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5.0
387 reviews

Door replacement

Mark C.

A+ experience with Illinois Energy!! Replaced both front and back doors. Qualified and experienced installer, great product and an improvement to the look and efficiency of our home.

Illinois Energy Windows & Siding

Thank you for the kind words! We’re so glad to hear you had a great experience and that you’re loving your new door. A smooth installation and a happy homeowner is exactly what we aim for, we appreciate you choosing us! Illinois Energy Management

Door replacement

Mark C.

A+ experience with Illinois Energy!! Replaced both front and back doors. Qualified and experienced installer, great product and an improvement to the look and efficiency of our home.

Illinois Energy Windows & Siding

Thank you for the kind words! We’re so glad to hear you had a great experience and that you’re loving your new door. A smooth installation and a happy homeowner is exactly what we aim for, we appreciate you choosing us! Illinois Energy Management

New Doors!!

Mark C.

A+ experience with Illinois Energy!! Replaced both front and back doors. Qualified and experienced installer, great product and an improvement to the look and efficiency of our home.

Illinois Energy Windows & Siding

Thank you for the kind words! We’re so glad to hear you had a great experience and that you’re loving your new door. A smooth installation and a happy homeowner is exactly what we aim for, we appreciate you choosing us! Illinois Energy Management

Excellent sliding door replacement

Jan H.

I had two sliding doors and four adjacent fixed pane windows installed by Illinois Energy Windows & Siding. These are custom sized, higher and wider than normal. I was impressed with the look of the windows, the close match of the inside and outside color, and the expertise of the installation. The workers did an outstanding job of making it all look like it was original and an outstanding job of cleaning up the work site.

Illinois Energy Windows & Siding

Thank you for the kind words! We're so glad you're happy with your new sliding doors and custom sized fixed pane windows. It's great to hear that the color match, craftsmanship, and overall appearance met your expectations, especially on such a unique project. Our team takes pride in making every installation look seamless and original, and we're happy the cleanup and attention to detail stood out. We truly appreciate the opportunity to work on your home. Illinois Energy Management

Great service

Andrea J.

When we moved into this house in 2016 we received the unfortunate news that all of our windows needed to be replaced. We took a chance on Illinois Energy Windows & Siding because of the attention to quality they put into not only manufacturing their windows but also installation. Their installation crews are very professional, respectful, and do quality work. We are very pleased with our windows and couldn't be happier with the peace of mind they bring.

Illinois Energy Windows & Siding

Thank you for sharing your experience! Needing to replace all your windows right after moving in is never easy, but we’re so glad you took a chance on us. It’s great to hear that the quality of our products and the professionalism of our installation crews made a lasting impression. Providing peace of mind through reliable workmanship and long-lasting materials is exactly what we aim for, and we’re thrilled to know you’re happy with the results. Illinois Energy Management

New Sliding Glass Door - AMAZING

Jeremy M.

We had a fantastic experience with Illinois Energy Windows and Siding! From the start, our sales rep was knowledgeable and thorough, and the warranty—especially on the installation—gave us real peace of mind. Our custom sliding glass door arrived earlier than expected, and the installation crew was professional, clean, and worked efficiently—even through less-than-ideal weather. The new door is a huge upgrade from our old one—it glides effortlessly, locks easily, and looks beautiful inside and out with flawless trim and caulking. We’re so happy we chose this local company. Highly recommend!

Illinois Energy Windows & Siding

Thank you so much for sharing your experience! We’re thrilled to hear that your new sliding glass door has made such a positive difference in your home, especially with how active and family focused your space is. From the smooth, one finger glide to the flawless interior and exterior finish work, it’s great to know the upgrade has delivered both function and style. We’re glad our team could provide a seamless process from helpful sales guidance to professional installation even with challenging weather. It means a lot to us that our warranty, craftsmanship, and customer care stood out and helped make your decision easier. We're grateful you chose us for this project and truly appreciate the recommendation! Illinois Energy Management

Excellent patio door & installation project mgmt

Sherry W.

