The Window Source of the Tri-Cities

3036 Highway 75 Kingsport, TN 37663

Call us today!

423-406-8600

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.

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See What Our Customers Are Saying About Us

“I love my new windows! The whole experience from placing the order to installation has been great. The windows are very well made and was exactly what I wanted. It is nice to deal with people who are honest, hard working, and stand behind their products. Great job guys!”

Sandra Waldon; Blountville TN

“From the professionalism of Duane, the owner, to the perfection of the window installer – Joe-it has been an all around wonderful experience. The windows are gorgeous! My custom entry door is beyond what I could have imagined.”

Shelly Good; Johnson City TN

“The BEST team I have ever worked with! 5 STARS!”

Susan Smith; Johnson City, TN

“Provided us with great quality windows for our church parsonage. Very quick in order process and installation.”

Ruthie Williams; Flag Pond, TN

“Went above and beyond.  Love our new windows.  Couldn’t be more pleased.”

MW; Kingsport, TN