and extremely knowledgeable exactly what we as the supplier and the end user (customer) needs
Allan Barker profile pictureAllan Barker
18:18 10 Oct 25
Fenestration network have supplied and fitted some top class bi-fold doors in our extension project.
A clear payment plan which is in line with all top window/door suppliers
Good communications throughout the process
The company was found with assistance of an online expert who is keen to advise on reliable, expert supply and fit companies at a reasonable price, not expensive like some other companies I visited.
If you have a building project I would recommend Fenestration Network, make contact and speak with Tom.
They will be able to advise on different types of doors depending on your requirements.
I would highly recommend you contact Febestration Network for stunning, top quality, High end doors.
Matthew Hall profile pictureMatthew Hall
16:25 01 Oct 25
I have really enjoyed working with The Fenestration Network. Every job I have been involved in has been exactly as described, with the team always being friendly and professional. When I have been on site to capture footage of properties with new glass and glazing supplied by them, the installations have looked amazing both in person and on camera.

Customers I have spoken to while on site have also told me how impressed they are with the quality of the products and services provided by The Fenestration Network.

From a drone filming and marketing perspective, the aluminium glazing products, windows, doors, and bi-folds have been fantastic. They come in a wide range of colours, which not only gives each home a unique look that perfectly matches and complements the property, but also makes the promotional videos stand out with variety and style.

The Fenestration Network clearly delivers exactly what their customers want, both in quality and in choice.
Paul Craddock profile picturePaul Craddock
11:37 19 Sep 25
We had windows and doors supplied and fitted by Tom and his team and apart from their prices being very competitive, the quality, look and service was excellent. To add to this, Tom gave us a discount for allowing him to have a drone take pictures which will happen once all the rendering is finished. I would highly recommend them to anyone. Thank you Tom and the team
Robert Knight profile pictureRobert Knight
10:21 29 Aug 25
I contacted Tom Evans of The Fenestration Network for my recent, significant, aluminium window supply and install project. I found Tom easy to work with and thorough on endeavouring to get everything right before the project started. There was no pressure to rush things, but he was quick to action anything needed. The installation team he used in my area of the country was polite, hard working and personable. Overall, I valued his high personal integrity displayed thoughout the project.
Stuart Wilson profile pictureStuart Wilson
08:10 15 Aug 25
From the first contact with Tom from the Fenestration Network they were very professional and very responsive.. They had been passed our project idea and I gave approximate sizes for bi-fold doors/windows for our outside terrace…

We wanted to fully enclose it, within 48 hours Tom came back to me with a priced quote which was exceptional…. Full detailed drawings of each view suggesting top openers on one side…. My experience has been first class, I have previously been in the Architectural industry for 12 years manufacturing these type of products and was impressed how this company worked.

I agreed the price and within 1 week Tom had arranged for a site survey to finalise the dimensions…. The installation team that Tom used for the survey and installation were very good and very keen to do a fantastic job, the 2 guys (Matt & Gary) couldn’t do enough for us.

The end product was a great addition you our property giving us a fantastic room which we can use all year round.

I would have no reservations in recommending this company for any projects you are planning in the future…

See attached video of the finished project.
Matthew profile pictureMatthew
15:19 13 Aug 25
Excellent from start to finish very professional company to deal with and great products
Bradley Roberts profile pictureBradley Roberts
12:14 08 Jul 25
We used The Fenestration Network for the replacement and installation of all our windows and patio doors as part of our renovations. We ran into some difficulties during the installation but the team were dedicated to getting us back on track! Would recommend to others looking for window and door installers.
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