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5.0
309 reviews

11 Windows Replaced

Corinne D.

The whole experience was amazing. The consult and quote we did on a Saturday with my kids all running around. James was patient and so nice to work with. They measured all the windows the next day or two and The windows were ready in three weeks after signing. The day of they showed up on time. The whole process took 4.5 hours. Five guy team for 11 windows replaced. They put carpet protector everywhere and cleaned up everything. They had to cut trim on front of house to get old window out however the trim they put back that encased the window looks great and like it was built that way. I have wainscoting under a window and was worried it could be damaged and they did a fantastic job replacing the window. Nothing dented or scraped. They made sure Everything was perfect before leaving. They even ran through all the functions of the window again after they were all installed. The outside was cleaned up after as well. There was nothing for us to do other than sit and watch and ask questions, which they were more than happy to answer. We love our windows and felt a difference in the heating of these rooms THAT night. Great windows - great service- great price. Will definitely be using them again!

Illinois Energy Windows & Siding

Thank you so much for sharing your experience! We're so glad that everything went smoothly from the initial consultation to the installation process. James and the team always strive to provide excellent service and it’s great to hear that they made everything easy and stress free for you even with the kids around. We’re also happy to hear you’re already noticing a difference with the new windows. We appreciate your kind words and look forward to working with you again in the future! Illinois Energy Management

Thank you Illinois Energy

Janine D.

Illinois Energy provides an outstanding customer experience. Derek was informative but not pushy. Product is high quality and worth the wait. Installers were professional, efficient and took care to protect the work areas.

Illinois Energy Windows & Siding

Thank you for the great review! We’re happy to hear that Derek was able to guide you through the process and that everything went smoothly with your installation. Please let us know if there is anything else we can do for you. Illinois Energy Management

Window Replacements

Lynn R.

Illinois Energy Windows & Siding replaced 3 huge windows in the front of my house. James was extremely knowledgeable. He answered all of my questions and helped with the design change that I made to 2 windows. The windows arrived and were installed much sooner then expected. The installers were polite, friendly, answered more of my questions, installed new siding that was removed to install the windows and cleaned up everything before leaving. They did a fantastic job. No more drafts. I highly recommend Illinois Energy Windows & Siding.

Illinois Energy Windows & Siding

Thank you so much for your kind words and for taking the time to share your experience! We're glad to hear that James was able to assist with your design changes and that our team was able to deliver and install your new windows ahead of schedule. We always aim to provide excellent service, from start to finish, and it's great to know that you're happy with the results. Illinois Energy Management

Excellent Communication!

Emily B.

We had our windows replaced last week and the whole experience was smooth and seamless. The process started with a representative coming to our home to discuss our needs and wants. We were put at ease and painted a clear picture of how the whole process works, the quality of the product, timeline, etc. The next day we received a follow up call to answer any further questions. Then the following week a representative was sent out to measure our windows and provide more in-depth knowledge of the product and process. We received a time frame for when the windows would be ready and it was spot on. Within a week of our windows being ready to go, we had the installation team here and working hard. They were detail oriented, respectful, had-working, and cleaned up everything. The new windows are absolutely amazing and we are so happy! I think the best part of this whole experience was the communication. Illinois Energy goes above and beyond making sure you are at ease. Definitely recommend!!!

Illinois Energy Windows & Siding

Thank you so much for your detailed review! We're so happy to hear that your experience was smooth and seamless from start to finish. It’s great to know that our team’s communication, attention to detail, and dedication made a positive impact. We take pride in ensuring our customers are informed and comfortable every step of the way so it's wonderful to hear that you felt well taken care of. Thank you for your business, support, & feedback! Illinois Energy Management

Great overall experience

Chris P.

Great experience from initial contact to installation. Quality of the door and the installation were top notch. Appreciate the fact that they manufacture and install. Installation isn't outsourced and the quality and attention to detail reflects that.

