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5.0
353 reviews

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

Happy with new door

Zac S.

Could not be happier with the ordering and installation process. Everyone I spoke with was polite and knowledgeable. Installation was fast and clean.

Illinois Energy Windows & Siding

Thank you so much for the positive feedback! We're happy to hear that you had a smooth experience with both the ordering and installation process. Our team works hard to provide great service and we're glad it showed. Let us know if there is anything else we can help you with! Illinois Energy Management

Best door ever

Carl A.

We just got our new Speakeasy door installed today from Illinois Energy Windows and Siding. According to my wife, I was so excited last night that I was sleep-talking about passwords. I can’t wait to host a party or hand out candy to trick-or-treaters on Halloween. Who knew a door could be so much fun! The installers did an awesome job I could not be happier with the whole experience.

Illinois Energy Windows & Siding

Thank you so much for the fantastic review! We're thrilled to hear that you're loving your new door. It sounds like it's already making an impression in more ways than one! We’re glad the installation went smoothly and that you’re excited for all the fun moments to come. If you ever need anything in the future don't hesitate to reach out. Illinois Energy Management

Great windows and service

Cindy K.

Garrett Howard did a great job presenting the windows and all the features. The installation crew was very professional. They cleaned up daily. Windows were installed in the timeframe designated. All features of the windows were reviewed after installation and questions were answered politely.

Illinois Energy Windows & Siding

Thanks for your review! We’re so glad you’re happy with your new windows. It’s great to hear that our installation crew made the process smooth and took care of your home. Illinois Energy Management

Great company

Jennifer M.

Had such a great experience! Prices are very competitive and more importantly, the quality of the product was fantastic. I already noticed a significant improvement in temperature control and decrease in exterior sound after my door installations. The installation professional did a great job as well!

Illinois Energy Windows & Siding

Thanks so much for the awesome review! We’re so glad to hear you're noticing the improvements with your new doors. It’s great to know our prices and quality were what you were looking for. Please let us know if there is anything else we can do for you! Illinois Energy Management

Love my new windows

Julie K.

Love my new windows, so much sunlight comes in now unlike before. Very professional team that installed the windows, very clean and took care of cleaning up after themselves.

Illinois Energy Windows & Siding

We're so glad to hear you're enjoying the extra sunlight with your new windows! It’s great to know our team made the installation process smooth and tidy. Thanks for the kind words and for choosing us. Please let us know if there is anything else we can do for you! Illinois Energy Management

Top Notice

Kelsey D.

I've worked with IL Energy for two home projects now. New gutters and a sliding back door replacement. They were done quickly, very professional and cleaned everything up. I already have plans to start another project with them soon. Their office was very communicative about scheduling (rescheduling due to weather) and follow up to ensure I was happy with the work competed.

Illinois Energy Windows & Siding

Thank you so much for the kind words! We're thrilled to hear that you had a great experience with us with both projects! It's always our goal to provide quick professional service while keeping everything clean and organized. We really appreciate your trust in us and look forward to helping with your next project. Let us know when you're ready to get started! 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