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5.0
252 reviews

Windows and patio door Purchase and install instal

Karen L.

From my initial contact with my salesman, to the customer service reps to the installation crew. I am very happy with my windows and patio doors that were installed, my windows came in sooner than expected, and the installation crew was very prompt, they were very meticulous with the installation and cleanup. I am very happy with my overall products and would definitely recommend this company to anyone.

Illinois Energy Windows & Siding

Thank you so much for your wonderful review! We're thrilled to hear that you had such a positive experience from start to finish. It’s great to know that everything—from the initial contact to the installation—met your expectations and that you’re pleased with the windows and patio doors. We really appreciate your recommendation and are grateful for your support. Illinois Energy Management

Tims windows

Tim L.

windows are great! much better view than old ones. Installers completed on time and cleaned up and showed me how to work the windows. definitely would recommend them

Illinois Energy Windows & Siding

Thank you so much for your kind words! We're thrilled to hear you're enjoying the improved view and that our team made the installation process smooth and easy for you. Thank you for your business and support! Illinois Energy Management

Front door

Cherie F.

We ordered a front door from Illinois Energy. It took some time but soooo worth the wait. Our installer was amazing. He worked on the hottest day to date and just kept going. He was meticulous and professional. Installed and cleaned. It's beautiful @

Illinois Energy Windows & Siding

Thank you for your fantastic review! We're so glad you think the wait was worth it and that our installer’s hard work in the heat paid off. It’s great to hear that he was meticulous and professional throughout the process. We’re thrilled that you’re enjoying your beautiful new front door. If you need anything else, don’t hesitate to reach out. Thanks again for your feedback! Illinois Energy Management

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

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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