Senior Architectural Systems

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Nick Dardalis

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Senior Architectural Systems are a highly regarded systems company offering a wide range of window systems, quality curtain walling and door systems and more recently a range of hybrid windows and fibreglass window and door products. First to the UK fenestration market across a number of services and products, Senior Architectural Systems are today a significant brand in the UK market.

About Senior Architectural Systems

Founded in 1991 and with sites in Doncaster, Newport and Scotland, Senior Architectural Systems serve the UK fenestration sector with a complete aluminium windows and doors range. Still in private ownership Senior is amongst the top aluminium systems companies by turnover. A significant player in the UK Fenestration market, the company is also a member of leading aluminium, technical and quality associations, such as Alfed, Council for Aluminium in Building, and the renowned trainer in facade glazing and building envelopes.

One of the best things about Senior Senior Architectural Systems products is their excellent design, whilst at the same time providing simple fabrication, reduced stockholding and easy site installation. As well as this, the technical aspects of their products by design or specifications are excellent with several innovations in material, insulation and design.

The company was first aluminium systems company to powder coat their profiles, introduce a new thermal system to polyamide as well as a composite range of products, also known as hybrid.

Markets served by Senior Architectural Systems

Senior is well known in the commercial market for schools, hospitals, retail buildings, industrial and other construction sectors. Their curtain walling, commercial doors and windows are widely specified by Architects.

Whilst Senior systems aren’t often seen in typical retail showrooms, they are actually widely used and specified in multiple developments of dwellings, new homes and conversions of buildings into dwellings.

There are also many manufacturers of domestic systems choosing to offer Senior products as an alternative to popular brands such as Smart Systems or Aluk.

Senior Architectural Systems product range

senior architectural systems glazing in new manchester flats

The ever-evolving Senior range of architectural aluminium and hybrid systems covers most building requirements for glazing, facades and even secondary glazing.

Aluminium Windows by Senior

Six different aluminium windows products create slimline, commercial and innovative opening solutions in a choice of frame styles and performance requirements.

Ali Vu Windows

The Ali VU Casement window offers a slimline product within the overall range of aluminium windows. It’s key feature is reduced sightlines below 40mm as a fixed light and under 70mm where the window has an opening element. It’s ideal for any new build or renovation project and has complementary hinged and folding door products, providing a complete solution within one series of products. It also has a steel look version when using the stepped-vent profile.

PURe aluminium windows

PURe is an innovative windows product using polyurethane as the insulator instead of the polyamide thermal break used by most aluminium windows. The result is lower U-Values, Passivhaus credentials where required, better acoustics and pleasing aesthetics.

SFF Framless Windows

SFF frameless windows is a newer product providing glass-fronted opening elements within curtain walling. The advantage is thinner lines within facade glazing where opening casement windows are required. The SFFP model has a similar design but uses the parallel opening design, ideal for high-level windows and better open window safety.

SPW300 and SPW600

SPW300 and SPW600 have established aluminium windows products for residential or commercial use. Like all the Senior windows products they come as side or top opening, tilt and turn, pivot, reversible opening inwards and fixed models. The SPW300 has a narrower frame depth of 60mm with the SPW600 using a familiar 75mm frame depth for new windows or general window replacements.

Series 1 Hybrid

The Series 1 Hybrid Windows range provides aluminium outside, wood inside fixed or opening windows. Well-designed, highly insulated and environmentally friendly, these windows provide a more luxurious solution using two excellent window materials. The Series 3 frameless is a hybrid window designed for integration into the hybrid curtain walling products.

Senior Secondary Double Glazing

Secondary double glazing provides better insulation and security to heritage, listed and other buildings where normal window replacement isn’t possible.

An affordable solution to more insulated and quieter rooms, Senior Systems secondary double glazing comes as sliding, fixed, lift out and hinged versions. With most secondary glazing preferred in white, the profiles are pre-finished.

Secondary glazing comes in single glazed designs, easy installation and is available nationwide.

Senior Architectural Systems door products

The range of door systems by Senior covers both commercial, domestic or medium-duty doors including sliding and bifolding door products.


The folding sliding door product using the same innovative polyurethane thermal material provides excellent U-Values and has slim 123mm sightlines at the meeting door mullions. It also goes up to sizes of up to 2.6m wide although only 1m wide.


For sliding patio door requirements, the PURe Slide product comes as a standard or slimline product with a 96.5 and 50mm mullion model. There’s an inline and lift and slide design. They come with outstanding U-Values depending on the glass option chosen as well as sizes up to 3m high.

PURe® Commercial Door

For high-traffic applications such as schools, shops, offices and commercial buildings, the PURe commercial door provides impressive sizes of up to 1400mm wide and 3000mm high, ideal for design-led projects wanting bigger bolder doors with all the performance and reliability commercial doors provide. It also comes with the same variety of locking, entry/exit systems also available with commercial doors.

Ali FOLD Door

AliFOLD is the non-polyurethane version in a folding sliding door and there’s also a heavy-duty version providing larger panel sizes. Suitable for both commercial and residential applications, it comes in multiple configurations, including a traffic door, low threshold and excellent security and weather performance credentials.

Ali SLIDE Door

Also the polyamide version of the PURe sliding door, AliSLIDE by Senior Architectural Systems comes with an inline design, 79mm and 50mm interlock options and high security credentials. With the right glass specification, U-Values go as low as 1.6@=Wm2K. There’s a single, double and triple track design, although no open corner model is available.


Complementing the range of the SPW600 window is a matching aluminium insulated door. Single and double door models provide excellent solutions for domestic or medium duty projects such as small schools or care homes.

SD Commercial Doors

One of the best known and widely used non-thermal commercial door systems on the market. SD Commercial Doors are reliable, tried and tested and heavily specified. Multiple high use buildings around the UK are enhanced by these well-designed, easy to make and install and above all reliable commercial aluminium doors. Entrance doors, fire-exit doors, access control doors, plant-room and louvre doors and many other uses.

SPW 500 and SPW501 Commercial Doors

SPW 500 and 501 doors provide all the benefits of the SD product but with an insulated frame and door product. It comes in rebated, centre hung or anti-finger trap designs as well as all the hardware options commercial doors need for entry, exit, emergency exit or access control.

Series 1 hybrd doors

Complementing the hybrid windows series is a residential door product. Series 1 hybrid doors come as single or double doors, with matching side or top panels and are ideal in the home or medium-duty commercial applications. Quality responsibly sourced woods inside and powder-coated aluminium on the outside.

Curtain Walling and Ground Floor Framing

With a pleasing design, Senior Architectural Systems facade glazing and shopfront products provide homes and commercial buildings with low and medium-rise framing, integrating well with the overall windows and doors range.

The SFG system is flexible and designed for shopfronts and retail property working alongside similar commercial door products.

For Curtain Walling, SF52, SF62, SCW and SCW+ provide slim lines, high-rise or low-rise framing, unitised or stick designs and enhance any property with long-lasting, insulated and high performance glazing.

More information and where to by Senior Architectural Systems products.


Senior Systems provide their profiles and accessories to a nationwide network of quality aluminium manufacturers, providing supply only or supply and installation and trade services. You can get in touch using our contact form for where to buy the Senior aluminium range

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