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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 Bismarck

Why Wait?

With our make-it-easy payment plans you could have new windows in your entire home for just $40/month! Simply click the apply button below to connect with our home improvement financing partner, Green Sky Financing.

Installing New Windows, Siding & More in

  • Bismarck
  • Mandan
  • Lincoln
  • Arnold
  • Lynwood
  • St Anthony
  • And More!

The Window Source Products

Quality Products For Every Home

Bismarck’s Professional Source for Replacement Windows, Patio Doors, and More

When you choose windows and doors from The Window Source of Bismarck, you get great prices on quality replacement windows, patio doors, and more. On top of that, you can be sure the team you work with is professional and skilled at installation, so there are no issues when the job is done. Choose energy-efficient windows that help keep your home comfortable while cutting energy bills down. It’s our belief at The Window Source of Bismarck that the window buying process should be simple, not complicated. We’ll help you decide which windows are right for your home in Bismarck, South Dakota, by considering the specifics of your space and the characteristics of the weather. We’ll install replacement windows to fit perfectly and provide a warranty for peace of mind.

Energy-Efficient Windows by The Window Source of Bismarck

There are two main things to be aware of when choosing The Window Source of Bismarck. First, all of our new home windows and replacement windows are made to last and created of durable materials. Second, professional installation maters to get the Energy Star features you want to save money on energy bills. Whether you need new windows and doors, patio window installation, or new vinyl siding, we’ll make sure it’s installed properly. Our window installation services are well known, but our other services are just as professional. Add on a new front door, replace an awning window, or choose a new color of siding for the home. The Window Source of Bismarck will make sure you make the right choices for your home.

Bismarck’s Top Source for Replacement Windows and Doors

No matter what replacement windows you need, The Window Source of Bismarck will help. We size our windows custom to make sure they fit your home. Take a look at a new garden window, basement window, or double-hung window for your home. Then reach out to us to learn more and get your home improvement project off the ground.

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