Premium Aluminium
Glazing Solutions

For over 25 years, Direct Trade Windows has specialised in manufacturing high-quality aluminium windows and doors. Durable, energy-efficient glazing solutions for homeowners, installers, and developers.

PAS 24 Security

Enhanced security as standard on all products

Uw ≤ 1.2 W/m²K

Thermal performance exceeding Building Regs

3–4 Week Lead Times

Standard delivery. 4–6 weeks bespoke.

200+ RAL Colours

Any RAL colour. Dual-colour available.

Our Product Range

We select the optimal system for each application — Cortizo, Smart Systems, and Aluprof — rather than pushing a single manufacturer's range.

Reliable Manufacturer & Installer
You Can Trust

Direct Trade Windows fabricates every aluminium frame in-house at our Slough workshop — cutting, drainage milling, crimping, and assembly run on Fom Industrie machinery under one roof in Berkshire.

System-agnostic across Cortizo, Smart Systems, and Aluprof, we specify the optimal system for each project — whether that's Cortizo COR Vision for ultra-slim sliding doors, Smart Visofold for bi-folds, or Alitherm Heritage for steel-look heritage replacements.

About Us
Direct Trade Windows Slough workshop — Fom Industrie aluminium fabrication equipment

Ready to start your project?

Whether you're an architect specifying for a new build, a builder quoting a renovation, or a homeowner planning your dream home — we can help.

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