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.

Project Highlight

Napa Private Residence-Napa CA | Architect: RG Architecture | Builder: Trainor Builders

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

Interior Project-Calabasas CA

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Beach House-Monterey CA

Beach House-Monterey CA

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Barn Project-Oregon

Barn Project-Oregon

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Napa Private Residence-Napa CA

Napa Private Residence-Napa CA

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St Helena Winery-St Helena CA

St Helena Winery-St Helena CA

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Pacific Ridge-Santa Barbara CA

Pacific Ridge-Santa Barbara CA

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Monticello Executive Offices – Gensler – Charlottesville VA

Monticello Executive Offices – Gensler – Charlottesville VA

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TarryTown Residence

TarryTown Residence

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Dillon Kyle Architects – 420 Oak Lane

Dillon Kyle Architects – 420 Oak Lane

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Caruth House, Collins Reisenbichler Architects – Dallas TX

Caruth House, Collins Reisenbichler Architects – Dallas TX

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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.