Save 15% on Windows, Siding & Doors

Upgrade your Tri-Cities home with trusted, locally-installed solutions from Certified MasterInstallers.

Now Is the Perfect Time to Upgrade Your Home

Your home deserves the best protection and style the Tri-Cities has to offer. For a limited time,The Window Source of the Tri-Cities is offering 15% off replacement windows, compositeand vinyl siding, and new doors to help local homeowners enjoy greater comfort, beauty,and energy savings.Whether you're dealing with drafty windows, outdated siding, or an entrance that's seen betterdays, our team of Certified Master Installers is ready to transform your home with qualityproducts and expert craftsmanship you can trust.

What’s Included in This Special Offer

Replacement Windows

Enjoy energy-efficient windows designed for the Tri-Cities climate. Choose from double-hung, sliding, casement, bay, bow, and custom shapes that reduce your energy bills while enhancing your home's curb appeal.

Composite & Vinyl Siding

Protect your home with durable, low-maintenance siding that withstands our regional weather. Available in multiple colors and styles to perfectly match your aesthetic vision.

Entry & Patio Doors

Make a lasting impression with beautiful, secure doors that welcome you home. From customentry doors to smooth-gliding patio doors, we offer solutions that combine style with superiorperformance.

Custom windows on the a manicured home

Why Choose The Window Source of the Tri-Cities

Your Neighbors, Your Trusted Experts

Serving Johnson City, Kingsport, and Bristol for years, we're not just contractors—we're yourneighbors committed to helping local families enhance and protect their homes.

Certified Master Installers

Our experienced team brings decades of combined expertise to every project, ensuringprecise installation that keeps out drafts, rain, and wind while maximizing energy efficiency.

Limited Lifetime Warranty

Your investment is protected with our comprehensive limited lifetime warranty, giving youcomplete peace of mind that your upgrades are built to last.

Easy Financing Available

Make your home improvements affordable with our flexible financing options, so you can startenjoying your upgraded home today.

[ Reviews ]

HEAR FROM OUR TRI-CITY CLIENTS

Karin H.
We found The Window Source via a radio advertisement for a home show, and are thrilled that we did. They do actual window conversions in mobile homes so we no longer have old ugly windows with cheesy frames; instead they are now beautiful windows with real frames and sills. The Window Source gave us the best quote…
Randall F.
I recently had replacement windows and Alside Ascend siding put on my house by The Window Source and they look fantastic. The large arch window they installed is nothing short of stunning. Daniel and Blake Mullin, a father & son team, installed the windows. Their work ethics and craftsmanship are something you just don't see much of nowadays...
Cory H.
One of the best home improvement projects I've had done. Communicative, On time, Professional, Polite, Cleanly, Attentive.Answered all questions and informed me of proper use of windows and features. This is coming from a guy who has done similar service/home improvement work and I'd be ecstatic to know I'm getting Shawn and Trent...
Heidi R.
The Window Source did such a beautiful job! From scheduling the appointment with Julie, to meeting with David the salesman and Dan & Blake the installers, it was nothing but excellence & professionalism! Dan & Blake finished the installation faster than scheduled & made sure everything was clean & tidy at the end of the day. What a great team they...
Karen G.
The entire team from The Window Source of Tri Cities was amazing to work with. Gina & Sheila in the office, Justin Fender ( design consultant) , Joe & Justin ( installers)! From start to finish communication, pricing, product & installation processes were explained thoroughly. The windows are wonderful! I love the screens...
Louise N.
We had a great experience with The Window Source of the Tri-Cities. They replaced a double-hung window with a picture window and wrapped 7 windows altogether. Justin did a great job walking us through our options, and Gina was super-helpful setting up appointments and keeping us updated on our order. Sean and Trenton arrived...
Judy A.
We have window 2 times now & will use again next year! Our experience has been great especially with the men who install! They are genuinely good people, Does excellent work! Shawn has been here 2 times for install & this last time Trenton was here , also a great guy! Shawn pays attention to detail & doesn't rush through a project. Our salesman David has...
Stephen L.
Shawn and Trenton came out today and installed my storm door. They did an awesome job. They were very professional and got the job done in a timely manner. They cleaned up before they left and I couldn’t be happier. I would 100% recommend Shaw, Trenton and of course, The Window Source!

Andrea H.
Shawn & Trenton W. installed sliding glass doors on my balcony & I couldn't be more pleased with the outcome! They were a professional, courteous team that greeted me with smiles & even informed me of what to expect during the process. I am so happy with the install, the doors & thankful my sister chose The Window Source for this job!

How It Works

1. Free Consultation

Schedule your no-pressure, in-home consultation where we'll discuss your needs, stylepreferences, and budget—all while answering your questions.

2. Expert Installation

Our professional team handles everything from careful preparation to spotless cleanup,delivering a smooth, worry-free experience from start to finish.

3. Enjoy Your Upgraded Home

Relax and enjoy lower energy bills, enhanced comfort, and a home that reflects your style—allbacked by our lifetime guarantee.

Special Offer Details:

  • 15% discount on all replacement windows
  • 15% discount on composite and vinyl siding
  • 15% discount on new entry and patio doors
  • Free in-home consultation and estimate
  • Flexible financing options available
  • Limited lifetime warranty on installation

Offer ends 2/28/26. Contact us today to schedule your free consultation.

Ready to Upgrade
Your Tri-Cities Home?

Don't miss this opportunity to save 15% on quality windows, siding, and doors installed byCertified Master Installers. Our team is ready to help you enhance your home's comfort,beauty, and value.

Offer ends 2.28.26. Cannot be combined with other offers. Free consultation and estimate withno obligation. Financing subject to credit approval. Serving Johnson City, Kingsport, Bristol,and surrounding Tri-Cities areas.