I had a new, custom, patio door installed from Illinois Energy Windows & Siding - July 2025. My new patio door is a great product and the company’s sales / ordering / installation process from requirements gathering, to project review and measurements to product delivery timeframe to installation (prep-install-cleanup) and final billing were one of the best renovation project management processes I’ve experienced. (and I’ve gone through several with various companies over the last two years). I was replacing an existing patio door that was 50 years old with a broken screen and a wooden base starting to rot. I paid a little more for quality, warranty & experience (than other bids I received) but with the final product along with Illinois Energy Windows and Siding’s exemplary professionalism, communication, experienced & detail-oriented installation people, I felt the price was well worth it! Their teams communicated the process from start to finish, expertly managing my expectations regarding each part of the project. The installers were experienced and very respectful of my property, well preparing the work area to contain the construction debris both inside and outside as well as doing a great cleanup job after. The new patio door is fantastic; beautifully trimmed, well insulated and with a smooth, easy, gliding (open-close)! I highly recommend Illinois Energy Windows & Siding for your home projects.

Illinois Energy Windows & Siding

Thank you for the fantastic review! We're so glad to hear that your experience with us from sales and measurements to installation and final cleanup was one of the best renovation processes you've had. It's great to know our team communicated clearly, respected your property, and delivered a beautifully installed patio door that meets your expectations. We truly appreciate your trust in us and are thrilled that you're enjoying the smooth operation and quality finish of your new door! Please reach out if there is anything else you need. Illinois Energy Management

Distinctive doors and installation

Sandie B.

My husband and I visited the IL Energy Windows and Siding showroom and were impressed by the quality appearance and functionality of the many styles of doors on display. Since that visit we purchased a new sliding door to our deck and, somewhat later, a new front entry door and sidelight. The price quoted was slightly higher than competitors on the sliding door, but, because of repeat customer discount, very reasonable on the front entry system. What sold us was the straightforward presentation by the sales representative, Derek, with no pressure and no blanket criticism of competitors products. We have endured too many sales presentations that insult our intelligence, Derek knew he had a high quality door at a fair price and conveyed that effectively. We love both the sliding and entry doors. The glass in the sliding door did not radiate the cold air during bitter winter days, as our previous door had done. The entry door is just recently installed, but the look is modern and clean-lined as we wanted and the installation was impeccable. We are proud of our choices and am grateful to all the staff at Ill Energy for their professional and personal service.

Illinois Energy Windows & Siding

Thank you for sharing your thoughtful experience! We’re glad your visit to our showroom left a great impression and that Derek could provide clear, honest information without any pressure. It means a lot that you appreciate the quality and functionality of your new sliding and entry doors, and that they’re performing well in your home. We take pride in our professional and personal service, and we’re honored to have earned your trust as repeat customers. Enjoy your beautiful doors and thank you again for choosing us! Illinois Energy Management

I Love My Half Moon Windows!

Terry M.

This is the 2nd time I have used Illinois Energy to replace my home windows. I had 2 different type of installations and could not do all at once. so they completed the last phase in June of this year. I worked with Nate who had great patience with my home owners organization in order to get their approval. The people that work for this organization took great care with my outside plantings as well as inside the house. Their method saved me hundreds of dollars because I did not have to replace window treatments or repaint the interior or exterior of my home once the new windows were installed. There was also minimal cleanup inside the home once they left. Would definitely use them again.

Illinois Energy Windows & Siding

Thank you for your continued trust, it means a lot to us! We're glad to hear the team was careful with your plants and that the installation went smoothly with minimal disruption. It's always our goal to leave things just as we found them (or better!), so we’re happy everything turned out just right. Looking forward to working with you again in the future! Illinois Energy Management

Professional and respectful

Lynn P.

Professional and respectful crew. Treated our home respectfully and cleaned up perfectly. Beautiful doors.

Illinois Energy Windows & Siding

Thank you for the kind words! We're so glad you love your new door and that our crew made a great impression. Treating your home with care is always a top priority for us. We appreciate your feedback and hope to work with you again in the future! 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