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5.0
309 reviews

Amazing

Nicole S.

We had an amazing experience from start to finish. We had an issue with two windows.Mark came out to see what the issue was said not a big deal they could fix it When the time came to fix the windows they were so efficient and SO NICE. In fact everyone that I interacted with was great highly recommend!

Illinois Energy Windows & Siding

Thank you so much for your glowing review! We’re thrilled to hear that your experience was amazing from start to finish. It’s fantastic to know that Mark, Josh, and the rest of the team handled the window issue efficiently and with such kindness. We truly appreciate your recommendation and look forward to assisting you with any future needs. Thanks again for your support! Illinois Energy Management

Updated window

Stephanie E.

We had a great experience with this company. They came and measured our windows quick and easy. Then the installation was smooth. They did a great job, nothing damaged and the window fit great. We can totally tell the difference.

Illinois Energy Windows & Siding

Thank you so much for your wonderful review! We're thrilled to hear that your experience with us was smooth and efficient. It’s fantastic to know that the new windows are making a noticeable difference for you. If you need anything else or have any questions in the future, don’t hesitate to reach out. Enjoy your new windows! Illinois Energy Management

Great windows great service

Edward M.

Five stars across the board, from the salesman coming back out to the crew coming back out to the people on the phone at the office. Reaching out. Everybody was top notch. The windows are beautiful and we will be using you guys again and we're ready to get the next set of windows done

Illinois Energy Windows & Siding

Thank you so much for your fantastic review! We're thrilled to hear that every aspect of your experience, from our sales team to the installation crew, exceeded your expectations. It’s great to know you’re happy with your new windows, and we can’t wait to work with you again on your next project. If there’s anything specific you need or any questions you have, don’t hesitate to reach out. Thanks again for your support and trust in us! Illinois Energy Management

Another Fantastic Experience with Illinois Energy!

Jake T.

Just wanted to give a shoutout to Illinois Energy for the awesome job they did on my new windows, fascia and soffit! The sales rep, Garret, was super helpful and made the whole process easy to understand. This is my second time working with Garret and he has made the process painless both times. I have now installed just about everything Illinois Energy offers across my first two houses. The guys who did the installation were great - showed up on time, worked fast, and left everything clean. The fascia and soffit have really made my house pop. Replacing the old wooden features with wood grained aluminum was a great choice. And the windows! They look amazing and my house already feels way more comfortable. If you're thinking about getting new windows or siding, definitely check out Illinois Energy. I'm so happy I did!

Illinois Energy Windows & Siding

Thank you so much for the fantastic review! We're thrilled to hear that you had such a positive experience with both Garrett and our installation team. It’s great to know that the new windows, fascia, and soffit are making such a difference in your home’s appearance and comfort. We really appreciate your continued trust in us and are delighted that you’re happy with the results. If you ever need anything else or have more projects in mind, don’t hesitate to reach out. Illinois Energy Management

Front door replacement

William l.

Great experience from start to finish! Sales team was great and very informational. Installed in less that a day and the installer was extremely professional and did a great job!

Illinois Energy Windows & Siding

Thank you for the great feedback William! We’re thrilled to hear that our sales team and installer met your expectations and that the project went smoothly. If you need anything else, feel free to reach out. Thanks for choosing us! Illinois Energy Management

Another great experience for this repeat customer

Kevin M.

We had another great experience with Illinois Energy. This was our fourth time using them and as always, they did a great job! This time we had 2 windows and a sliding door replaced in our walk-out basement. The sales rep was friendly and responsive to all my concerns. He made sure to leave additional notes for the installers. The install went smooth. This was a one-day project and the installers took care to keep things clean and tidy. After everything was finished, they walked us though the features of our windows and doors and made sure that we were satisfied with the work done. We have lived with their products now for 10 years and I’m happy to say we have never had any issues. These are quality product made by a great company.

Illinois Energy Windows & Siding

Kevin, thank you so much for your wonderful review! We’re thrilled to hear that your fourth experience with us was just as positive as the previous ones. It’s fantastic that the sales rep addressed all your concerns and that the installation team maintained a high standard of cleanliness and efficiency. We’re especially pleased to know that our products have been serving you well for the past decade. Your satisfaction is our top priority, and we’re grateful for your continued trust in our company. If you have any more projects in mind or need further assistance, don’t hesitate to reach out. Thanks again for your kind words and for being a valued customer! Illinois Energy Management

Door Installation

Rich C.

Illinois Energy delivered a great quality product. We had 3 doors installed and two of them were uniquely challenging. But the installer was highly skilled and overcame those challenges. Illinois Energy also engaged us during challenges and rectified any scenarios during these situations. Affordability combined with their warranty package could not be honored by their competitors. The only aspects I'd change would be the delayed install date and installer scheduling which took 4 days instead of 2 resulting in 4 separate visits during 3 weeks. Aside from this, I could definitely see us using Illinois Energy for any future door installations.

Illinois Energy Windows & Siding

Thank you for your thoughtful review! We’re delighted that you’re pleased with the door quality and the skill of our installer. We apologize for the delay and scheduling issues and appreciate your patience. Your feedback helps us improve, and we look forward to working with you again in the future. If you need anything else, just let us know! Illinois Energy Management

Window Replacment

Jennifer B.

We had three front windows replaced by Illinois Energy. All the staff that we encountered was friendly and was willing to answer our questions. We were kept up to date on the progress of our windows being made. The installers were punctual and efficient. They took care in their installation of the windows and our house surroundings. When the job was complete, the installers took the time to explain how the windows operated and left the area clean. We are pleased with the window quality and are quite happy with the dual option of opening the windows from top or bottom. We will be using Illinois Energy in the future for any future window needs.

Illinois Energy Windows & Siding

Jennifer we are so happy to hear that your experience with our company from beginning to end was a pleasant one. Thank you for taking the time to share your experience. We look forward to working together again in the future! Illinois Energy Management

Professionally run company

Andrew A.

We had our sliding patio door replaced by Illinois Energy. Beyond a high quality door that glides open and shut with a smooth lock, there’s a whole professional team that stands behind it. The crew that installed the door did an excellent job. They really took extra time to make sure it was perfect. It’s so nice, it has motivated me to start fixing up my house, working out from the door, because I want our house to match the quality look of the door. It sounds silly but I actually enjoy going in and out of that door because it glides so smoothly as opposed to the old door. The warranty is what really sold me initially and the fact they have an established actual physical location let’s me know they’re going to be there for any after-installation needs. I highly recommend Illinois Energy and look forward to working with them for future projects.

Illinois Energy Windows & Siding

Andrew, thank you for your kind words! We're glad you're able to enjoy going in and out of your house again! Please let us know if there is anything else we can do for you, we're only a call away. Illinois Energy Management

Great Experience!

Ken K.

We just bought more windows from Illinois Energy Window and Siding. They are flexible and very knowledgeable. The installers were courteous and clean.

Illinois Energy Windows & Siding

Ken! We're happy that we were able to help you out again and that everything went well. Thank you for your business and support! 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