The Window Source of the Tri-Cities

3036 Highway 75 Kingsport, TN 37663

Call us today!

423-406-8600

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The Window Source Gives Back

The Window Source gives back to the community in partnership with Rebuilding Together to empower Senior Citizens, Veterans & Low-Income Homeowners. The Window Source gives back to the community by...

How Long Has The Window Source Been in Business?

The Window Source is an Industry Leader! From the age of 15, our founder, Keith Kailian was setting sales calls for in-home improvement projects.  In 1975, Keith and his father,...

What is an NFRC Rating?

Each year, the average American household spends $1,500–2,500 on energy bills. 45% of that cost is for heating and cooling. Choosing high-performance windows, doors, and skylights can save you money...

What is Warm-Edge Technology?

There is Science Behind Energy Efficient Windows. The layers of glazing in an Insulated Glass Unit (IGU) must be held apart at the appropriate distance by spacers. Because of its...

When Is It Time to Replace My Windows?

Signs It is Time to Replace Your Windows... Windows keep your home well-ventilated, comfortable, and safe. The type of window, where the window is located in your home and the...

What Considerations are Important When Buying Windows?

Be a Knowledgeable & Confident Shopper in the Window Replacement Journey! There are five factors to keep in mind to have a knowledgeable conversation about what kind of windows you’re...

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...

Why Choose The Window Source?

Read Our Customer Reviews to Learn More! The Window Source is made up of a carefully selected group of entrepreneurs who care about quality and offering the best value to...

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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