Exlabesa Building Systems

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Nick Dardalis

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Exlabesa Building Systems extrude aluminium profiles as well as offering a range of architectural aluminium windows, façade glazing and curtain walling products, commercial doors and shopfront framing systems.  They are part of the global Exlabesa Group and serve the UK market from their large Doncaster facility.

exlabesa building systems project showing exlabesa windows and doors in new flats

About Exlabesa Building Systems

Previously Kaye Aluminium Systems and bought out by Exlabesa in Europe, Exlabesa Building Systems are based in Doncaster and service aluminium commercial fabricators specialising in new windows and doors. As well as this, there’s a smaller domestic installer base providing Exlabesa bifolding and sliding doors as a quality and more affordable solution to other folding sliding systems.

In the UK, Exlabesa Building Systems are part of a global operation originating in Spain and providing aluminium architectural glazing systems and building a larger presence through acquisition and expansion.

Markets served by Exlabesa

Offering a variety of windows, residential doors, heavy-duty commercial entrances and facade glazing, these products are extensively used in the construction of new dwellings and commercial buildings as well as general building refurbishments.

All products are either made and installed by Exlabesa fabricators/installers or they supply the systems on a trade basis to a network of installers.

The Exlabesa Building Systems Product Range

Suitable for dwellings, new build dwellings, offices, schools, retail and other buildings, the windows, doors and curtain walling systems are well-designed, easy to fabricate and install and provide affordable new glazing solutions.

Aluminum Windows

Four different aluminium window suites provide casement and tilt and turn window products available in numerous designs, colours and opening options.

KC75 casement windows are designed for new build or refurbishment products offering modern design, fast fabrication for manufacturers and easy installation on site. With a 75mm deep outer frame and polyamide thermal break, they come in side or top hung opening as well as fixed modules. For larger opening vents, sizes go up to 1.5m wide and 1.5m high on a top-hung version.

The KC51 Exlabesa window offers the same specifications and options as the KC75 but also offers a 51mm outer frame for new build openings. These too come in similar large maximum sizes and fully weather and security tested.

Exlabesa KS59 windows joins the growing family of steel-styled casement windows. This product features the stepped edge detail of classic steel windows such as Crittall® with a similar design. Exlabesa KS59 come as fixed or opening windows, deep 32mm thermal breaks and with PAS24:2012 security certification. Beating other steel-look windows sizes go up to 1200mm wide and 1500mm high on a top-hung design and 600mm x 1500mm on a side hung version.

The tilt and turn window solution comes with the KT51 product featuring a floating mullion profile, thermally insulated frames and good modern design. They come with a 75mm deep frame, U-Values of 1.5Wm2K and even larger vent sizes of 1.5×2.1m creating openings larger than most single doors.

Elabesa Building Systems Aluminium Doors

The KD51 model is a rebated thermally insulated door system available as single doors, double doors and with matching side or top panels where required.

Also with a 75mm frame, these residential doors provide excellent solutions in residential property as well as doors in new build apartments. Sizes up to 1100mm wide and 2400mm high also cater well for larger door sizes.

The Xlafold bifold door

For bifolding doors, Xlafold is a modern product at a very attractive price for homeowners or developers. It comes with a low threshold option, traffic door configuration and pleasing sightlines. Door panels sizes are standard for a door in this category only going up to 1m wide per panel and up to 2.4m high. Like other modern folding sliding doors, it’s passed security and weather performance tests.

Inline and Lift and Slide Patio doors

The KLS lift and slide model creates panel sizes up to 3.3m wide and 3.2m high and offers reliable large sliding doors for new extensions and replacement door projects.

The inline product Xlaslide is a more classically styled patio door yet comes with an excellent slim interlock of just 32mm. Panel sizes go up to 2m wide and 2.43m high.

Exlabesa Curtain Walling

For facade glazing, the systems available are stylish and easy to fabricate and assemble on site. Moreover, they come with the insulation, structural integrity and performance required of a quality curtain walling product. The KLW system is the simpler version starting with 50mm mullions and going up to 125mm deep for larger structures.

ECW-50 curtain walling is a more advanced stick system for larger glass elevations and is also CWCT tested and certified. This is also the ideal product where inset doors or casement windows are required.

How and where to buy Exlabesa products

exlabesa logo

Commercial glazing is available on a trade supply only or supply and install basis via dedicated manufacturers and installers. The Xlafold bifold and sliding door products are making inroads into the retailer network. You can contact us for more product information and where to buy Exlabesa windows and doors.

Providing expert help to homeowners and trade professionals since 2010




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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