The Leading Window Company in Downers Grove, IL

A big house with multiple beautiful windows

Are you searching for a window company that installs energy-efficient, durable, and attractive windows? If yes, then look no further than The Door Store. Since 1987, our family-owned and -operated business has proudly been the premier window company in the Downers Grove, Illinois, area. When you partner with us you can expect top-quality products and flawless workmanship throughout every step of your project. We have a long list of satisfied customers, and we look forward to showing you why.

A Window Company Dedicated to Quality

We are a window company that recognizes the importance of having high-performance windows in place, which is why we source our products from industry-leading manufacturers, such as MI Windows & Doors and ProVia.

These companies are known for constructing energy-efficient windows that are equipped with:

Gas fills between multiple panes of glass
uPVC frames filled with polyurethane insulating foam
Stainless-steel spacers with moisture-absorbing desiccant beads
Low-E glass coatings
Triple weatherstripping

Having energy-efficient windows installed on your home is a smart choice, as they can help reduce stress on your HVAC system, which may even lower your monthly energy expenses.

What’s more, we are a window company that also values the importance of aesthetics. Considering this, we offer replacement windows in a wide selection of popular styles, including:

Double-hung
Single-hung
Casement
Sliding
Awning
Bay and bow
Garden
Geometric
Hopper
Picture

Customization options are available as well, so you can choose your desired frame color or finish, grid pattern, decorative glass design, and hardware.

Contact Our Team

To learn more about why we are the foremost window company in the Downers Grove, IL, area, contact The Door Store today. We also have an extensive showroom in Villa Park where you can view full-scale models of the windows we offer.

Visit Our Showroom

“Recently our home in Berkeley received vinyl replacement windows, a bow window and steel doors. I wish to write a big thank you to the gentlemen who installed the above improvements. The windows and doors look beautiful. The men were enjoyable to have around. They tolerated our questions and our neighbor's questions with genuine concern and patience. Paul and I appreciate their high quality of workmanship. Thank you for a job well done.”
Paul and Linda