For additional consumer information, contact these resources

NFRC icon

NFRC (National Fenestration Rating Council) is a non-profit organization that administers the only uniform, independent rating system for the energy performance of windows, doors, and skylights.  The NFRC program gives homeowners a resource to make educated decisions regarding the purchase of these home improvement products.
Visit their site at

Energy star icon

Energy Star Ratings
Energy Star ratings for thermal efficiency of home products help guide you to the best performing window replacement solutions. 

EWC icon

Efficient Windows Collaborative
This site provides unbiased information on the benefits of energy-efficient windows, how they work, and recommendations for their selection and use. 

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Cozi Company LLC   ~   4814 Mount Zion Road   ~   Frederick MD 21703 
Phone 301-881-COZI (2694)   ~   Fax: 301-881-1008   ~
Copyright 2012 Cozi Company LLC