Buying Cortizo Sliding Doors

Cortizo Sliding doors offer modern patio doors designed with the latest technology, engineering and slim sightlines. However, buying Cortizo products in the UK can confuse the homeowner as well as the installer. In this article, we provide information and a review about Cortizo as a system as well as their range of sliding doors.

Buying Cortizo Sliding Doors

Information about Cortizo Sliding Doors

Cortizo is a substantial systems company. The Cortizo name is very well known, especially in Europe and globally. The entire product range covers not just sliding doors. You will also find windows, residential doors, curtain walling and panel systems. Also available are balustrades and even PVCu products.

For sliding doors, there are 12 different models, although just two are widely available for homeowners and installers. These are the Cor-vision Sliding door and the Cor-Vision Plus sliding door. More recently, the Cortizo 4700 offers a more conventional styling alongside Origin, Smart Systems and Aluk sliding doors, but with a better brand perception.

Both the Cortizo Cor-Vision and Cor-Vision plus models use the structurally bonded method of upper-tier sliding doors. The bonded glass and the slim interlock are two features making Cortizo doors popular. Another is their contemporary look and the many ways to customise them.

Generally, these cutting-edge doors come only as an inline sliding door without a lift and slide option. You also get insulated aluminium profiles, a durable powder-coated finish and quality locking systems.

Where you can use Cor-Vision sliding doors

You will find these doors mainly marketed at the new extension market. However, we’ve seen many installations of these doors, replacing old patio doors.

As a result, these doors are ideal for both replacement and new projects. Their slim lines, low thresholds, square and modern appearance make these suitable if you want a minimalist and latest-generation product.

With two up to six panels, depending on the configuration, these fine European doors work well in both modern or traditional houses. Cortizo doors also have the option for a recessed track or low threshold that you can integrate into a new extension.

Understanding Cortizo sliding doors

Finding information about Cortizo doors is difficult when trying to obtain consistent information about the product. The reason for this is that many major manufacturers use the Cortizo system but rebrand it. The number of suppliers selling this brand under a different name appears to outnumber those selling as Cortizo doors.

Some installers you talk to will give the impression it’s their own system and will not declare they’re using Cortizo. In most cases it’s not. But get in touch and we can confirm this where we know. For most people the giveaway is the handle, instantly identifying these as Cortizo sliding doors.

Cortizo sliding doors rebranded.

Here are just some popular brand names all using the same Cortizo sliding door but rebranded:

  • Origin Global with their OS-20 Artisan Sliding Door.
  • Arkay Windows using the Infiniglide name.
  • Architectural Vision Systems using several Cortizo products.
  • Slimline Aluminium under the SL20 Classic range.
  • Perfect Crystal using the PC20.
  • Home Hub Group using the Serenity brand name.
  • Sieger Systems with their Slim Sliding Door
  • DWL Slimline 20 Sliding
  • Everglade Windows selling the Air 20 SL product.

There is nothing wrong with buying a rebranded Cortizo slider. Origin, Everglade and Arkay Windows are just three examples of excellent aluminium manufacturers making these doors under their own quality systems and producing expertly crafted sliders. They offer a different set of personalisation options. We also know companies such as Architectural Vision Systems offering a steel-look version of the Cortizo door.

Skyglaze in Surrey was the first company to introduce Cortizo Cor-Vision doors to the UK. They’ve also done substantial and noteworthy work helping Cortizo develop the product better in the UK.

Therefore, and as with any substantial investment in glazing, do your research or contact us for help and advice. What you will get with Cortizo Sliding Doors are exceptional sliders and a contemporary, highly-engineered product. The slim lines, quality glass and excellent components create a door of excellent proportions with smooth slide action.

Finally, the 20mm interlock and slimline sliding doors remain heavily marketed. Remember it’s only two or three panel doors truly benefitting from a slim mullion. Four panel doors meeting in the middle always look thicker.

Cor-Vision Sliding Doors.

