Buying German Bifold Patio Doors in the UK

Photo of author

Nick Dardalis

Updated on

Like a lot of engineered products, patio doors made or designed by German systems companies enjoy a reputation for quality and reliability.  German bifold patio doors are no exception. Brand perception is important from a marketing perspective, but these German made products are also popular with fabricators and installers because their superior design means that they are easier to manufacture and more reliable once installed; meaning fewer service calls.

In this article we explain which German Bifold Patio Doors are available in the UK and give some detail about each product.

bifolding doors for large openings.

What German Bifolding Patio doors are available in the UK?

To begin with, there are four residential bifolding door products sold in the UK as German systems. Some of these are made in Germany, others are German designed and made in the UK. There are also other brands of German doors mainly available for the commercial markets.

We focus in particular on the four most popular brands of doors for the home.

Sunflex bifolding doors.

black sunflex bifold doors

There are seven premium SUNFLEX bifolding doors available in the UK.  These range from full aluminium, to hybrid bifolding doors as well as timber. There are also internal bifold doors. And SUNFLEX provides one of the most comprehensive ranges for general patio doors for the home.

SUNFLEX bifolding doors come to the UK only made in Germany, delivered to a nationwide network of approved SUNFLEX dealers.

The benefit of a SUNFLEX product is big door sizes, one of the slimmest bifolds on the market as well as some of the best hardware and operation of any bifolding door.  We recommend you consider SUNFLEX alongside any of the best bifolding doors available in the UK.  The award-winning SF55 and SF75 SUNFLEX doors are also unique as a German-made product with a BSI Kitemark certificate too.

Schuco bifolding doors.

grey folding doors 1024x683

One of the best-known brands of bifolding doors in the UK. A Schuco bifold offers excellent engineering, slim slight lines as well as an excellent range of contemporary colours.  Also, Schuco bifolding doors come in several different variants, such as the well-known ASS70FD, the higher insulation ASS80FD.

In spite of their massive German perception, Schuco doors are not made in Germany. Many different manufacturers all over the UK either make or supply these German bi folding doors but make in the UK. Schuco as a business is based in Milton Keynes where the aluminium profiles and extrusions go to their nationwide network of fabricators.

Some bifolding door suppliers such as Kloeber and Express Bifolding doors offer Schuco products, rebranded under their own names as well.

One of the most compared products to Schuco is the Origin bifolding door with many installers offering both brands.

Solarlux bifolding doors.

german bifold doors

Another premium product amongst German bi folding doors is Solarlux. Solarux offers 1o different bifolding doors, also including wood and wood-aluminium hybrid doors.

Every Solarlux product comes made in Germany and delivered to the UK, through a network of quality home improvement companies.  The Solarlux reputation is excellent. In fact, world-class architects such as Herman Hertzberger and Foster and Partners using Solarlux doors. 

The Solarlux SL 82 is an excellent example of the innovation that goes into these German bi folding doors.  SL82 offers a heat insulated product, with a near frameless appearance as well as just 8mm visible aluminium sight line.

Weru Bifolding Doors.

img 7202

In addition to the well-known brands above is Weru; established over 170 years. A less well known brand in the UK,  but Weru offers quality German made bifolding doors and general home improvement products.

Weru is furthermore credited with being pioneers of PVCu windows as early as the 1960s and now provides a premium range of bifolding doors, front doors, sliding doors and many other products.

The Weru bifolding door comes with narrow sight lines and rounded profile edges as standard as well as low U-Values. Also available are, wood effect finishes and a low threshold. Weru Bifolding doors come from a network of UK distributors.

What are the best German bi folding doors?

Choosing between these four aluminium bifolding doors comes down to a number of factors.  They are all excellent and worth considering.  Every one of these sought-after bifolding doors is well-designed with impressive aesthetics, capability and specifications. In our view, there are four key areas to examine, before choosing any of these brands.

1. Brand perception.

Firstly, any of these doors correctly made and installed will transform your home.  The broad view of brand perception is SUNFLEX with Solarlux being the more premium door.  Both SUNFLEX and Solarlux are also award-winning doors across the architecture, design and construction sectors.

Therefore we would consider these two doors as the more premium and luxurious.  To understand why you need to look at the fine details. The quality of the components, the detail in small items like the door catches, the way they slide and fold.   These two doors are 100% made in Germany if this is important too.

The quality of Schuco doors also depends on where you buy them. In particular, SUNFLEX and Solarlux offer quality consistency because only they make their doors.

