Loretta house from the pool.

Precision built luxury steel windows and doors that are timeless, beautiful and minimalistic

Breathtaking Beauty. Breakthrough Performance

For over 20 years, Portella has pioneered new technologies that lead the industry. With our patented, thermally broken frame system, former limitations in customization simply disappear. Our innovations open up a world of possibilities for designers and architects who need impossible sightlines, the highest energy efficiency ratings and extreme durability with expressive elegance.

Now you can achieve your ultimate vision and reimagine architecture without boundaries. And we’ll be here to guide you every stop of the way.

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

Custom steel windows and doors from Portella feature narrow sight lines, exceptional strength, and unique sizing not to mention virtually limitless design options.

Living Room Picture

Performance

Portella is proud of our commitment to continue product development, testing and certification complience. Our doors and windows are third-party tested and have ASTM, NFRC, AAMA, and soon Florida Building Code certifications.

Living Room Picture
420 Oak Lane Project

A Solution to Steel Window and Door Thermal Challenges

Artisan Series is a solution for luxury residential, boutique commercial applications or historical projects. Our Artisan Series is NOT a variation of existing 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. Manufacturers offering only insulated glass without addressing the thermal transfer of the frame does to solve the problem. We invite you to view the Artisan design guide on our Artisan product pages.

420 Oak Lane Project
The Ronson Home - front view

Portella Difference

Portella understands what Architects are looking for. Here is what makes Portella different:

  • Trademark narrow-profile sightlines
  • Factory installed glass with Low-E options for maximum energy efficiency
  • NFRC rated thermally broken laser fusion welded and cold-rolled options
  • Wet glazed glass eliminates any possibility of moisture penetration
  • Clear and concise communication from quotation to shop drawings
  • Tested and engineered designs
  • One point communication with knowledgeable Portella Project Managers
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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