The No. 1 Source for Replacement Windows in the St. Charles, IL, Area

When your St. Charles, Illinois, home’s windows are looking worse for wear or simply not performing in terms of energy efficiency, Olson Windows, Doors, Siding & Roofing should be your first call. Our family-owned and –operated company has been serving the area since 1995, installing first-class replacement windows that are equal parts attractive and easy to operate. Not to mention, we have long maintained an A+ rating with the Better Business Bureau and a sterling reputation within the communities we serve. So, if you’re ready to upgrade your home with top-of-the-line windows, you can’t go wrong in choosing us.

Find the Right Replacement Window Style for Your Home’s Aesthetic

When you turn to Olson Windows, Doors, Siding & Roofing for your replacement window needs, you’ll be thrilled with the impressive selection that we have to offer. We’re sure to have the exact look you’re after, whether modern or traditional. Plus, you can find the perfect style to complement your home, as we offer:

  • Single-hung
  • Double-hung
  • Awning
  • Fixed-Frame (Picture)
  • Sliding
  • Casement
  • Specialty
  • Bay
  • Bow

The Team You Can Count On for Unmatched Replacement Window Expertise

If you’re not sure which window style best suits your tastes or the design of your home, the Olson Windows, Doors, Siding & Roofing team is here to help. And as well-crafted as our windows are, they won’t look or perform as advertised without proper installation. That’s another area where our team of seasoned professionals shines. We have performed countless window installation jobs over the years, so you can be sure that we’ll work with the utmost attention to detail. That way, your entire replacement window-buying experience is a memorable one for all of the right reasons.

To learn more about the outstanding replacement windows we can install at your home in St. Charles, IL, reach out to Olson Windows, Doors, Siding & Roofing today.

Questions? We Can Help! Contact Us Today!

Real People. Real Works.

Our Client Testimonials

Excellent service, complete explanation of the process, seamless installation by professionals, everything done correctly and cleanly, finished with paint touch up. Fine product -- Pella windows -- installed as they should be. Thanks to Mike S. and his crew!


Frank T.

Fantastic professional team. Excellent prices . Large variety. Quick service. Knowledgeable and trustworthy owner. Very professional laborers and extremely tidy on the job site. I will highly recommend this company. They exceeded expectations with stellar service.


Sandy M.

Great company to work with! Would definitely use again! We had 6 windows replaced and ordered the Pella Vinyl windows. Highly recommend using Olson Windows.


Sue D.

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Financing to Make
Your Project More

We offer easy financing options to those who qualify, helping put your exterior remodeling project within reach.

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Serving Barrington
& The Northwest Suburbs
of Chicago


310 W. Northwest Hwy.
Barrington, IL 60010
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