2. Who supplies your German bi folding doors is important.

The second consideration is the source of the doors. Schuco is the odd one out amongst these four top brands.  On the one hand, Schuco approves their fabricators to supply them with materials. Schuco, of course, wants their doors well-made by professional manufacturers.  On the other hand, there are many places to buy Schuco bifolds.  Some installers happily declare the source of their doors. Others conversely do not.

With Schuco doors made by many different manufacturers, there is a risk of differing levels of quality and service. By comparison, the single-source of Solarlux and SUNFLEX ensures consistent service levels and quality every time.

Therefore to confidently buy Schuco bifolding doors, finding out who makes them helps you buy better. Not every Schuco door is the same.  A standard Schuco door is excellent. However, some manufacturers make different doors. A good example is a trade fabricator like Dutemann. Based in Kent, Dutemann supplies Schuco bifolding doors for the trade. What Dutemann does is make the product better than the standard door.

The Schuco door by Dutemann comes with a better Winkhaus lock allowing more flexible locking than the standard Schuco lock with less strain on the key as a result.  The traffic door handles are different too, and we understand the Schuco door made by Dutemann as the only Schuco door with a 20-year guarantee.

Therefore, Schuco bifolds are otherwise great doors, but unlike Weru, Solarlux and Sunflex, not the same across the supply chain. The rebranding carried out by some suppliers of Schuco we also consider unnecessary with such a strong brand name to start with. Yet big firms like Express Bifolding Doors and others have legitimate business reasons for doing so.

3. Complementary products for the bifold doors.

The third factor is if you also need windows and other products. Choose a Schuco door and it is unlikely you also get Schuco windows.   Many people choose to sell Schuco bifolding doors because they want to offer a premium door alongside standard doors like Visoglide bifolds from Smart Systems or Aluk folding doors. A substantial number of Origin dealers provide Schuco as well. However, few of these also choose to offer Schuco windows.

Many of these also offer a Schuco sliding door but that is where the loyalty to the brand ends.  For windows, residential doors, or front doors they choose other systems.  Consequently, it becomes difficult to locate a residential supplier of the full Schuco range. But they do exist.

By comparison, SUNFLEX and Solarlux provide a full range of home improvement products under one brand.  The benefit to the homeowner is having one brand with one point of guarantee in their home. SUNFLEX offer sliding doors, frameless doors, front doors, interior doors and garden rooms. Solarlux provides a big range too. Weru is the same.

Finally, Solarlux and SUNFLEX offer timber as well as hybrid products also giving you more choice. If you need other products and not just bifolds, Schuco may be too restrictive as a brand without extensive research.  But othewise, if you just need bifolds, these are excellent as stand-alone doors in your home.

4.  Cost of German bi folding doors.

The perception of German bi folding doors is higher prices.  As better-engineered products with more premium hardware and more luxurious feel, expect to pay more.

The new SUNFLEX SF55e is one product to consider alongside Reynaers, Schuco, Express, Kloeber and Origin.   Not only does this give you virtually all the stand-out features of the SF75, but it also comes at a very affordable price. At the same time, Schuco ASS70FD models come at affordable prices thanks to their wide availability.

sunflex timber aluminium e1543497713180

Top features of German bi folding doors.

Above all, these beautiful doors offer quality, reliability and are a joy to own.  Much of the quality comes in the fine details — for example, the gasket arrangement discreet as well as offering finger-safe gaskets.  The aesthetics of German doors become immediately evident with these being slimmer and more attractive than other brands.

Place these doors next to one of the builders favourite brands and stop for a minute to look at them. The differences in design, handles and how they work is certainly obvious.

Also look beyond the overall appearance. Study the door catches, look at how the components sit within the frame.  Next, operate the locking system and open the doors several times with the handles. Then lock and unlock the intermediate panels as well as open and close the doors several times.  You can then compare these to other doors you see.

The best features of German bifolding doors.

We’ve created a quick guide giving an overview of the best features of each of these bifolding doors.  Equally important is your supplier.  Not only must you love your doors, at the same time you want confidence in the installer.

German bifold door features
  SUNFLEX Solarlux Schuco Weru
Made In Germany Germany UK Germany
Exclusive Manufacturer No
Availability Approved
Bifolding door models Seven Ten Two One
Typical Mullion Sightline 115mm 104mm 121mm 130mm
Guarantee 10 years 10 years 10 years 10 years
Wood effect aluminium Special Order
Triple Glazed Option
Full RAL colour choice
Typical Double Glazed U-Values 1.4Wm2K 1.2Wm2K 1.6Wm2K 1.1Wm2K
Secured by Design No No No

In addition to these key features, there are many others.  Our advice is to see the doors, ask questions but also ensure they meet your needs.

