??We love our new Illinois Energy Windows !
We are completely satisfied with our experience with Illinois Energy Windows & Siding, Inc. We had four new windows installed in our 33‑year‑old single‑family home, and the entire process was smooth and professional from start to finish.
Sales representative Paul Girzynski thoroughly explained and demonstrated the benefits of the new windows, making everything easy to understand. He provided us with a very fair quote for the four windows, and we were comfortable moving forward right away. Shortly after, a window specialist from Illinois Energy Windows & Siding, Inc. came out to take precise measurements.
Within... read full review
April 2026
I had the pleasure of working with Illinois Energy Windows & Siding after soliciting proposals from several established companies for the same scope of work. The pricing was competitive and the warranty terms were comparable to other vendors in the market. The primary factors influencing my decision were Illinois Energy's strong reputation, their longevity in the industry, and my preference to support locally-based Illinois companies.
The craftsmanship demonstrated by the assigned installer was exceptional and reflected in the quality of the completed work. He reconstructed the entire door frame and installed two high-quality doors—the rear entry door and storm... read full review
December 2025
We had a great experience all around at Illinois Energy Windows & Siding. We walked into the showroom and were greeted by a friendly face, who linked us to a salesman. At the in home consultation we were walked through options, pros/cons and pricing in a thorough, relaxed and pleasant manner. The options we chose (a very cool door, btw) were installed within the promised time frame and exceeded our expectations in appearance, functionality and insulation (installed on a very cold day). The installer was great, speedy, detail oriented and efficient. He walked us through the ins and outs of the door (lol), and left our place cleaner than when he started, I'm embarrassed... read full review
??We love our new Illinois Energy Windows ! We are completely satisfied with our experience with Illinois Energy Windows & Siding, Inc. We had four new windows installed in our 33‑year‑old single‑family home, and the entire process was smooth and professional from start to finish. Sales representative Paul Girzynski thoroughly explained and demonstrated the benefits of the new windows, making everything easy to understand. He provided us with a very fair quote for the four windows, and we were comfortable moving forward right away. Shortly after, a window specialist from Illinois Energy Windows & Siding, Inc. came out to take precise measurements. Within... read full review
I had the pleasure of working with Illinois Energy Windows & Siding after soliciting proposals from several established companies for the same scope of work. The pricing was competitive and the warranty terms were comparable to other vendors in the market. The primary factors influencing my decision were Illinois Energy's strong reputation, their longevity in the industry, and my preference to support locally-based Illinois companies. The craftsmanship demonstrated by the assigned installer was exceptional and reflected in the quality of the completed work. He reconstructed the entire door frame and installed two high-quality doors—the rear entry door and storm... read full review
We had a great experience all around at Illinois Energy Windows & Siding. We walked into the showroom and were greeted by a friendly face, who linked us to a salesman. At the in home consultation we were walked through options, pros/cons and pricing in a thorough, relaxed and pleasant manner. The options we chose (a very cool door, btw) were installed within the promised time frame and exceeded our expectations in appearance, functionality and insulation (installed on a very cold day). The installer was great, speedy, detail oriented and efficient. He walked us through the ins and outs of the door (lol), and left our place cleaner than when he started, I'm embarrassed... read full review