Schüco Doors London Independent glazing guides · Herts
Steel Windows & Doors · Steel-Look Aluminium · Jansen Steel Systems · Internal Screens

Steel-Look Doors: Aluminium vs Genuine Jansen Steel

By SDL Schüco Doors London Team Published 28 July 2026Focus: schuco doors

The slim, gridded 'industrial' look is everywhere — internal screens, Crittall-style windows, black-framed doors. But there are two very different ways to achieve it, and they are not interchangeable.

Steel-look aluminium

Aluminium systems can now mimic the thin, black, gridded aesthetic convincingly, with the bonus of thermal breaks and easy powder-coat finishes. For most homes this is the practical route to the look, and it coordinates with the rest of your aluminium windows.

Specification at a glance
Aluminium steel-look
thermally broken, easy finish
Genuine steel (Jansen)
thinnest sightlines, very strong
Best internal use
steel or aluminium screens
Best for slimmest bars
genuine steel
Cost
steel typically higher

Genuine Jansen steel

When you want the absolute thinnest bars and the real thing — often on high-end or listed projects — genuine steel systems such as Jansen deliver sightlines aluminium cannot quite match, with exceptional strength. They are specialist and priced accordingly.

Internal screens

The most popular use right now is an internal glazed partition — a broken-plan kitchen divider or a hallway screen. Both aluminium and steel work here; the choice comes down to budget and how thin you want the bars. See how the look sits on older homes in Crittall-style versus aluminium.

Getting advice

Because steel and steel-look aluminium are specified so differently, talk to a supplier who offers both. In Hertfordshire steel and Jansen systems are available alongside the aluminium ranges, so you can compare honestly rather than being steered to one.