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5.0
526 reviews

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

Window Replacment

Jennifer B.

We had three front windows replaced by Illinois Energy. All the staff that we encountered was friendly and was willing to answer our questions. We were kept up to date on the progress of our windows being made. The installers were punctual and efficient. They took care in their installation of the windows and our house surroundings. When the job was complete, the installers took the time to explain how the windows operated and left the area clean. We are pleased with the window quality and are quite happy with the dual option of opening the windows from top or bottom. We will be using Illinois Energy in the future for any future window needs.

Illinois Energy Windows & Siding

Jennifer we are so happy to hear that your experience with our company from beginning to end was a pleasant one. Thank you for taking the time to share your experience. We look forward to working together again in the future! Illinois Energy Management

Professionally run company

Andrew A.

We had our sliding patio door replaced by Illinois Energy. Beyond a high quality door that glides open and shut with a smooth lock, there’s a whole professional team that stands behind it. The crew that installed the door did an excellent job. They really took extra time to make sure it was perfect. It’s so nice, it has motivated me to start fixing up my house, working out from the door, because I want our house to match the quality look of the door. It sounds silly but I actually enjoy going in and out of that door because it glides so smoothly as opposed to the old door. The warranty is what really sold me initially and the fact they have an established actual physical location let’s me know they’re going to be there for any after-installation needs. I highly recommend Illinois Energy and look forward to working with them for future projects.

Illinois Energy Windows & Siding

Andrew, thank you for your kind words! We're glad you're able to enjoy going in and out of your house again! Please let us know if there is anything else we can do for you, we're only a call away. Illinois Energy Management

Great Experience!

Ken K.

We just bought more windows from Illinois Energy Window and Siding. They are flexible and very knowledgeable. The installers were courteous and clean.

Illinois Energy Windows & Siding

Ken! We're happy that we were able to help you out again and that everything went well. Thank you for your business and support! Illinois Energy Management

Great new windows

Linda K.

Installers showed up on time. They removed the old windows and installed the new ones in the estimated time that we were given. They also showed us how to use the special features ( locking and tilting to clean). There was a follow up call after everything was complete. The windows have made a great improvement.

Illinois Energy Windows & Siding

Thank you for sharing your experience, Linda! We are glad it was a good one. We appreciate your business! Illinois Energy Management

New windows

Bethani W.

Company was very professional and easy to work with. Windows are high quality and worth the money.

Illinois Energy Windows & Siding

Thank you for your rating, Bethani! Illinois Energy Management

Job Well Done

Zayda S.

Illinois Energy Windows & Siding, Inc. removed an existing window, cut through brick and installed a sliding glass door in my home. They were easy to work with. They were professional. Everything was completed in a day. Now I have a much more beautiful dinning room with more light and a full view of my private backyard. Thank you for all you did on this project. I highly recommend them.

Illinois Energy Windows & Siding

Hi Zayda! We appreciate your kind words and your satisfaction with our company! Thank you for your business and support! Illinois Energy Management

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4.74 out of 5
based on 2,645 Reviews
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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