Wind resistance measures each window"s ability to keep out drafts with 25 and 50 mph winds an an outdoor temperatures of 70º F. The Pella ThermaStar is part of the Replacement Windows test ...

We created and used a detailed methodology to compare Pella to more than 15 replacement window companies ... that competitors such as Harvey Windows and Doors and ProVia don’t offer.

Wind- and rain-resistance tests reveal winners from American Craftsman, Andersen, Jeld-Wen, Marvin, Pella, Preservation, and ...

Pella offers a selection of nine window styles and three frame materials. It also has lines of patio doors, sliding glass doors and French doors. While the number of window style options is on par ...