The Cor-Vision product is more popular. First of all, is the slimline 20mm mullion – arguably its best feature. Available from one up to six sashes and with single, double or triple tracks, the Cor-Vision provides a slimline sliding door for most residential projects. There is also an open corner version. Also, with the design, it’s possible to fix these doors giving a near frameless appearance. For new extensions, these doors can also slide into a wall pocket, disappearing when fully opened.

For door sizes, these doors go up to around 2.5m wide and up to 3m high. While these are the stated figures, some manufacturers offer these or reduced sizes. The reasons for this vary but mainly down to handling, transport or cost. Generally, this model goes up to 320kg, enough for most patio door sizes.

You will find this door typically double glazed with laminated or toughened safety glass. With glass thicknesses up to 30mm, these doors only come double glazed. Triple glazed requirements mean moving to the Plus model.

With most models of the Cor-Vision, you get a five-point lock integrated within a recessed handle. All doors come tested and designed by Cortizo for the suitable air, wind and water weather ratings.

The Cor-Vision Plus sliding door

The Plus version is broadly the same but differs in several areas. First of all, is the mullion. At 25mm it’s slightly thicker but a small difference bearing in mind the large sizes used for most patio doors. The profile thickness of the doors is greater too, for structural integrity as this door comes capable of much bigger sizes.

Then you get the glass up to 54mm thick, meaning triple glazing options when needed.

It comes with the same number of panel options. Tracks are limited to one or three. This means you get the option of a single slider and fixed pane, three and four panel options. You also get the same five-point lock. This model also offers an automatic sliding action when used with suitable automatic door gearing. This version is really only suitable for new extensions. The automatic gearing needs concealing in the structure above with most automatic versions.

Technically, the Cor-Vision Plus goes wider and taller and with greater weight capability. Individual sliding panels go up to 4m wide and 4m tall with a maximum weight of up to 400kg.

Security on Cortizo products

This is where you need to do your research carefully. The Cortizo website doesn’t mention any specific security tests for this door. Now, this does not mean your new Cortizo product is easy to break into. And we’ve never heard of anyone doing so up to now.

We’ve also done a search on the Secured by Design Website and there’s no mention of the manufacturers we know having an SBD license for the product. Our advice to you is to speak to whoever is quoting you. Ask specifically about their product rather than the Cortizo system generally.

Most of the suppliers we’ve checked out offer their doors with the standard Cortizo lock enhanced with a high security cylinder.

Colour Options with Cortizo

Once again, we stress that every Cortizo sliding door supplier probably offers different colour and personalisation options. For instance, Origin only offers the same colour inside and out. Other suppliers may offer dual colours, anodised and even wood-effect finishes.

However, every door should come with a certified and guaranteed powder coated finish, applied to the relevant industry standards.

Cortizo sliding doors

Buying Cortizo sliding doors.

Before discussing where to buy Cortizo sliders, ensure your chosen installer has the necessary expertise with these product. The installation of these doors is not easy. While the homeowner probably won’t care much as product complexity, they will when the product doesn’t operate correctly.

Precise and expert installation are absolutely essential to the long-term reliability of large, structurally bonded and slimline glazing systems. These are not easy doors to work with for the installer and do check out your chosen firm has the training and expertise with these doors. And our advice is also to avoid buying these on a supply only basis. We also advise fitting a builder or general installer.

You will find Cortizo sliding doors available through many different professional suppliers and installers. To help you buy these doors correctly, we must again stress that you won’t find a ‘standard specification’ product – as so many versions and brand names of this door exist. However, we list below some things to consider and questions to ask of your Cortizo sliding doors provider.

Checklist helping you with Cortizo doors

Check what locking systems, door cylinders and handles come with your doors.

Cills and accessories, as well as ancillary profiles, may vary from supplier to supplier.

For new build extensions and renovations, establish whether a trickle vent is available – not every door comes with this option.

Remember the full choice of colour options won’t be available with every product.

