Steel-Look Aluminium: The Crittall Style Without the Compromises

The steel-framed window — fine black frames, gridded panes, factory-to-loft romance — never really went out of style; the material did. Original steel frames conduct cold, weep condensation, rust at the corners and carry single glazing. Steel-look aluminium keeps the aesthetic and swaps the physics: thermally broken profiles, double or triple glazing, powder-coat that stays black without repainting. Our SV-6000 Urban exists for exactly this brief.

What makes the look

• Proportions: slim faces and shallow sections — the frame reads as a line, not a border.
• Glazing bars: fine bars in authentic T-profiles, applied to both faces with spacer bars between the panes, so the grid casts shadows the way true divided lights do.
• Colour and texture: matt and fine-textured blacks and near-blacks carry the industrial look; bronze tones and deep greens suit period conversions.
• Formats: fixed screens, casements, doors, internal partitions and glazed screens between rooms — the loft vocabulary, available across a whole house.

Where it works

Warehouse and barn conversions are the natural home, but the style earns its keep more widely: rear extensions on Victorian terraces (the black grid flatters brick), internal glazed screens dividing kitchens from hallways without losing light, and replacement of tired 20th-century steel windows where planners want the original character kept. In conservation settings the fine sightlines are precisely what wins approvals — see our guide to windows and planning consent.

The performance gap, closed

Original steel windows are thermal radiators in reverse. Steel-look aluminium carries polyamide thermal breaks and modern sealed units, achieving whole-window values that meet Building Regulations comfortably — with security hardware, PAS 24 options and continuous gaskets that a 1930s frame never had. Maintenance is soap and water; the powder-coated finish is guaranteed for up to 25 years and never needs the wire-brush-and-repaint weekend that real steel demands.

Design tips from real projects

Keep the grid honest — bars should land at believable structural rhythms, typically forming vertical rectangles. Match internal screens to the external glazing for a coherent whole. Pair with slim-framed sliders where a whole elevation opens, letting the gridded elements do the character work. And order ironmongery in keeping: slim handles, dark finishes.

Pricing the look

Bars, colours and formats all price to specification, so send elevations or photographs with sizes through the quote form. The wider window collection shows where the Urban sits among its siblings.