Loretta house from the pool.

Individually Engineered Steel Doors & Windows

Unique windows and doors that your space deserves

Whether you are an experienced architect or are new to the world of interior design, the quality of Portella doors and windows is obvious. Every product we offer will be customized to fit your needs, but the quality of our products will never fluctuate.

Choosing Portella windows and doors will allow you to not only complete your project, but transform your space to mirror the warmth and openness of San Antonio.

Announcing Portella’s New Thermally Broken Profile Patent

Announcing Portella’s New Thermally Broken Profile Patent

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The Trend to Large Format Doors Means Complex Installations

The Trend to Large Format Doors Means Complex Installations

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Portella Announces The Contemporary 3-D Metal Door

Portella Announces The Contemporary 3-D Metal Door

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Adolphus Hotel (Dallas, TX) Window Walls

Adolphus Hotel (Dallas, TX) Window Walls

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Joseph Fowler Homes Austin Texas

Joseph Fowler Homes Austin Texas

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Modern Office Space

Modern Office Space

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Steel Shower Enclosure Dallas Texas

Steel Shower Enclosure Dallas Texas

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Roof Panels – Brian Bailey Homes, Inc

Roof Panels – Brian Bailey Homes, Inc

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Bainbridge Island, Seattle Washington

Bainbridge Island, Seattle Washington

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Santa Barbara Ranch Style Home

Santa Barbara Ranch Style Home

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Portella Product Lines

When you work with Portella, your design options are limitless. Whether you are looking for entry doors for a residence, steel windows, commercial glass, or even window and door hardware, our products are unique and can be handcrafted to satisfy your needs.

All of our custom windows and doors feature narrow sight lines, exceptional strength, and project-specific sizing thanks to our patented thermally broken profiles. Explore our options to see how Portella’s library of options can enhance your design.

Living Room Picture

Quality Performance

Portella is proud of its products, but not just because they’re beautiful. Our steel and metal windows and doors are also dependable!

When you choose Portella products, you are choosing high quality craftsmanship and certified product development. Our doors and windows are not only third-party tested, but they also have ASTM, NFRC, AAMA, and Florida Building Code certifications. This allows us to ship and provide steel doors and windows for a variety of climates, weather conditions, and stringent building code requirements.

Living Room Picture
420 Oak Lane Project

Thermal Challenges are a thing of the past

Luxury residences, boutique commercial storefronts, and historical projects deserve renovation solutions that are as unique as the property. Our Artisan series of steel doors and windows, storefront glass doors, and custom interior doors offer benefits that are both aesthetically pleasing and innovative.

If you’ve been searching for steel window and door options, but are worried about the product being unable to withstand the San Antonio heat, look no further.

Our Artisan Series is not simply a variation of the non-thermally broken European extrusion products or “enhanced” thermally broken profiles. Portella’s Artisan specialty doors utilize a GRP (Glass Reinforced Polyetherimide), which is a non-conducting material with steel, that combines strength and superior thermal performance. This science translates to your cool air staying cool, and your warm air staying warm.

420 Oak Lane Project
The Ronson Home - front view

The Portella Difference

Architectural vision is all in the details. Portella can transform your vision into an elegant reality. Our team of professionals, and our custom doors and windows, make that possible.

  • One point communication with knowledgeable Portella Project Managers maximizes your understanding of our tested and engineered designs.
  • Patented, narrow-profile sightlines accentuate the open-air feel of San Antonio style.
  • Factory installed glass, with Low-E options, maximizes your space’s energy efficiency, especially during central-Texas summers.
  • Metal stops or traditional wet glaze, with interior or exterior glazing options to eliminate moisture penetration
  • Clear and concise communication, from getting a quote through installation, ensures your results are what you’ve been dreaming of.
The Ronson Home - front view

Blog & News

Color in Architecture

For almost 20 winters starting in 1999, Starbucks red cups became the announcement that winter had finally arrived. The red cups appeared in the hands of Christmas shoppers at the mall, on conference tables during Friday office meetings, and in the hands of those standing in line to ice skate at the seasonal rink. Their […]

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Weather’s Impact on Architecture

Architecture has always been more than just a roof over your head. Since the beginning of time, architecture can be counted upon to reflect the identity of a region as well as the needs of the people living there. Take, for example, the igloos of the Arctic. Its unique design and the use of packed […]

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