Steel Windows & Window Walls

Steel window walls and fixed glazing — sightlines as slender as the structure allows.

Request a quote or call (972) 645-2144 Made in the USA

A steel window wall does what aluminum and wood can’t: hold a wall of glass on sightlines slim enough to disappear.

We build fixed and operable units, transoms, clerestories, and full window walls — thermally-considered profiles with insulated low-E glass, and smart-glass integration where you want privacy on demand. As a Dallas steel window manufacturer, we forge every frame in our own shop and install it with our own crew.

What we build

Steel window walls
Fixed & operable units
Transoms & clerestories
Slim forged sightlines
Insulated low-E glazing
Smart-glass integration
Thermally-considered profiles

Signature designs

Steel windows composed as part of the room.

Full-height window walls, operable casements, arches, clerestories, privacy glass, and sculptural specialty openings — each composition is drawn around the architecture, the view, and the way the room is used.

Minimal graphite steel window wall with five tall panes facing a limestone courtyard — Minimal wall **Five full-height bays give a quiet limestone room an expansive view with almost no visual interruption.**

Dark-bronze corner window wrapping a refined dining room at sunset — Bronze corner **Two walls of bronze-framed glass meet at a slender corner and turn the landscape into part of the room.**

Monumental round-top steel window with radial transom in a pale limestone room — Full arch **A radial head and disciplined lower grid give a monumental arched opening clarity and proportion.**

Full-height fluted-glass steel window wall with a clear clerestory band — Fluted privacy **Vertically fluted glass filters the view while a clear clerestory carries daylight deep into the room.**

Five aligned matte-black steel casement windows in a contemporary kitchen — Casement rhythm **A measured row of operable casements brings ventilation to a long elevation without breaking its rhythm.**

Three-bay steel courtyard window wall with a continuous clerestory band — Clerestory wall **A continuous upper band aligns over three broad bays for a window wall that feels open and precisely ordered.**

Double-height steel stairwell window with three continuous vertical bays — Stairwell glass **Three uninterrupted vertical bays draw daylight through a double-height stair while keeping the structure calm.**

Connected matte-black steel window walls overlooking a formal green garden — Garden room **Two connected window walls wrap a relaxed garden room in a clean, buildable steel grid.**

Three matching soft-arched bronze windows on a Mediterranean residence — Soft arches **Three restrained segmental arches repeat across the elevation with matching rails and centerlines.**

Faceted bronze bay window with an integrated seat in a warm walnut library — Faceted bay **A shallow three-face bay creates depth, a window seat, and a warm architectural focal point.**

Monumental circular bronze oculus window divided into four quadrants — Circular oculus **A true circular opening and centered steel cross turn a stair landing into a singular moment.**

Two-story charcoal steel window wall recessed into a pale limestone facade at blue hour — Double-height wall **A recessed two-story glass wall gives the facade scale while warm interior light reveals its slim steel structure.**

Selected Projects

Large thermally broken steel multi-panel door assembly opening a Bent Tree residence to a pool and garden in Dallas

Whole-Home Steel Doors and Windows Bent Tree, Dallas, Texas · 2017–2019

Dark-bronze commercial steel entry with X-divided glass and satin-gold pull at a Frisco memorial park

Memorial Park Steel Entry Doors Frisco, Texas · 2022

Full-height bronze steel-and-glass double entry fitted within an existing semicircular brick arch in Highland Park

Arched Steel Entry Door in Highland Park Highland Park, Dallas, Texas · 2018

Explore related projects →

A curated slice from more than three decades of work—not the complete portfolio.

One studio, start to finish

01Shop drawingsDeveloped from your elevations, a sketch, or a reference — signed off before anything is forged.
02Finish samplesPrepared during drawings and approved before fabrication moves forward.
03Forged in DallasFabricated in our own shop — nothing is sub-contracted abroad.
04Installed by our crewField measurement through final hang, one accountable team.

See the full process → Materials & finishes →

Good to know

Questions, answered.

How thin can the sightlines be?

Forged steel carries glass on far slimmer profiles than aluminum or wood — we draw the structure as slender as the span and code allow, then size the steel to it.

Are steel windows insulated?

Yes. We specify insulated low-E glazing and thermally-considered profiles so a steel window wall performs through a DFW summer.

Can a window wall include operable doors or vents?

Absolutely — fixed walls, operable casements, sliders, and integrated steel doors are detailed together so the whole opening reads as one piece.

What is smart-glass integration?

Switchable glazing that turns from clear to opaque on demand — useful for bathrooms, studies, and street-facing walls. We frame and wire it into the steel.

Planning resources

Make the expensive decisions on paper.

Practical guides for the measurements, specifications, and coordination that belong before fabrication.

Texas glazing guide Steel Doors & Windows in Texas: Glass, Heat, and Comfort Understand Low-E glass, U-factor, SHGC, insulated glazing, orientation, frames, seals, and installation when planning steel doors or windows in Texas. 5 min read Wine room planning guide Steel-and-Glass Wine Room Planning Guide Plan a steel-and-glass wine room around cooling, vapor control, glass, seals, door swing, hardware, lighting, racking, and installation sequencing. 5 min read Trade specification guide Architect & Designer Checklist for Custom Steel Openings A practical specification and submittal checklist for custom steel doors, windows, partitions, and glazed openings—from design intent through installation. 6 min read Interior partition planning guide Interior Steel-and-Glass Partition Planning Guide Plan an interior steel-and-glass partition around privacy, sound, glass, door operation, structure, room boundaries, and installation. 7 min read

All planning guides →

What clients & designers say

What custom-project clients say.

“Good quality and on time!! Thanks guys at D'Hierro. As a contractor, I will definitely call you again for my future projects.”

— Crescer Designs

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Bring us a drawing.

Send your elevations, a sketch, or a reference image for steel windows & glass. We'll develop shop drawings and a formal quote.

Request a quote (972) 645-2144