There is nothing wrong with buying a door under a different name. Most professional suppliers will happily declare it’s a Cortizo System.

Guarantees on these doors vary from supplier to supplier.

The low or flush threshold comes with these doors but check with the supplier for drainage of water.

We love these products and suggest you consider them alongside other modern patio doors. However, just like all structurally bonded doors, they differ from conventional sliders where the glass goes in the door at the property. These doors must be factory glazed as part of their production process.

Well made and correctly installed, you’ll benefit from minimal aluminium profiles, expansive glass panels, lots of natural light and a great new living or kitchen space. You can also contact us for more information and where to buy these sliding doors in your area. Use our contact form and get in touch today.

Alternatives to Cortizo Sliding Doors

The market for slimline sliding doors is varied, but Cortizo does dominate the market somewhat under the many different brands it’s sold under.

For those wanting an alternative, we recommend taking a look at the following alternative and in some cases better options. Some of these are more expensive and our suggestions here are not about price.

sunflex SVG20 sliding doors

Sunflex SVG20.

There are numerous reasons why the Sunflex SVG20 sliding door is another solution to a Cortizo and a better one technically and aesthetically. Slim looks with none of the complexity.

First of all it’s substantially slimmer front to back. You get the same 20mm face dimension on the mullion with none of the protrusion as you look at the mullion from the side. Overall the door set is slimmer as a unit, front to back whether you go with a double or triple track solution.

Another advantage is a much simpler construction and design. These doors are structurally bonded at the mullion only, easily done on site by the Sunflex installer.

Another significant benefit of these is the option for lift and slide opening, pocket sliding doors, open corner and steel-styled. Their icing on the cake is their ability to also stack open completely flush. Brilliant doors all round.

Sunvista Sliding Doors

Using the same bonded design, Sunvista sliders are slightly slimmer but better designed. Neater stacking, a better threshold that doesn’t gather as much dirt, open corner, pocket sliding and a wonderful steel-look option. These doors technically are more advanced in our view and visually sleeker and more attractive than Cortizo. Of course, aesthetics are subjective.

Cero sliding doors by Solarlux

Cero sliding doors by Solarlux

The engineering and design of Solarlux Cero Sliding Door makes it one of the best sliders. Phenomenal design, engineering, sliding action and it looks simply stunning. Made in Germany and available through Solarlux dealers, its price won’t be for everyone. And it’s only suitable for new openings rather than replacement door projects.

Solarlux Cero sliding doors offer better and more consistent sightlines with mullions protruding far less than Cortizo doors. HardwdareEven better, the flush handle with Cortizo is simplistic blending in with the contemporary nature of these doors. Cero doors offer an all-in-one design and like Cortizo an integrated handle within the door profile. One downside of any slim sliding door is the depth of the frame. Here too, Cero doors look neater, despite their similar depth to Cortizo with a double or triple track.

Importantly for aesthetics, Cero sliding doors offer a more symmetrical look. This symmetry is their best feature as you look at the doors face-on. When inset into the structure, the entire door set has the same sightlines all around. The locking system is more minimalist, the soft-close action superb and the performance of the doors is excellent. Cortizo sliding doors are a great product, however, do take a look at Solarlux’s Cero slider as well. The design, engineering and operational differences are obvious. The Solarlux brand also speaks for itself. Cero may turn out more expensive. That said, it’s a better brand and an incredible sliding door.

Maxlight Sliding Doors

Like Sunvista, Maxlight doors come with the same structurally bonded construction from a very good manufacturer. They’re not cheap but they do look great and they’re really well made too.

Maxlight give you two options for slight lines at the sides of the door set. The slimmer side means having the lock at floor level on the bottom rail profile. This is functionally awful for most users having to get right down to floor level just to lock/unlock their doors. Or you can go with a thicker side profile housing the lock in the familiar location at the side and a reasonable height.

Other brands to consider alongside these alternatives include the Italian Metra System available from Express Bifolding Doors. You can also consider Reynaers Hi-Finity doors. The sliding door from Maxlight in London and Greenways Ultraline are another two product to consider too.