There are, of course, other German brands also available in the UK. For instance doors and windows in PVCu and timber materials as well as frameless versions.  Our article concentrates on the popular bifolding door brands.  

Providing expert help to homeowners and trade professionals since 2010




Get Free help finding the right products from the best suppliers

16:42 30 Oct 23
Nick responded incredibly quickly to my enquiry (on a Saturday too!), and was able to offer invaluable advice on both aluminum systems and manufacturer / suppliers. Thanks Nick!
chris steerchris steer
16:18 09 Oct 23
Had a meeting with Nick during the grand designs show. Was extremely helpful and professional would highly recommend
Chris WesthorpChris Westhorp
19:55 13 Sep 23
Extremely helpful with pointing us in the right direction to find the products we required and suggesting firms that could reliably fit them.Nick was quick to reply and very detailed in his advice.Highly recommend reaching out to them.
Cathy GreenwoodCathy Greenwood
07:03 11 Sep 23
Update - A second email to nick for help on bifolds resulted in a detailed informative reply even on a Sunday ! This guy is so knowledgable and helpful .I approached Nick for an independent view on sliding doors v bifold and the different brand options . His reply was extremely detailed and prompt and allowed me to navigate this often confusing world in a much more informed way . Thanks so much Nick
Anthony CraigAnthony Craig
12:45 05 Sep 23
This is a must site for anyone looking for advice. Great service and very quick answers to questions. Nick has been of great help quiding us through the maze of aluminium products. Thank you
Philip DuffieldPhilip Duffield
20:24 26 Jul 23
I contacted Nick @ ATS for guidance on what aluminium sliding door systems would be suitable for an opening in an extension that is going to be both wide and tall. He came back really quickly with very detailed and incredibly helpful advice. He is clearly extremely knowledgeable about the systems on the market and their respective features and capabilities. If you’re feeling a bit lost by the overwhelming range of choices out there, I’d definitely recommend contacting him.
Dariush HekmatDariush Hekmat
17:25 19 Jul 23
Nick's advice is great. He is always quick to respond and spends time on responses, which really help to make an informed decision.
Alan FosterAlan Foster
07:51 12 Jul 23
Absolutely fantastic. Asked for advice about replacing Crittall (?) windows late last night and early this morning received 3 great suggestions and contact information for suppliers
Rachel LauRachel Lau
09:24 16 Jun 23
Fantastic website full of valuable and pragmatic advice about product selection and comparison: no other website gives information like this. Truly written for public interest. Don't hesistate to reach out to Nick via the mailing system. He responds very quickly, is friendly, and has very sound and high knowledgable advice. I have already shared this with my friend planning her own grand design.
guard Charlieguard Charlie
12:28 14 May 23
I emailed this company just on the off chance they could help me with new magnetic sliders for my patio door. They were not able to supply those but were so very helpful providing me with the name of a company who could. I am so very grateful at the great service. Dare say customers must be very happy. thank you so much.
Benjamin LewisBenjamin Lewis
10:06 04 May 23
Nick is very helpful indeed. Extremely knowledgeable on bifolds which was in relation to my query. Great website as well, some very useful articles. Particularly appreciated the article that lists all the major bifold options in order of their sightlines! Thank you!
P JonesP Jones
08:07 15 Apr 23
I asked Nick some questions about an installation we were considering and he replied within hours with some very useful suggestions that will probably lead us to using a different make and supplier. Thanks, Nick. Great work.
Nicholas WallNicholas Wall
13:18 02 Apr 23
Looking for fair and honest expert advice on all aspect of aluminium windows and doors? These guys will arm you with all the information you need to make the RIGHT choice in a highly complex, crowded marketplace. post a question and you will get a very quick professional answer you can rely on being based on fact. Thanks guys!
Giorgia SiriacoGiorgia Siriaco
16:25 21 Mar 23
After a lot of research to find doors that would meet our unusual size requirements and feeling increasingly uncertain about the best way to spend our small budget, I stumbled on the ATS website, and I'm so glad I did! I contacted ATS to request advice and Nick promptly replied with a wealth of information, providing us with options and relevant contact details. I only wish I'd found them sooner!
Carol NortonCarol Norton
10:01 17 Mar 23
