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Steel windows · Made in Dallas

Steel windows and window walls.

Arched banks, corner walls and two-story glass, with the terrace doors drawn into the same grid.

Residence projects typically $60k–$250k+. Quoted per openingTypical investment

Specifying for a client? Start a trade project

Arched great-room assembly; courtyard great room

The Galatyn · Upper McKinney, Dallas

Arched steel windows for a residential tower.

The Galatyn’s garden room beneath an arched steel window wall
Arched steel windows · garden room

The garden room opens to the pool court through arched steel windows, one of more than two dozen openings at The Galatyn.

Building
20-story residential tower
Openings
More than two dozen
Drawn from
The architect’s elevations

For architects, designers and builders

Specify the windows with us.

Shop drawings for your set, pricing by opening, and a private showroom visit with your client.

Start a trade project

Decide early

Operable sash
Which panels open, and where the doors fall in the grid.
Sun and privacy
Orientation, shade and privacy glass, set with the elevation.
Header and sill
Structure and waterproofing at each opening, with your builder.

What we provide

Configuration
Fixed lites, operable sash and integrated doors in one grid.
Sightlines
Set opening by opening on your shop drawings.
Profiles
Exterior steel profiles are internally insulated.
Glazing
Triple-silver low-E insulated glass (≈62% visible light, 0.24–0.27 SHGC). Standard on exterior steel; privacy, reeded or fluted by selection.
Thermal breaks
Specified per project.
Structure
Header, sill and anchorage coordinated with your engineer and builder.
Shop drawings
Drawn against your elevations and approved before fabrication.
Fabrication
Made in our Dallas shop. Fabrication is typically 8–12 weeks after drawing approval.
Setting
Set in place by our own crew.

Exact sightlines and sections are set on your shop drawings.

The trade desk

Selected project teams

All 30 project teams
  • StreetLights Residential
  • Trammell Crow Company
  • Waldrop + Nichols Studio
  • Shaddock Custom
  • Park Interiors
  • Haley Lane Interiors

Typical investment

Every window wall, drawn and quoted.

Steel windows
Quoted per opening from your plans or photos
Multi-room projects
$20k–$65k
Residence projects
$60k–$250k+

Every project is drawn and quoted for its openings; size, glass, finish, hardware and site conditions set the final investment.

Several openings, or the whole house

The windows, the doors and the walls between them.

A window wall drawn with the entrance and the interior steel is quoted as one project.

Questions

Steel window questions.

“The iron stair railings and iron windows were of superior quality and craftsmanship.”

Andrew M. · Google

5.0 stars on Google · Best of Houzz Service 2013–2017 · Read every review

What do custom steel windows cost?

Steel windows are drawn and quoted with the doors and openings around them. Multi-room projects typically $20k–$65k. Residence projects typically $60k–$250k+. Opening size, quantity, pane layout, glass selection, finish, and installation conditions all affect the estimate; arches, large spans, and integrated doors can change the scope. Share approximate dimensions, the number of openings, and any plans or reference images so we can review the project as a whole.

What drives the price of custom steel?

How thin can the sightlines be?

Frame proportions depend on the span, glass, structural requirements, and design of the opening. We develop the sightlines in the shop drawings so you can review how the finished frame and divided lights will look before fabrication.

Compare steel, aluminum and clad sightlines

Are steel windows insulated?

Our exterior steel profiles are internally insulated, and our standard exterior glazing is triple-silver low-E glass. Thermal breaks are specified per project. We review the glass and frame details against the project's requirements during design. The specified assembly determines the performance of the completed opening.

Compare thermal breaks and internally insulated steel

Can a window wall integrate a steel door?

Yes. Fixed glazing and integrated steel doors can be detailed together so the entire opening reads as one architectural composition.

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.

Can you coordinate new steel windows with an existing home?

Yes. We review the existing openings and the surrounding architecture, then develop the proportions, glass, and finish to suit the home. Work can also run in phases, with later openings drawn to match the first.

More questions (3)
Where are your steel windows made?

Our team cuts, fits, welds, grinds, primes and paints the steel in our Dallas shop, steps from the showroom. You can visit to inspect the finished work and see where we make it.

Inside our Dallas fabrication process

Should I choose picture glass, SDL or true divided lites?

Picture glass gives an uninterrupted view. SDL bars cross a continuous glass unit; true divided lites use steel divisions between separate units. We choose the pattern and construction with the house, proportions and budget in mind.

Compare the three glass and grid approaches

Will low-E glass make the room dark?

Solar-control low-E coatings balance daylight with reduced heat gain. Our standard exterior glass specification has approximately 62% visible light transmission. We compare the appearance, daylight and heat-control needs of the room together.

Understand low-E glass and daylight

Plan your windows

Tell us about the windows.

Rocio and Jorge Perez, the founders of D’Hierro
Rocio and Jorge Perez read every project. Prefer to talk? (972) 943-9924

Step 1 of 2

Who you are
What are you planning?

Kept private. For a lot, the subdivision and ZIP are enough.

No obligation. A reply within one business day.

What happens next

  1. We look at the openings. Plans, photos or rough sizes are enough. Your architect, designer or builder is welcome on the thread.
  2. A direction and a budget range. Drawn for your house, then talked through at the showroom, on site or by video.
  3. Then the shop drawings. Every dimension on paper for you to sign before any steel is cut.

Private Showroom Appointment

Come see the work.

Designers: bring your client, and we set out the finishes for the project. By appointment, Monday–Friday.

The showroom

14060 Proton Road, Suite 250
Dallas, Texas 75244

Open by appointment · Monday–Friday

(972) 943-9924

For the trade

Specifying for a client? Send drawings or photos; no client address needed.

Start a trade project