Call us today!


What Makes a Window Energy-Efficient?

Energy-Efficient Windows Begin with the Right Glass Pack.

An Insulated Glass (IG) Unit contains two or three panes of glass separated by a spacer. The IG Unit is also known as a glass pack. The glass pack contains panes of glass, warm-edge spacers, gas fill, and Low E glass coatings that all work together to improve the energy efficiency of a window.  These key elements are unpacked below.

Call The Window Source of Indy For A Free Estimate!