Austin’s Leading Provider for the Finest Quality Steel Doors and Windows
Beautiful & Luxurious Austin Steel Doors and Windows
Portella Product Lines
Artisan Thermally Broken
Portella’s Artisan Thermally Broken series meets or exceeds energy efficiency requirements. We are the only Custom Steel Doors & Windows manufacturer to include a thermally-bonded zinc application. This ensures your new doors or windows will last even in the harshest conditions.
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Classic
Our Classic series range of Custom Steel Doors & Windows are the perfect complement to contemporary architecture, featuring slender lines and minimalist profiles that let light flood into your home.
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Impact
Portella Steel Doors & Windows have officially passed impact testing for compliance with the Florida Building Code, while also achieving AAMA certification — a rare combination in the steel fenestration industry.
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Custom Steel Doors & Windows
Portella Announces The Contemporary 3-D Metal Door
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Superior Service For All Austin Residents & Businesses
At Portella, we’ve tailored our steel door and window services in Austin to meet your unique design goals. Our Project Managers always deliver clear and concise communication from the quotation to the shop drawing. That way, you’ll always be up to date on your Austin steel doors and windows project.
Our Solution to Austin Steel Doors and Windows Thermal Challenges
This state-of-the-art series features GRP (glass reinforced polyetherimide), a non-conducting material with steel. This design allows for increased durability of the doors and windows while providing unprecedented thermal performance.
Other manufacturers are also limited in their ability to customize their designs, which leaves them depending on European suppliers. Our new thermally broken profile patent allows us to manufacture and fully customize our own steel windows and doors and not rely on outside suppliers.
As a result, we’re able to offer Austin customers steel windows and doors with the sleekest frames and best sightlines on the market, perfect for Austin’s luxury residential, boutique commercial applications, or historical projects.
The Thermal Window Difference
With new windows, the heat in an occupied space must travel through the glass. But with thermally broken windows, the heat will be allowed to flow into your home from outside walls.
Thermal windows also minimize sound bleedthrough by blocking soundwaves, which allows you to enjoy the room with next to no noise from outside.
What Sets Us Apart From Other Austin Doors & Windows Suppliers
In addition, steel doors require very little maintenance as they resist corrosion, are extremely durable and will last for years. If your Austin business needs to save time and money while still increasing the value of your building’s interior, then a custom steel door is a perfect choice.
Best of all, our custom steel doors in Austin are stylish and easily blend with modern designs. They’re available in a wide variety of colors to suit your individual taste or match your building’s theme. You’ll be able to create an open and welcoming atmosphere for customers without sacrificing privacy or security.
Our custom steel doors and windows in Austin are made to order by highly skilled artisans and craftsmen.
We have 44,000 square feet of manufacturing space, which means more room to build your custom steel door and window designs.
We provide sleek, trademarked, narrow-profile sightlines.
Our own transportation eliminates restrictions from third-party logistics companies.
We are the only steel doors and windows manufacturer that includes a zinc bonded galvanizing technique.
Our Austin steel doors and windows exceed all industry standards, and we’ve received certifications from the ASTM, NFRC, and AAMA.
Contact Us Today to Get Your Project Moving.
Doors and windows crafted from our profiles are often the most prominent feature in prestigious luxury homes, historic renovations and boutique commercial spaces.









