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5.0
218 reviews

Window replacement/ install

Erin S.

We had 10 windows replaced and are very pleased with our install. The crew was polite and extremely efficient. They completed the entire project to include new trim and sills in less than 7 hours. They arrived on time and cleaned up well. The windows are beautiful and working perfectly

Illinois Energy Windows & Siding

Hi Erin! We are happy that you were pleased with the project! We appreciate your business and feedback! Illinois Energy Management

Patio Door Install

Scott S.

I recently had a patio door installed, and I couldn't be happier with the results! The entire process was smooth and hassle-free, from the initial consultation to the final installation. The team was incredibly professional and punctual, arriving exactly when they said they would and completing the job within the promised timeframe. The quality of the patio door is outstanding. It's both beautiful and functional, seamlessly blending with the existing decor of my home while providing excellent insulation and security. The materials used are top-notch, and you can tell that a lot of care and precision went into the craftsmanship. The installation crew was polite, respectful, and highly skilled. They took the time to explain the installation process to me and made sure I was comfortable with every step. They also left the area spotless, which I greatly appreciated. The new patio door has transformed my living space, letting in more natural light and providing a stunning view of my backyard. It has made a significant difference in the overall ambiance of my home. I wholeheartedly recommend this company for their exceptional service, quality products, and meticulous attention to detail. If you're considering having a patio door installed, look no further – you won't be disappointed!

Illinois Energy Windows & Siding

Hi Scott! All we can say is WOW! We really appreciate your awesome feedback and are happy to hear of your satisfaction. We strive to make our customers happy and are glad we delivered. I will make sure to share this with the rest of our team! Thank you for your business and support! Illinois Energy Management

Front door replaced

Jerry S.

Very easy process from sales to final installation. Everyone was very professional and answered all my questions. Quality door and great craftmanship by installer. 1 day install for exterior door and screen door. I would use them again for any future work I have done.

Illinois Energy Windows & Siding

Thank you for sharing, Jerry! We are glad to hear of your pleasant experience. Take care! Illinois Energy Management

Patio Sliding Door

Myra L.

Used IEWS to replace our patio sliding door. The new door was made and ready to install around 2 weeks upon signing the contract, which is a month earlier than estimated. The installation went smoothly and was finished in about half a day. The door is much improved from our previous door and noticeable difference in the quality. The glass and screen door slides effortlessly. The glass door doesn’t close all the way unless you push it hard. So far, it seems fine and we shall see how it holds up over the next few years with the seasonal changes. Overall, we are happy with the service with IEWS and will use this company when we are ready to replace our windows.

Illinois Energy Windows & Siding

Hi Myra! We are happy to hear of your satisfaction with our team! We appreciate your business and look forward to doing the windows when you are ready! Thank you! Illinois Energy Managment

Another great job by IE

Debbi D.

Great workmanship and professionalism with the installation process. I have been an Illinois Energy customer for 20+ years and when I needed windows replaced in my new townhome I didn’t hesitate to call them again. And they did not disappoint!!! From Derek who came out and did the sales consult to Max and his crew who did the installation-top notch service all around!!

Illinois Energy Windows & Siding

Hi Debi! Thank you for your kind words about our team! We appreciate your business now, and 20 years ago! Take care! Illinois Energy Management

Beautiful and High Quality

Julie M.

Great experts in all categories- design, installation and follow up. Highly recommended!

Illinois Energy Windows & Siding

We are thrilled to have exceeded your expectations, Julie! Thank you for your business! Illinois Energy Management

Great Experience Start To Finish!

Kristen S.

Our experience with Illinois Energy was great from start to finish! The rep from their company that came to our house, Derek, was very informative and answered all of our questions. The crew that installed our windows were just as great. They were efficient and cleaned up everything when they left. You wouldn't have know they were even here. I would highly recommend this company!

Illinois Energy Windows & Siding

We are happy you had a good experience, Kristen! Thank you for sharing your experience with us! We appreciate your business! Illinois Energy Management

Illinois Energy

john g.

Illinois Energy Windows & Siding did an outstanding job of replacing about half of my old windows a couple of years ago. I didn't hesitate having them come back to replace the remaining windows. The quality of materials and the professional installation was wonderful. I would highly recommend them to my family and friends.

Illinois Energy Windows & Siding

Thank you, John! We appreciate your business and recommendation! Illinois Energy Management

Window & door installation

James K.

Illinois Energy & Siding We were in desperate need of replacing 4 windows and 2 doors that no longer functioned very well in an old house. We stopped in at the Illinois Energy & Siding showroom and made an appointment with a sales agent to visit our home and provide an estimate. From the time we signed the contract to the final installation this company was wonderful to work with. Sales, customer service, billing and the installers were all excellent. The windows and doors were installed on schedule and look beautiful. The installers were careful in the installation and did a thorough cleanup afterwards. The finishing trim work around the doors went beyond our expectations. On a scale of 1-10 I’d give Illinois Energy & Siding a 12. If we ever need additional windows replaced I wouldn’t hesitate to hire them for the job.

Illinois Energy Windows & Siding

We appreciate your business and your rating, James! We are lucky to have you as a customer and we thank you for your business! Illinois Energy Management

Door replacement

JOHN P.

IEW&S Was so easy to work with. Goods ideas for the door, Quality of the door and install first rate. Look forward to working with them on our next project.

Illinois Energy Windows & Siding

We are glad you were satisfied with your door, John! Illinois Energy Management

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Main Office & Showroom Illinois Energy Windows & Siding


  • 430 Ogden Ave Lisle, IL 60532
  • Open Mon-Thurs: 9 AM - 8 PM, Fri-Sat: 9 AM - 2 PM
  • (630) 333-1823