The Window Source of the Tri-Cities

Serving Southwest Virginia and Northeast Tennessee including the Tri-Cities

The Window Source provides homeowners in the Tri-Cities with the best value when purchasing new or replacement windows. Our team specializes in windows, sliding glass doors, sliding and more. Our mission is to provide you with an easy and pleasant shopping experience. You can be sure we’ll get the job done right the first time.

The Window Source of the Tri-Cities

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3036 Highway 75
Kingsport, TN 37663

Installing New Windows, Siding & More in

  • Kingsport
  • Johnson City
  • Bristol
  • Marion
  • Jonesville
  • Gate City
  • Roan Mountain
  • Elizabethton
  • Jonesborough
  • Mt. Carmel
  • And More!


Entry Doors

Patio Doors


Storm Doors

  • Picture Window Replacement and Installation
  • Awning Window Installation and Repair
  • Casement Window Installation and Repair
  • Double Hung Window Installation Estimates
  • Double Hung Window Repair and Installation
  • New, Heavy Duty Entry Door Replacement and Installation
  • Sliding Patio Door Repair and Installation
  • Whole House Siding Installation
  • Storm Door Repair and Installation

Storm Doors

Sliding Patio Door


Picture Window


Entry Door


Double Hung Window

Awning Window

Casement Window

Double Hung Windows

Get Free Estimate

Trusted New Home and Replacement Windows in Kingsport, Tennessee

When your windows are drafty or losing their seal, you need replacement windows for your home in Kingsport, Tennessee. Double-hung windows, custom home windows, and energy-efficient options are the best way to make your home comfortable for years to come. If you aren’t sure what windows to choose, The Window Source of the Tri-Cities can help. You might select a bay window, casement window, garden window, or awning window installation, depending on your unique needs. Our windows come in custom sizes so they’ll fit your home, no matter what you have in mind. The skilled technicians on our team are skilled in installing both replacement and new home windows.

Install New Home Siding, Patio Doors, or a Stunning Entry Door in Kingsport

Besides installing new home windows and adding replacement windows, we offer several other services. We can build doors and windows of the size and style you want and install them into your home. This includes stunning entry doors and glass patio doors that offer a look outside. Our windows are high quality with energy-efficient features, weatherstripping, and durable frames. Beyond windows and doors, we can also add new vinyl siding to your home. This is the perfect way to get a new aesthetic, color, texture, or other features that set your home apart. Speak to a member of our team to learn more about your options. At The Window Source of the Tri-Cities, you can choose from a selection of windows. Our quality installation can help with energy costs and create better curb appeal.

Garden Window, Front Door, and Vinyl Siding from The Window Source of the Tri-Cities

Are you ready to have replacement windows installed at your home? Reach out to us at The Window Source of the Tri-Cities to get the process started. We can share more information about the products available, how installation works, and provide details about the warranty. Get in touch now to get started with new windows and doors.

Real, Local Reviews From Happy Customers


Window Source provided wonderful customer service from beginning to end. Dustin performed our installation and was a pleasure to have at our home. The windows look beautiful, all clean up was performed and Dustin showed me all features of my new windows. I highly recommend Window Source.

Cyndi Strecker

The entire process, from initial walkdown and quote to final installation, was smooth and carefree. The price was the best of 3 estimates and the final product looks fantastic. I can’t say enough about how great the install crew was to work with…very professional, prompt, and neat on the job site. I highly recommend using Window Source for your needs.

Paul Mahaffey

Quick, friendly and expert installers. The whole crew impressed me so much I contracted them to install a sliding door to our deck. Products are well made and energy efficient.

Chad G

Dustin the technician showed up on time , worked all day and made sure everything was installed correctly. I would highly recommend the window source.

Timtohy Russo

Window Source has offered what appears to be a quality product at a reasonable price, and the salesman Steve Ray was pleasant to work with and answered all our questions. During the install the workers were quick yet professional at their trade and also a pleasure to deal with. The only question left is how reliable the product is and only time will answer that.

Rick Dobbs

Window Source Q&A

Is it worth it to replace my windows?

Is it worth it to replace my windows?

Older windows are notorious for being leaky and inefficient. At The Window Source, we are constantly improving our technology to be more energy efficient. Installing new windows can realize up to an 80% return on investment when you sell your home. Coupled with the savings you’ll see on your energy bill, the cost of window replacement can often be quickly offset.

How do I know when to replace my windows?

How do I know when to replace my windows?

Anytime you notice damage on your windows, it is a good time to have them looked at by an expert. Damage can be caused by water, insects, and father time. Your old windows ar inefficient, unattractive, and can cause damage to your home, call our experts today!

How much will it cost to replace my windows?

How much will it cost to replace my windows?

The best way to determine the cost is to contract a professional and receive an in-home estimate. At The Window Source, our estimates are FREE to you.

What types of payment methods and financing do you offer?

What types of payment methods and financing do you offer?

We offer a variety of payment methods and financing options. Please contact us to hear our options.

What Warranty do you offer?

What Warranty do you offer?

Lifetime Warranty - All Window Source products come with a limited lifetime warranty. You will have peace of mind knowing that you will only make this investment in your home once. Ask your window consultant for details.