Steel door and window manufacturers often feature only insulated glass, failing to address the problem of thermal transfer to the metal frame. Portella’s Artisan Thermal Series, on the other hand, handles all areas of thermal transfer, providing energy-efficient steel doors and windows that will stand up to the hottest summer days in Austin, TX.
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.