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5.0
463 reviews

Love Our New Door- Looks great

Jim Y.

Great new exterior and screen door. Looks great and fits perfectly. Sales process was excellent and so was the door install. Everyone involved was very professional and courteous. We will use Illinois Energy Window and Siding again for future jobs!!

Illinois Energy Windows & Siding

Thank you for sharing your experience! We’re so glad to hear Tom Burke was helpful, courteous, and knowledgeable in presenting your exterior door options, and that the installation went smoothly with a skilled and professional installer. It’s great to know everything met your expectations from start to finish. We truly appreciate your trust and look forward to working with you again for any future doors or windows you may need. Illinois Energy Management

New kitchen windows

Don M.

I would recommend Illinois Energy to anyone I know. Workers were professional with a pleasant demeanor. On time. Took time to care for the surroundings. Ultimately, you get what you pay for.

Illinois Energy Windows & Siding

Thank you for your kind words and recommendation! We’re so glad to hear our team was professional, punctual, and respectful of your home and surroundings throughout the project. It means a lot to know you feel the quality and service were worth the investment. We truly appreciate your support and thank you for choosing us! Illinois Energy Management

New Windows

Dietrich S.

Hardworking professionals installed twelve new windows in our house. They look beautiful, and we notice the difference.

Illinois Energy Windows & Siding

Thank you so much for the kind words! We’re glad to hear you’re happy with your new windows,it means a lot to our team. We take pride in our work, and it’s great to know it showed. If you ever need anything in the future, we’re here to help! Illinois Energy Management

Great Experience from Top to Bottom!

Karen S.

We are so pleased with the customer service, craftsmanship and work ethic of Illinois Siding. Starting with Garrett who introduced the product to making the final sale with clarity and ease to John, the foreman who was there as the work began and came back more than a few times to make sure it was done to our satisfaction, addressing any issues immediately. The work crew ,and there were as many as ten at any time, were great at their craft, excellent eyes for the small details and amazing at cleaning up and stowing their gear at days end. The gents were friendly and courteous, with a shout out to Francisco for entertaining my questions! The siding is beautiful and was a great color choice for us. Shutters were added, new roof vents as well and new porch posts too. It looks like a brand new house! We highly recommend Illinois Energy for siding work and excellent customer service!

Illinois Energy Windows & Siding

Thank you for your wonderful and detailed review! We’re thrilled to hear how pleased you are with the entire experience from Garrett guiding you through the process, to John ensuring everything was completed to your satisfaction, and our crew delivering high quality craftsmanship with attention to detail. It’s great to know the team made a positive impression with their professionalism and courtesy, and we’ll be sure to pass along your shoutout to Francisco as well. We’re especially glad you love the final result and your home’s new look. Thank you for your recommendation and for choosing us! Illinois Energy Management

Great experience

Brian U.

This is my second experience using Illinois Energy and I must say both encounters were seamless. From sales to financing to installation to customer service all aspects went smoothly and on schedule. I will definitely recommend and use Illinois Energy in the future.

Illinois Energy Windows & Siding

Thank you for your continued trust in us we truly appreciate your loyalty! We’re glad to hear both of your experiences were smooth and stress free, and that working with the same salesperson made the process even more seamless. From the initial meeting through installation, it means a lot to know everything met your expectations. Thank you again for choosing us for your home improvements! Illinois Energy Management

Window installation

DARIO D.

Everything went well on installation day. Crew came on time and cleaned after themselves. We will see the quality of product in long run then will come back to the review.

Illinois Energy Windows & Siding

Thank you for your feedback! We’re glad to hear everything went smoothly on installation day and that our crew was punctual and respectful of your home. We appreciate your honest approach and look forward to hearing your thoughts on the product over time, please don’t hesitate to reach out if you need anything in the meantime. Illinois Energy Management

Great New Entry

Don V.

Illinois Energy had already replaced all of our windows and our sliding glass door. So when our front door panels were separating we went to them. We now have a new maintenance free entry way! It was done in hours and made the front look new inside and out!

Illinois Energy Windows & Siding

Thank you for your continued trust in us we truly appreciate your loyalty! We’re glad to hear you’re enjoying your new front entry door and that the installation was completed quickly and seamlessly. It’s great to know the new door has already caught your neighbors’ attention! Thank you again for choosing us. Illinois Energy Management

So happy with our new windows!

J T.

Friendly and fast, IEWS did such a great job replacing our whole house - 19 windows! No pressure sales and very honest with questions and concerns. They also had the best warranty of the vendors we spoke with. Crews were quick and respectful of property. Thanks!

Illinois Energy Windows & Siding

Thank you for your kind feedback! We’re glad to hear you had a great experience with your full home window replacement and that our team delivered friendly, efficient service from start to finish. It’s wonderful to know you appreciated the no pressure approach, honest communication, and strong warranty. We’ll be sure to share your compliments with the crew. Illinois Energy Management

Window replacement

Carol G.

We are repeat clients of Illinois Energy (IEWS). Our first project with them was replacement of a large slider family room window, a few years back. They did a wonderful job with that: excellent service, install and follow up. This year, (2026) we once again chose Illinois Energy to replace older windows in our kitchen and all bedrooms. It was good to work once again with our efficient and knowledgeable sales/marketing person, James, to set up the project. Their Worthington Windows are very well-made and constitute a significant home upgrade with a transferable lifetime warranty. The install crew arrived on-time. They were a courteous and skilled team that cleaned up the work site completely when they finished. It was another great experience with Illinois Energy! We recommend and look forward to working with Illinois Energy again in the future!

Illinois Energy Windows & Siding

Thank you for your continued trust and for being a repeat customer, we truly appreciate your loyalty. It’s great to hear that both your past and recent experiences met your expectations, from working with James to the quality of the Worthington Windows and the professionalism of our installation crew. We’re glad you’re enjoying the upgrade, and we look forward to working with you again in the future. Illinois Energy Management

Back door and storm door installation.

Eric M.

I had the pleasure of working with Illinois Energy Windows & Siding after soliciting proposals from several established companies. The pricing was competitive and warranty terms were comparable to other vendors. The primary factors influencing my decision were Illinois Energy's strong reputation, longevity in the industry, and my preference to support locally-based Illinois companies. The craftsmanship demonstrated by the assigned installer was exceptional. He reconstructed the entire door frame and installed two high-quality doors—the rear entry door and storm door—both of which significantly enhanced the property's aesthetic appeal. He also replaced the transom window above the door, which complemented the installation beautifully. The installation eliminated all drafts from the rear entry. Even with the primary door open, the storm door provides an effective seal with no air infiltration. The door seals are robust, creating noticeable pressure when opening and closing. The installer demonstrated meticulous attention to detail, ensuring all work met the highest standards. Upon completion, he provided a comprehensive walkthrough of all installed components, supplied multiple key sets, and explained the operation of the integrated screen and internal blinds. He also demonstrated the storm door's seasonal functionality. Communication throughout the project was clear, precise, and professional. Scheduling was executed flawlessly with no confusion regarding appointment t

Illinois Energy Windows & Siding

Thank you for your thoughtful and detailed review, we truly appreciate you taking the time to share your experience. We’re glad to hear that our team’s craftsmanship, attention to detail, and clear communication met your expectations from start to finish, and it’s especially rewarding to know the installation has improved both the comfort and appearance of your home. We will be sure to pass along your kind words to the installer, as he takes great pride in his work and will appreciate the recognition. 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