I've been so confused about how to achieve the look I'm after, and going round in circles with various window/door companies, trying to get away from the huge chunks of plastic currently around my windows. I didn't expect an email to a company found through a Google search to really help - but I was desperate, so I tried. I'm SO glad I did. Finally I have clear explanations from ATS of where I've been going wrong, exactly what I'm looking for, and a list of local companies that might be able to provide it! The response has excelled my expectations and I feel as if I'm finally inching closer to a home with which I'll be happy and comfortable: thank you.
David NunnDavid Nunn
20:54 14 Mar 23
It is rare that I write reviews, however after my very positive communication with Nick - enquiring about suitable slim sash aluminium windows for my project, I felt that a review was definitely warranted. I can reinforce the many positive reviews posted so far, Nick was very quick to respond, providing comprehensive detail, with excellent independent advice.In summary, great service, thank you Nick.
Chantal AuerbachChantal Auerbach
13:04 09 Mar 23
Nick from Aluminium Trade Supply was incredibly helpful informative and pleasant to deal with. He responded quickly to emails and was very knowledgeable. Highly recommend being in touch with Nick if you are considering new aluminium windows or doors.
Lee JonesLee Jones
20:21 22 Feb 23
I dropped Nick at Aluminium Trade Supply an email re high security slim sightline bi-folds and their alternatives and he responded that quickly (and so comprehensively) that I felt bad I’d not paid him for his time!Nick Sir your product knowledge is outstanding and you are providing a level of service that goes wayyyy above and beyond expectations. I’ll definitely make sure I mention Aluminium Trade Supply to anyone I encounter looking for a fenestration solution 🙏🏼
15:13 13 Feb 23
We are looking to replace some old UPVC patios doors with aluminium ones. The ATS website is a great source of advice in an area where clear information is sorely lacking. Having used the website, I then followed this up with a number of specific questions relating to our search, and Nick came back very quickly with clear, detailed and very useful advice.I have been very impressed with both the website and with Nick's advice. My only regret is that I didn't come across ATS before replacing various windows in 2021 - I'm sure it would have saved me a lot of grief and money! Thanks again Nick.
Azza McCabeAzza McCabe
17:47 01 Feb 23
So impressed with this company.Responded to my query quickly andgave valuable advice. Nick was extremely helpful and we were able to move forward with our project.
Adri LoloçiAdri Loloçi
11:21 08 Jan 23
Nick was super fast to respond and provided some great recommendations. I would recommend this website to anyone looking to find bifold or sliding aluminium doors.
Stephen HoustonStephen Houston
16:16 03 Jan 23
Looking for aluminium crittall style internal door and external patio French doors. Noted good reviews and thought would ask for advice. Comprehensive reply with excellent independent advice and lists of fitters who could provide products and installation. Great service.
Inga GeachInga Geach
08:25 21 Dec 22
Nick from Aluminium Trade Supply has been extremely helpful with navigating the jungle that is aluminium glazing for our upcoming extension project. His advice was prompt, detailed and always impartial. Very grateful for your input, thanks Nick!
Amanda BurtonAmanda Burton
10:54 16 Dec 22
Brilliant website and an excellent service. Nick provided not only detailed advice and supplier contacts, but highlighted the considerations of various products so I could make an informed choice. Our Sunvista minimal sliders were fitted this week and I couldn't be happier, stunning. Thanks once again for your advice and recommendations, invaluable!
Keith BarnesKeith Barnes
17:18 10 Dec 22
Very helpful advice given to my question, including the name of 3 different companies that i could try for the product being enquired about. Many thanks
Munim ChowdhuryMunim Chowdhury
11:45 13 Sep 22
Nick has been very helpful on signposting me to a number of partner organisations for steel/aluminium doors.
SUSAN wallaceSUSAN wallace
17:26 31 Aug 22
My experience with this firm was exceptionally good and this is notalways the case as a female, dipping a toe into technical waters.I was spoken too with courtesy and at a level that helped me consolidate what was needed .On top of that I was given a list of companies and places where I could obtain the type of product I needed.I could not thank them enough and would certainly go there again and reccommend others do too.
Paul SalterPaul Salter
22:39 22 Aug 22
Contacting Aluminium Trade Supply is like contacting the Oracle direct. Advice is always comprehensive and balanced. On multiple occasions they have provided me with options that fully meet our objectives. Many thanks.
Nick McCormackNick McCormack
20:25 14 Aug 22
Really helpful and useful came back to me on a Sunday with some invaluable information. Highly recommended.
ray addisonray addison
13:14 14 Aug 22
received a prompt reply to my query,and helpful information from ATS