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.
Get ideas and inspiration in our gallery
Custom steel windows and doors from Portella feature narrow sight lines, exceptional strength, and unique sizing not to mention virtually limitless design options.
Announcing Portella’s New Thermally Broken Profile PatentView Project
The Trend to Large Format Doors Means Complex InstallationsView Project
Portella Announces The Contemporary 3-D Metal DoorView Project
Adolphus Hotel (Dallas, TX) Window WallsView Project
Joseph Fowler Homes Austin TexasView Project
Steel Shower Enclosure Dallas TexasView Project
Roof Panels – Brian Bailey Homes, IncView Project
Bainbridge Island, Seattle WashingtonView Project
Santa Barbara Ranch Style HomeView Project
Steel Sliding Doors – Double Horn Ranch TexasView Project
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.
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 (fiberglass 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.
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
Blog & News
When it comes time to replace your windows or if you’re in the market for an entirely new redesign of your home, office or building, you’ll want to take this opportunity to make sure your windows are the best for your environment so that it doesn’t cost you more money or damage later. There are […]Read
When the average person thinks of windows, they most often envision the standard, dull exterior windows found on “typical” buildings. The thing is, windows don’t have to be boring. In fact, as modern design principals evolve, windows are continuously stepping up into the spotlight. Good windows can make or break not only the functionality of […]Read