Comfort Zone Window Tinting is a 3M-authorized installer of Prestige Window Films in Milwaukee, Jansville, Beloit, Racine, and Kenosha for the residential and commercial markets. 3M window tinting products solve many problems commonly associated with glass. The sun can damage the furnishings in your home as well as create unwanted heat and glare. 3M security film also makes entry into your home more difficult by strengthening the glass it covers.