Steel casement
windows.
The side-hung opening sash, hinged at the jamb — single or paired, the classic steel window.
The shape,
settled first.
The casement is the window most people mean by “steel windows”: a side-hung sash hinged at the jamb, swinging outward on a lever, with the slim welded frame reading as a fine line around the glass.
Casements run single or paired, and sit as happily in a run of fixed lites as on their own. Sash sizes are governed by wind zone — most of what we build sits under 2.7m by 1.2m per sash, and we can go larger where the engineering supports it.
The suite sets the character: single-glazed W20 for heritage retrofits where the sightline must all but disappear, SF20 for standardised internal work, W40 double-glazed as the everyday specification, and W50 TB where the casement sits in a cold-climate envelope.
External sizes are governed by wind zone — we confirm limits for your site when you enquire. See how the range performs.
Pick a design.
Then make it yours.
Each design is a fixed layout — panes, lockbox, kick plate. Open one in the builder and it carries straight through: suite, colour, hardware and glass are yours to choose, and nothing you pick here is asked again.
Same design.
Different steel.
The suite is the profile system behind the design — it sets the sightline, the glazing and the warmth. Relative cost shows as a tier, one to seven; a number appears only in the builder, once your opening is fully specified.
SF20
The standardised series. The accessible way into steel.
Internal screens & sheltered openings, standard sizes
W20
The slimmest. Single-glazed.
Heritage, internal partitions, mild climates
Finished
by hand.
Every unit is grit-blasted, primed and top-coated in the colour you choose — our house palette or any RAL on request — with the full corrosion-protection process underneath.
This style usually carries lever hardware — round, square or rectangular rose — in a choice of seven finishes. Glass runs from clear toughened to low-E insulated units, matched to the suite you choose.
Steel Awning Windows
Top-hung, opening outward — the sash that ventilates in the rain, alone or paired with fixed transoms.
Fixed Steel Windows
The picture window — maximum glass, no opening sash, one to three panes to a unit.
Steel French Doors
A pair of hinged leaves — dual hinged — in four set designs, from a clean full-glass pair to the classic heritage grid.
Build your opening — suite, colour, hardware, glass.
Don’t wait. Plan ahead.
Steel joinery is complicated to make — every joint welded, ground and finished by hand. Bring us in early with your architect and the timeline takes care of itself. Specify it at the start, not the end.