When is a window more than just a window?
When it’s an Optiwin.
 

Efficiency. Comfort. Beauty. Never before have all three described a window with such accuracy. And never before has such a window been available in the United States. Until now.

Introducing Optiwin: the world´s best wood window and first Passivhaus-certified windows and doors available in America.

With its patented wood frame, Optiwin windows deliver an unparalleled level of comfort and energy efficiency for building owners who demand the ultimate in window aesthetic and performance.

With an Optiwin, windows and doors become more than simple glass. Optiwin windows become an instrument for climate control; an instrument for environmental consciousness; an instrument for your well-being.

How can a window do all that?