As always our advice is don’t be obsessed with 20mm mullions! You get a better, more functional, greater options and arguably a better user experience long term with standard sliding doors. They’re also cheaper too. Get in touch for product suggestions here.

For large patio door openings at four metres or more, the bolder thicker sightlines of contemporary sliding doors with more aluminium look great and there’s no need to obsess with getting the slimmest lines when bold aluminium profiles give you really distinctive doors rather than a minimal look.

We see frequent examples of Dutemann Glide-S, Reynaers, Schuco, Visoglide and other dry-glazed sliders that shouldn’t be discounted just because they don’t have a 20mm mullion!

And remember. Unless the doors are being fitted into the structure, the slimline look only applies at the mullion. The surround frame is always thicker than 20mm so don’t expect to get a slimline door all round.

More information and advice about sliding patio doors

Use our contact form, get in touch about sliding doors, general patio doors and any other aluminium glazing requirements.

Published on November 12, 2019

Reader Interactions

Comments

  1. Kayleigh says

    Hi I have the bi fold 4 panel and the opening door always gets stuck at the bottom when the weather gets hot and have to give it a hard push to open. Is the due to being fitted wrong? When the weather isn’t to hot its absoulty fine.

    • Nick Dardalis says

      Hi Kayleigh, There is thermal expansion with aluminium as well as PVCu, it’s impossible to comment whether it’s been fitted wrong but I would engage with your installer on this to see what the problem could be, it’s rare we hear of issues with Cortizo doors when correctly made and installed.
      Kind regards
      Nick

  2. Julie says

    Hi, I noticed someone is selling the Coe vision sliding doors on eBay. They say they are a small family run business from Surrey. Think it’s kevin@doors-direct uk.
    Have you heard of them at all?

    Thanks
    Jude

    • Nick Dardalis says

      Hello Julie, yes I have and never heard anything negative about the business. Ebay is one outlet to buy doors but just be careful in being sure exactly what you’re getting. Cortizo doors are not ‘simple to fit’ and make sure you get a good survey and a professional installation.

      It’s tempting to buy doors online and there are many that sell Cortizo and other systems at low prices. My advice is to follow the trend and that is buying these complex doors from a good supplier that while doesn’t make the doors, buys from a good manufacturer and knows what they’re doing when fitting.

      Most of the ‘complaints’ people have about product are either down to bad manufacturing or installation – rarely is it the fault of the product itself through it’s design.

      Hope this helps
      Kind regards,
      Nick

  3. Allan says

    Hi, I have had a Cortizo 3 panel bi-folding door 2.5mm heigh x2.5m wide originally fitted 6 months ago. All the panels are bent by at worst 1/4″ meaning the doors don’t seal. When the sun shines and the doors get warm they straighten up! Last week the installation company replaced the worst door. They said the delay was down to the company being difficult to deal with. The door was straight when they fitted it – I checked it myself, but by the time I came home from work the door was bent and not sealing.

    Where on earth do I go from here?

    PS. I’m a mechanical engineer.

    • Nick Dardalis says

      Hello Allan, thanks for your comment and sorry to hear that you are having difficulty with your installation.

      The ATS website is an information resource and we hope you will understand that due to the complexity of legal and technical issues we can’t get involved in disputes. However, most issues such as this sound like they could be either incorrect manufacturing and/or installation. There is also a possibility of a problem with the extrusions themselves perhaps bowed or something else. There are a range of factors that make each job unique it would not be responsible of us to comment on an individual problem.

      I would continue to liaise with your installer and get them to involve the systems company, perhaps a site inspection with all parties there to try to narrow down the issue.

