Custom Steel Doors and Windows in Dallas

Individual. Custom Made.

Portella offers four product lines featuring our patented thermally broken profiles, which offers us the flexibility to produce custom steel doors and windows in Dallas and other markets. Tailored to any particular style or design, our metal door and window systems are crafted with energy efficiency, thermal challenges, and elegant design in mind. Our aim is to provide architects and consumers with uncompromising strength and integrity that blends form and function. Servicing the Dallas and DFW areas now, Portella is changing people’s views inside and out.

Explore the limitless design options in our gallery, or find a dealer in Dallas or one of our other locations near you.


Custom Steel Doors

Custom Steel Windows

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See The Difference Portella Makes

From interior to exterior, the unique appeal of steel and glass is backed by our commitment to architectural excellence and design. In order to bring out the full potential in any building or project, we offer the distinct look and appeal of narrow steel sight-lines while preserving the comfort and strength of traditional installations. For breathtaking views of our DFW architectural scene and other projects, check out our gallery and product lines.

Portella Announces The Contemporary 3-D Metal Door

Portella Announces The Contemporary 3-D Metal Door

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Quality, Safety, and Performance

To ensure that our custom steel windows are designed to perform even in that Dallas heat, we are dedicated to a persistent cycle of product development, testing, and certification. Third-party tested, our doors and windows are certified with ASTM, NFRC, AAMA, and soon the Florida Building Code to guarantee that our product lines are a quality investment for residential, commercial, and historical projects in Dallas or anywhere else. We aren’t satisfied with good enough, so it’s our goal to continue producing the best steel windows and doors for architects, new builders, and all others, and we hope to achieve that by pushing towards innovation that doesn’t sacrifice functionality or beautiful design along the way.

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No Sweat Steel Windows and Doors

People often overlook the thermal concerns when they consider steel doors and windows for their building needs. With a steel frame and so much glass, it’s easy to lose or gain heat from the frame, so the Artisan Series tackles this head on by introducing a GRP (glass reinforced polyetherimide). This non-conducting material helps reinforce the strength and thermal performance, avoiding the thermal transfer between the glass and frame that you often find in insulated glass designs offered by other manufacturers. For more features that help our metal windows and doors stand the test of time, take a look through the specifications of each line we offer to see the Portella difference.

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Why Portella?

Architects know what Portella has to offer, but what makes us different? From architects to new builders, here’s what makes us stand out:


  • Clear one-point communication with Portella’s Project Managers from the very first quote to drafting.
  • Patented, narrow-profile sightlines
  • Factory installed glass and a variety of options to improve energy efficiency
  • NFRC rated thermally broken simulated divided lite or true divided lite options
  • Metal stops or traditional wet glaze, with interior or exterior glazing options


Still not sure if Portella is right for your next build? Get in touch with one of our expert Project Managers to learn more about our tested and proven steel designs in the Dallas area. From quote to shop drawings, you’ll have one point communication with your project manager to discuss every aspect of your new steel windows and doors anywhere in the DFW area.

Contact a Project Manager to talk about your next project.

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Blog & News

How to Figure Out the Architecture Style of a Home

At its core, architecture is the design and construction of all homes, buildings, and structures. Within general architecture, there are hundreds (or possibly thousands) of types and subtypes of architectural styles that vary greatly based on many factors, including the geographic location, era of construction, available materials, technology, and design taste of the time. If […]

How to Update the Exterior of a Ranch-Style Home

Ranch-style homes exploded in popularity in the 1940s and stayed popular through the 1970s in the United States. In fact, during the 1970s, over 60 percent of new homes built in the United States were ranch-style homes.  Eventually, the popularity of ranch-style homes was overtaken by the larger custom homes of the 1980s, but many […]