Aluminium glazing for property developers — single source from drawing to handover

Direct Trade Windows manufactures aluminium windows, doors, and architectural glazing in-house at our Slough workshop. We supply residential developers, mixed-use schemes, and commercial new-builds across London and the Home Counties — drawings reviewed in-house, frames cut and assembled on Fom Industrie equipment, installed by direct DTW fitting teams.

Home / Aluminium Glazing for Property Developers | London

Constructionline Gold Member
Pre-qualified for main-contractor and public-sector frameworks Constructionline Gold Member · 25+ years in-house aluminium manufacturing · 3 system houses · CE-marked, IFT Rosenheim tested · In-house design team

Why developers specify Direct Trade Windows

Single-source manufacturer for the whole scheme — no specifier-fabricator-installer handoff loss. The drawing your design team marks up is the drawing our cutting team works from, and it’s the same team installing on site.

Constructionline Gold Member, pre-qualified for joint-venture and main-contractor frameworks. CE-marked, IFT Rosenheim tested. Predictable spec consistency across multi-unit schemes because everything comes from one fabrication source.

Specification across aluminium budgets

We don’t have a default range — we specify the best fit for the project. Cortizo, Smart Systems, and Aluprof are all fabricated in-house at our Slough workshop. System choice depends on the budget envelope, sightline requirement, thermal target, and the specifics of the elevation.

We’re trained and tooled on all three system houses. We routinely cross-specify between them — recommending the optimal system within the budget rather than pushing the most expensive.

Scheme-scale execution

Direct Trade Windows Slough workshop — Fom Industrie aluminium fabrication equipment

Projects from £4,000+VAT. Scheme pricing structures available against signed specification.

Frequently asked questions

Do you supply at scheme scale or single-plot only?

Both. Our workshop capacity supports schemes from single plots through to multi-unit developments. Scheme-scale work benefits from locked-in unit pricing against signed specification.

Are you Constructionline accredited?

Yes — Gold Member, the top tier. Pre-qualified for main-contractor and joint-venture framework agreements. Documentation provided at tender stage.

Can you hold pricing for staged developments?

Yes, against signed specification. Multi-phase pricing structures keep unit costs predictable across plot handovers.

Do you supply main contractors directly?

Yes — supply-only or supply-and-install, depending on what the main contractor needs.

Which sliding-door systems do you fabricate?

Cortizo COR Vision, 4600, and 4700 and Smart Systems Visoglide — system choice depends on the project. Both fabricated in-house at our Slough workshop.

Which bifolding-door systems do you fabricate?

Cortizo Cor bifold (slim sightlines, up to 3 m heights) and Smart Systems Visofold 1000 and 6000 — system choice depends on the project.

What’s your minimum project value?

£4,000+VAT.

Where do you install?

London and the Home Counties — Kensington, Slough, Watford, Beaconsfield, Guildford, Oxford, Ascot, Reading, Brentwood, Cobham, and Richmond. Projects outside this radius are case-by-case.

Do you provide as-built documentation for handover?

Yes — included as standard in scheme-scale supply.

Working on a development scheme? We supply at scheme scale with locked-in pricing and a single point of accountability.

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