Defender Steel Door & Window Company Chicago

Chicago’s Trusted Choice For Making Your Home Beautiful, Safe & Secure

Chicago Security Door & Window Company

Serving Chicago & the Suburbs for Over 40 Years

We are a security door and window company in Chicago selling and installing steel entry doors, security storm doors, vinyl replacement windows, garage doors, and other exterior home improvements. Our goal is to make your home beautiful while improving both energy efficiency and security.

Our Chicagoland Window & Door Company Near You

At Defender Door & Window in Chicago, we take great pride in having helped the residents of Chicagoland make their homes more beautiful and secure. For over 40 years, we have been installing steel entry doors, residential security storm doors, vinyl replacement windows, patio security storm doors, commercial doors, and sliding patio doors in Chicago. In addition to those products, we also offer other exterior home improvements like garage doors, wrought iron fencing, wood fencing, aluminum fencing, vinyl siding, and gutters. We are committed to excellence in all of the products we offer and the service we provide. The entry and storm doors we install use the highest residential-grade steel and fabrication and our vinyl replacement windows are cost-effective and extremely energy efficient. We also provide custom doors in Chicago, such as non-standard size doors and round top entry and storm doors. As one of Chicago’s best door and window companies, we are committed to helping you get quality windows and security doors for your home. And don’t miss our special offers. Take a look through our website and contact us with any questions or for a free estimate.

We look forward to serving you!

Over 30 Years Serving The Chicagoland Area

Call us at

(708) 780-7320

Contact Us Today!

Our Security Door Installation Projects in Chicago

These are just a few of the Chicago security door installations we’ve completed. Check back often so that you can see more of the work we’ve done!

Steel Entry Door and Sidelite in Chicago

After | Before

Entry Door With Sidelites in Chicago IL

After | Before

What Our Customers Say

What do our customers say about their experience working with us? Take a look at their experience working with Defender Door Company in Chicago, Illinois…

I was extremely impressed with the door that Defender installed for us. We knew we wanted a door with decorative glass and we ended up buying a door with a woodgrain finish. Even though it is a steel door, it looks just like wood and matches the rest of the woodwork in our house. Working with Defender was also hassle-free which really made us love everything about our door. Thanks, Defender!

Angelo & Gale Catapano

La Grange, IL

After meeting with sales people from several different companies we chose Defender to install our bow window. We couldn’t be happier with the end result. Our new bow window has completely transformed our home. The inside of our house feels more spacious and from the outside it looks much classier. Defender was a pleasure to do business with and we have already referred them to friends.


Addison, IL


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