Loretta house from the pool.

Finest Quality Handcrafted Custom Steel Doors & Windows

Beautiful, Proven, and Dependable

Whether this is your first experience or you are already familiar with Portella, we have a library of options and solutions for you to explore. We look forward to working with you, and helping you achieve your unique vision of your next signature project.

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

Announcing Portella’s New Thermally Broken Profile Patent

As the nation’s leading manufacturer of thermally broken steel windows and doors, we are proud to announce our new patent for thermally broken profiles. Our new thermally broken system has the narrowest sightlines of any steel door and window system available, has superior energy efficiency ratings, and affords us the ability to customize to our […]

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Advantages of Steel Doors & Windows

Steel doors and windows are a creative solution for obtaining a beautiful, custom look with lifetime durability to make your home or office an even better investment. There are many advantages to adding Portella’s high-quality steel doors and windows to your building envelope, including: Durability: Strength is one of the key features of a steel door, and […]

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