Renewal by Andersen vs. Pella: Window Materials Once upon a time, all windows were made of wood and glass. They’ve come a long way since then in both efficiency and attractiveness by harnessing ...

PELLA, Iowa -- May 26, 2005 -- A leader in the window and door industry, Pella Corporation has engineered a new product line that combines beauty, safety, security and simplicity. And the science is ...