  4. Nick says

    Hi! We have just had a CorVision three-pane sliding door fitted in our extension, but whenever it rains the water comes running under the doors along the tracks. We can’t lay our new wood floor because the screed keeps getting soaked!
    I’m trying to understand what the issue is – I suspect it’s the fitting rather than the design. Surely water (and a draught) shouldn’t be able to come in under the door – do you have any suggestions as to where the issue might be? Thanks in advance…

    • Nick Dardalis says

      Hello Nick, thanks for your question. These doors are widely used by brands like Origin, Infiniglide, Air doors and others and we rarely hear about water ingress issues with the product itself, so it does sound like an installation issue rather than a product fault. It might be worth getting hold or Cortizo in the UK, based in Croydon and see if they can help working with your installer to pinpoint the issue.
      Kind regards
      Nick

    • Nick Dardalis says

      Hello Louise

      Due to the increasing volume of comments, we are struggling to manage these via the comment forms. Therefore, please can you use our contact form where these are managed and always responded too.

      Kind regards
      Nick

  5. Quentin says

    Hi.

    I’m having trouble finding a supplier of the Cortizo Cor Vision (or equivalent) in the Swindon (Wilshire) area. Do you know of one?

    Thanks.

    Quentin.

    • Nick Dardalis says

      Hello Quentin

      Due to the increasing volume of comments, we are struggling to manage these via the comment forms. Therefore, please can you use our contact form where these are managed and always responded too.

      Kind regards
      Nick

  6. Judy says

    Hi
    could you give me a list of showrooms in Essex to view Cor Vision sliding doors please?
    Many thanks
    Judy

    • Nick Dardalis says

      Hi Judy, thanks for your questions. Im not sure in Essex specifically but the below should have the doors in their showroom.

      Arkay Windows in Watford
      HBD Systems in Hertfordshire
      Open Living in Letchworth
      Southern Windows in NW London

      Hope this helps
      Kind regards,
      Nick

  7. Rae says

    Hi, could you recommend a supplier in Surrey please? (Ashtead / Epsom and surrounding) .
    A couple of suppliers have tried to put us of this system saying we ‘definitely need lift and slide for such a big opening’ (6m x 2.5m, 3 panels). They say the doors would be too heavy to operate comfortably. Are they right?
    I’ve not been able to find a showroom with this system on display in a large size so I can test and see for myself.
    Thank you.

    • Nick Dardalis says

      Hello Rae, I think you also contact us via email and I have replied but a summary below for you.

      Your opening is not beyond the capabilities of good sliding doors in a standard sliding method rather than lift and slide. However, lift and slide doors can be easier to slide. That said, the well engineered systems should also be light. You’ve a three panel design so each leaf is not that heavy, but that does depend on the individual product too.

      The smoothness of the doors also depends on the quality of the rollers underneath. This is a good sign of quality and engineering and some doors are very light to open even at large sizes.

      I can suggest the below products and suppliers to get in touch with.

      Aspire Bifolding Doors have three different types in their showroom and well worth a visit. Origin, Cor-Vision, Schuco
      http://www.aspirebifolds.co.uk
      sales@aspirebifolds.co.uk
      11 Castle Parade,
      Ewell By Pass,
      EPSOM
      KT17 2PR
      020 8224 7431

      P and P Glass
      337-339 Haydons Road
      Wimbledon
      London
      SW19 8LA
      0208 544 2420
      enquirieswimbledon@ppglass.co.uk
      https://www.pandpglass.co.uk

      I’d also take a look at Dutemann Sliding doors, the Glide-S especially is a lovely door.
      Dutemann Ltd
      01322 771213
      Unit R3, Northfleet Industrial Estate,
      Lower Road,
      Northfleet,
      Kent,
      DA11 9SN
      sales@dutemann.co.uk

  8. Colin Brookes says

    Hi, can you supply a company in the Bedfordshire area that supply and install these doors, thank you..

  9. Toba Adisa says

    Hello can you please give me a few suppliers in the northwest area. I only know of alpline aluminium however the reviews are off putting

    • Nick Dardalis says

      Hello Steve, no I don’t know anyone for this product in Cornwall but worth checking out the Origin OS-20 based on the same system.