Illinois Energy Windows & Siding

Thank you for taking the time to leave a review! We're glad you had a great experience with us from start to finish. It's wonderful that you're already seeing the benefits of the upgraded door and we’re glad the installation went smoothly. Let us know if there is anything else we can do for you. Illinois Energy Management

Excellent Door Installation

Nadi P.

Illinois Energy installed a new back and storm door to our house. Our experience with them from quote to final installation was phenomenal. The sales team was helpful and there was no pushy sales pitch. They cared about what we needed. The price was competitive, everything was completed on time and they checked in multiple times throughout the process including a follow-up call the day after installation to make sure we were satisfied. The installer was friendly and explained each step along the way. He even replaced some rotted wood that he found when removing the old door. After installation he cleaned everything up like he wasn’t even there and then thoroughly explained all of the features of the new doors before leaving our house. Will say this is by far the best experience we’ve had with home repairs in a long time. Thanks Illinois Energy!!

Illinois Energy Windows & Siding

Thank you so much for your kind review! We're so happy to hear that you had such a great experience with us from the initial quote to the final installation. Our team always strives to ensure our customers are fully satisfied and it’s great to know that our approach made a difference. We truly appreciate your feedback and are grateful for the opportunity to work on your home. If you ever need anything in the future don’t hesitate to reach out. Illinois Energy Management

Window Renovation

Sean F.

The sales agent was respectful and no-nonsense, the work crew was professional, efficient and respectful of my property. Customer service was easily reachable, understanding and very helpful in resolving any issues that we'd had with the installation. Though one of the more expensive options out there, we definitely got what we paid for; excellent quality.

Illinois Energy Windows & Siding

Thank you for your feedback! We're glad to hear you were pleased with the quality of our windows and the professionalism of our team. We truly appreciate your understanding regarding the installation issue and are happy that we could quickly resolve it for you. Let us know if there is anything we can do for you. Illinois Energy Management

Front door installation

Ed G.

The entire process from start to finish was handled professionally. Jerry installed the door, he was neat and cleaned up after the installation. He did an exceptionally thorough job and made sure that everything was to our satisfaction. I will recommend Illinois Energy to friends in the future.

Illinois Energy Windows & Siding

Thank you so much for the kind review! We're so happy to hear that you're happy with your new front door and the installation process. It's great to know the installer provided excellent service and made sure everything was completed to your satisfaction. Don't hesitate to reach out if you have any other projects you need taken care of! Illinois Energy Management

Happy we made this choice.

Jerry M.

We chose to call Illinois Energy Windows for a quote on replacing 6 lower level windows after reading the customer reviews. They were very thorough in explaining the manufacture, warranty and installation of the windows. We also appreciated the lack of a hard sell. The installers were professional and the install took less than a day. They did not mind my asking questions and took the time to explain certain steps involved. We were impressed with how clean they left the site, inside and out. They even washed all the new windows. We would highly recommend Illinois Energy to anyone looking for quality window replacements.

Illinois Energy Windows & Siding

Thank you so much for the kind words and detailed feedback! We're thrilled to hear that you had a great experience with us from start to finish. It’s always our goal to provide thorough information and a stress-free process so we're glad that stood out to you. Our team takes pride in their work and it’s wonderful to know you were impressed with the professionalism and attention to detail. Illinois Energy Management

Illinois Energy Windows and Siding

Paul F.

The service was outstanding. Prior to instillation they kept us well informed and were flexible with the instillation date. Instillation went very smoothly. The crew was courteous, efficient, answered many questions I had, and cleaned up extrememly well. There was minimum disruption for us. Overall a very good product and servicing. Cost was a little more than I wanted but the lifetime warranty that includes all parts and labor made it worthwhile. And it looks great.

Illinois Energy Windows & Siding

Thank you for your thoughtful review! We’re so happy to hear that you had a smooth experience from start to finish. It’s great that our team was able to keep you informed and accommodate your schedule. We’re also glad you're pleased with both the product and the warranty. You're covered if you ever need anything! Please let us know if there is anything else we can do for you. 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