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164 reviews

Couldn't ask for better...

Jennifer P.

We have had a relationship with Illinois Energy for about 5 years now with multiple rounds of installation as our budget allowed. They have now replaced all of our windows, the front door and gutters and every experience has been stellar. From the initial sales meeting to the measuring appointment through installation, every employee and crew has been friendly, responsive to questions, knowledgeable, efficient and detail oriented. We never felt pressured to add on services or go beyond what we could afford but knew we would get the same quality and service each time we were ready for another round. It is almost sad that we don't have any more for them to do! We will not forget the small personal touches or the above and beyond moments each of the team members and crew left behind. Thanks again for helping make our home improvement journey a good one!

Illinois Energy Windows & Siding

Hi Jennifer! Thank you for taking the time to share your experience with us! We truly appreciate it. I am happy to hear that we were able to go above and beyond your expectations. We appreciate your business! Illinois Energy Management

great window and service

Nancy Z.

We have had Illinois Energy replace all the window is our house over a couple years. We always went back when we were to replace more windows and have always been highly satisfied. Would recommend them to anyone

Illinois Energy Windows & Siding

We appreciate your business, Nancy! Thank you for the recommendation! Illinois Energy Management

Amazing company

Candy M.

This is an amazing company. Everything was explained throughout about fiancé, installation, and when will window arrive. The installers were very good and professional. I recommend for anyone who needs windows to check out this amazing company! Thank you for installing our window!

Illinois Energy Windows & Siding

Hi Candy! I'm glad we were able to get the job done right for you! We appreciate your business! Illinois Energy Management

Fantastic Company and Product

Roel Q.

We have hired Illinois Energy for all of our window projects, and we have always been pleased with the quality of the windows and the excellent customer service. They just finished the last of our window replacements. We are already seeing better energy efficiency in our home and the noise reduction is amazing! We live near a busy street next to a train station, and we hear next to nothing since having these windows installed. Illinois Energy is an excellent company to work with.

Illinois Energy Windows & Siding

Hi Roel! We are happy that you are noticing a difference in your windows! Thank you for sharing, and for your business! Illinois Energy Management

Couldn't be happier

Wendy P.

We most recently had a portion of our windows replaced on the back of our home along with our sliding glass patio door. From the time we sat down to meet with the personable sales manager to the incredibly respectful installation crew we could not have been happier. They arrived on time and left no mess for us to clean up. They knew what our needs were and were not pushy at all. The customer service department is very helpful and easy to talk to. Our windows and patio door are easy to operate and keep out the draft. We will definitely be using them again to replace more windows in our home.

Illinois Energy Windows & Siding

Hi Wendy! Thank you for sharing! We appreciate your kind words about our team and are happy to hear that you are satisfied with the work. We will be ready for your next project! Illinois Energy Management

Beautiful doors

Connie H.

Illinois energy. Remove my windows and replaced with French doors leading out to my backyard. They were very professional very helpful. Did an excellent job.

Illinois Energy Windows & Siding

Hi Connie! We appreciate your business! Illinois Energy Management

Upstairs windows

Jennifer C.

During the pandemic, we replaced our family room windows and sliding door. I shopped around and had 4 other companies come out and give us estimates. Illinois Energy Windows gave us the best price and had the best warranty. 2 years later, we went back to them to finish our upstairs. We replaced 8 more windows and again, price was reasonable. The workers for both of the times were very nice and really cleaned up after them selves. They moved all our furniture and returned it when they finished. This company has been around for over 20 years….they aren’t going anywhere! They also have the best customer service….this is a family owned business so make sure if you are looking for windows, support Illinois Energy Windows & Siding.

Illinois Energy Windows & Siding

Hi Jennifer! Thank you for the kind words about our staff. We are thrilled to be your top choice for windows, not once, but twice! Thank you for your business. Illinois Energy Management

Excellent windows

Amy S.

I have had all of my windows replaced by Illinois Energy and I would highly recommend them. Everyone I have worked with has been great and very professional. The windows are really good quality.

Illinois Energy Windows & Siding

Thank you for your review, Amy! We are glad to hear that you had a good experience with us. Thank you for your business! Illinois Energy Management

IL Energy window replacement

Mark S.

We contacted IL Energy because a previous homeowner used the company in the past and were very satisfied. We are so glad we did. We had 2 sliding windows replaced and the new front windows look great. We appreciate the time and effort staff took to help us select the right windows. Our sales rep was so knowledgeable about the product and company warranty. Staff was easy to talk to and access by phone. They worked with us to accommodate our schedule and determine the best date of installation. It was a warm day, but staff worked tirelessly with great skill and courtesy. We would highly recommend IL Energy.

Illinois Energy Windows & Siding

Hi Mark! We are so happy to hear you are satisfied with your new windows! We appreciate you taking the time to share your experience. Thank you for your business! Illinois Energy Management

Five-Star Experience!

Jeff E.

Working with Illinois Energy was the best decision we could have made for replacing our patio door! From start to finish, they were professional, responsive and went above and beyond to make everything work for us. The free estimate visit was booked quickly and their knowledgeable and friendly salesman was honest and transparent about their products and pricing as well as competitors. The day of installation was a breeze as all the work was completed in the morning and a minor unexpected discovery led to no additional charges at all. The customer service was excellent as they followed up to make sure everything went smooth. The incredible and thorough warranty coverage included with everything is truly the best peace of mind you could ask for. The leaking issues with the previous door are a thing of the past and we know this door will last us for the long run and save us a ton on energy costs. I highly recommend Illinois Energy for anyone looking for windows or doors!

Illinois Energy Windows & Siding

Hi Jeff! Thank you so much for your extensive review. We are so happy to hear of your pleasant experience with us, from start to finish. Thank you for your business! 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