888-467-0324
60+ Locations Nationwide & Growing

The Window Source

The Window Source believes that local family-owned businesses, supported by industry leaders with more than 40 years of operating experience, are an ideal combination for a company that values providing high-quality customer service, exterior home-improvement products at the best prices possible.

About Us

The Window Source of Upstate SC

Window Installation and Replacement in Upstate SC

The Window Source is your go-to provider of new and replacement windows in Upstate SC. From sliding glass doors to windows, our expert team can help you choose the right option for your home and get them installed in Upstate SC.

Installing New Windows, Siding & More in

  • Clinton
  • Greenville
  • Spartanburg
  • Five Forks
  • Reidville
  • Powdersville
  • And More!

The Window Source Products

Quality Products For Every Home

High-Quality Replacement Windows, Patio Doors, and More in Greenville-Spartanburg

Do you have drafty windows? Doors that don’t close tight? Siding that’s becoming stained? In these situations, The Window Source of Upstate SC is available to ease the problems. We can take care of these issues with new entry doors, replacement windows, or fresh vinyl siding in a color you love. All of our products are the best in the market and professionally installed by experienced technicians. There are lots of reasons to update your windows and doors. Even the need for a new aesthetic could necessitate a custom entry door installation. A patio door may need to be replaced if it no longer stays shut the way it used to. The Window Source of Upstate SC can help in those situations, too.

Gorgeous New Home Windows from The Window Source of Upstate SC

Instead of searching for the right company for “windows near me,” choose the superior window replacement company for Greenville-Spartanburg and the surrounding areas. We’ll install energy-efficient windows, custom windows, new home windows, and replacement windows you can count on. Double-hung windows are a popular choice for those in this area. After you choose a bow window, garden window, awning window, or casement window, consider other improvements your home could use. The Window Source of Upstate South Carolina can provide an entry door that stands out or puts up new vinyl siding if the original is getting dated or damaged. Or install patio doors to get a better glimpse of nature outside.

Find Stunning Replacement Windows Near Me in Greenville-Spartanburg

Having the best window installation service is important to ensure your windows are sealed tight and look great. You can count on The Window Source of Upstate SC to exceed your expectations with excellent replacement doors and windows. Contact us today to learn more and start the process toward a more energy-efficient home.

The WIndow SOurce Presence

Trusted With Homeowners Across The U.S.

Find your local Window Source location and experience why thousands of homeowners trust us with their most important investment.
  • "“The company to use if your needing window replacement, Fair pricing and honest fast work.”
    Tom R.
    Georgia
  • "Fantastic Company and true to their word! The crew was so professional and polite. We had our entire house of windows done and it only took 2 days..."
    Jennifer R.
    New Hampshire
  • "We had all the windows and the front and back exterior doors replaced in our home. It could not have gone more perfectly. The owner and the crew were all super nice and did a superb job. Very happy customers!!"
    Becky D.
    Oklahoma
  • “Excellent service, product, and less than half the price of the other 2 estimates I had. Installer cleaned up after himself and was very professional.”
    Ian G.
    Oklahoma
  • “Quality windows at an affordable price. Love our windows! Talked to several companies, but The Window Source offered top notch windows at the best price. Sales and installation crew were very nice, knowledgeable and professional. They did a great job.”
    M.K.
    Oklahoma

Window Source Q&A

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?

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?

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?

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

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.

The Window Source Difference

More Than Just Windows, Doors, and Siding

The Window Source difference goes beyond premium products and professional installation. We're committed to delivering an exceptional experience from start to finish, backed by the resources of a national brand and the personal touch of local ownership. When you choose The Window Source, you're choosing a partner invested in your home's long-term performance and your complete satisfaction.
FIND YOUR LOCATION

The Window SOurce Locations

Ready to Transform Your Home?

With 60+ locations across America, there's a Window Source near you ready to provide a free, no-obligation consultation and estimate. Each location is independently owned and operated by professionals who live in your community, backed by the training, support, and quality standards of our national brand. Connect with your local team today and experience the Window Source difference.

  • Energy Efficiency Experts - We help you choose products that reduce energy costs and improve home comfort while qualifying for available rebates and tax credits.
  • Comprehensive Product Selection - From traditional to contemporary styles, we offer hundreds of options in windows, doors, and siding to match any home.
  • Local Accountability, National Backing - Your local owner is invested in your community's reputation, supported by the resources and standards of a national organization.
Get A Local Estimate