Aluminium fabrication for installers — supply-only or supply-and-install
Direct Trade Windows offers aluminium fabrication to trade installers UK-wide. Cortizo, Smart Systems, and Aluprof systems — fabricated in-house at our Slough workshop, delivered on schedule, with technical drawings and install support included where you need it.
Home / Aluminium Fabrication for Installers | UK-Wide Supply
Pre-qualified for main-contractor and public-sector frameworksConstructionline Gold Member · 25+ years in-house aluminium manufacturing · 3 system houses · CE-marked, IFT Rosenheim tested · In-house design team
Why installers source from Direct Trade Windows
In-house design and fabrication means predictable supply — no broken supply chains, no missing components on delivery day. System breadth means you can offer your customer the right product, not whichever one you can currently source.
Direct workshop access — when something needs adjusting, you call the cutting team. Constructionline Gold means your end-client trusts the supply chain. Trade pricing for repeat-order installers.
Specification across aluminium budgets
We specify across three system families. The right system depends on the project — and the budget:
Cortizo (premium, our primary range) — Cor 70 and Cor 80 (the higher-thermal variant) for windows, COR Vision / 4600 / 4700 for slimline sliding doors, Cor bifold for bi-folding doors (slimmest sightlines, up to 3 m heights, cost-effective at scale), Millennium Plus for pivot entrance doors.
Smart Systems (full range fabricated in-house) — Visofold 1000 and 6000 for bifolding doors, Visoglide for sliding doors, Alitherm Heritage for steel-look heritage replacements, VS600 for vertical sliding sash windows.
Aluprof (specialist) — MB-86 for fire-rated applications and as a secondary option for pivot entrance specifications where Cortizo Millennium isn’t the right fit.
We’re trained and tooled on both Cortizo and Smart Systems — all fabricated in-house at our Slough workshop. For sliding and bifolding doors specifically, our default recommendation is the Cortizo range (COR Vision, 4600, 4700, and Cor bifold) based on our specifier experience with sightline minimisation, thermal performance, and cost at height. Smart Visoglide and Visofold are also fabricated where a project requires them.
How the supply-only relationship works
Quote against drawings or schedule
Frames cut, drained, crimped, powder-coated — ready for install
Technical drawings provided as standard (typical jamb, head, cill, corner sections)
Delivery to site or workshop, your choice
On-site install support available where systems are new to your team
We supply installers UK-wide. Our direct supply-and-install service is concentrated in London and the Home Counties; supply-only fabrication ships nationwide.
Joining the installer network
If you specify or install aluminium glazing regularly and you’d benefit from a fabrication partner with full system breadth, get in touch. Join the installer network →
Frequently asked questions
Can I order supply-only?
Yes — fabrication-only orders are a core part of what we do for trade installers. We ship UK-wide.
What’s the minimum order?
£4,000+VAT.
Do you offer trade pricing?
Yes — repeat-order installers receive trade pricing. Get in touch to set up an account.
Do you provide install drawings and support?
Yes — typical jamb, head, cill, and corner sections in PDF or DWG as standard, plus on-site training where systems are new to your team.
Are you Constructionline accredited?
Yes — Gold Member. Useful when your end-client requires accredited supply chain documentation.
Which sliding-door systems do you fabricate?
Cortizo COR Vision, 4600, and 4700 as our default specification, and Smart Systems Visoglide where a project requires it.
Which bifolding-door systems do you fabricate?
Cortizo Cor bifold as our default — slim sightlines, up to 3 m heights — and Smart Systems Visofold 1000 and 6000 where required.
Where do you supply?
Supply-only fabrication ships UK-wide. Direct supply-and-install service is concentrated in London and the Home Counties.
Sourcing aluminium fabrication for an install? Get a fabrication quote within working days.
Have you thought about joining our installer network?
You can join our installer network for free and gain access to the highest quality windows and doors supplied directly to you.
As a valued member of our installer network, you’ll receive lucrative leads, and benefit from infrastructure and sales support from our in-house experts. You will also receive technical support from our expert team when you need it.
At Direct Trade Windows, our commitment to excellence is reflected in our exceptional customer satisfaction.
We take great pride in our impressive 4.9 rating on Google, a testament to the unparalleled quality and service we offer.