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5.0
476 reviews

Great experience

Josh T.

Second time coming back to use Illinois energy for our windows. Great service and price as usual. Absolutely recommend

Illinois Energy Windows & Siding

Thank you for your continued trust in us! We’re honored that you chose us again for your window project and are so glad to hear you received the same great service and value you expected. Repeat customers are one of the greatest compliments we can receive, and we truly appreciate your recommendation. We look forward to helping with any future home improvement projects! Illinois Energy Management

Excellent Service and Product

Michael R.

Replaced the front entry door with a composite from Illinois Energy Windows & Siding. They came out and showed us all the options and colors. We chose a red door and ordered it. It came in quickly and they scheduled the install right away. The technician showed up on time and worked quickly and efficiently to remove and replace the old door and remove the aging storm door. The installation went smoothly and work was done extremely well. I am very pleased with the outcome and would highly recommend this company if you are in need of upgrades or replacement.

Illinois Energy Windows & Siding

Thank you for the fantastic review! We’re so glad to hear you had a great experience from choosing your new composite front door through the final installation. It’s wonderful to know our team helped you find the perfect style and color, that the process moved quickly, and that the installation was completed efficiently and with exceptional workmanship. We’re thrilled you’re pleased with the final result and truly appreciate your recommendation. Thank you for choosing us! Illinois Energy Management

Love my new door!

Karoline D.

I wasn't expecting replacing my front door to make such a difference on my house but it DOES. From the person who set the appointment, to Rachel walking me through the myriad options and recommending what would best meet my needs, to the install and follow up- it's been a stellar experience from start to finish. And it truly makes my home cooler against the southern afternoon sun- I can't wait to see how it helps this winter against the cold! Im so glad I decided to not wait. Thank you!

Illinois Energy Windows & Siding

Thank you so much for the wonderful review! We’re thrilled to hear that your new front door has made such a noticeable difference in both the look and comfort of your home. It’s great to know Rachel and the rest of our team provided a stellar experience from scheduling and product selection to installation and follow up. We’re excited for you to enjoy the added energy efficiency through every season. Thank you for trusting us with your home and for sharing your experience! Illinois Energy Management

Highly Recommended Company

Brandon B.

Getting work done to your home can be a very intimidating and stressful process. Of all the companies out there, which is the one that will do the best work, take the best care of you, offer the best product, and price themselves competitively with what they are offering you? When my path crossed the path of Illinois Energy Windows & Siding, I was immediately impressed. Tom was our sales rep and we felt immediately comfortable with him. He was patient, informative, and genuinely wanted us to make the best choice for us. After hearing about the quality of their product and how it differs from other companies we were immediately intrigued. After talking to Tom, we decided to go with Illinois Energy Windows & Siding for our upstairs windows. After a year of enjoying these beautiful windows on our second floor, we decided to get our downstairs windows and patio door done as well with Illinois Energy Windows & Siding. If their product wasn't as good as they sold it to be, if their service was subpar, if the communication process was inadequate, and if the pricing wasn't fair, there would be no way we would go back for more business. Thank you to Tom, Nate, Anthony, Dom, and the whole crew at Illinois Energy Windows & Siding for taking such great care of us and our house. We can't thank you enough!!!  Keep up the great work!!!

Illinois Energy Windows & Siding

Thank you so much for taking the time to share such a thoughtful and detailed review! We’re truly honored that you trusted us not once, but twice, with your home. It means so much to hear that Tom’s honest, informative, and no-pressure approach helped you feel confident in your decision, and that the quality of our products, fair pricing, communication, and service earned your trust for your second project as well. We’ll be sure to share your kind words with Tom, Nate, Anthony, Dom, and the rest of the team. The fact that you’ve recommended us to your friends and family is one of the highest compliments we could receive, and we sincerely appreciate your continued confidence in us. Thank you again for choosing us and allowing us to be part of improving your home! Illinois Energy Management

Highly Recommend!

Rita B.

This is our 3rd time using Illinois Energy. We love the company, products, and service. The most recent installation was done fast, professional, and went above and beyond our expectations. We know where we will go for our next needs.

Illinois Energy Windows & Siding

Thank you for your continued trust in us! We’re honored that you’ve chosen us for your home improvement projects three times. It’s wonderful to hear you continue to be happy with our products, service, and installation team, and that your most recent project exceeded your expectations. We truly appreciate your recommendation and look forward to helping with your next project whenever you're ready! Illinois Energy Management

Window Purchase and Installation

Brian K.

Very satisfied with the quality of the windows. The installers were very polite and professional. We had the second story windows installed recently, and the work performed was very efficient. We did the first story windows 4 years ago and we were very satisfied then.

Illinois Energy Windows & Siding

Thank you for your wonderful review and for choosing us again! We’re so glad to hear you’ve been pleased with the quality of your windows over the years and that your recent second-story window installation was completed efficiently by our polite and professional team. It means a lot to know you were just as satisfied this time as you were with your first-floor windows four years ago. We truly appreciate your continued trust and support! Illinois Energy Management

Excellent job, trustworthy company

Lori H.

We had our 30 year-old patio French doors replaced because they were rotted and damaged beyond repair. We interviewed five different companies… Illinois Energy was the fifth company we had out. I had driven past the Lisle showroom on Ogden Ave on my way home from work one day, and decided to pull in and have a look. I asked if they could have a sales rep come to the house and just give us a real straight talk, no BS presentation without any gimmick… Just give us the best and final price, show us your product, and leave out comparisons to other companies and any high-pressure tactics because after sitting through four presentations at 60 to 90 minutes each, we’d heard enough! I was told they would absolutely do that, and they were 100% true to their word! The salesman who came out was fantastic, and really knew his stuff. While they were not the absolute lowest price, the small amount of extra money we felt was well worth it for the quality of the product and the confidence in a company we finally felt like we could trust. It was approximately six or seven weeks for the custom door to be manufactured, and then the installation appointment was scheduled.The installer arrived right on time, and was very careful to tarp the space where he was working. They did a fantastic job, and when it was all done, there was no trace of any debris or dust or anything left behind. We are so glad we hired Illinois energy, and will definitely do business with them again!

Illinois Energy Windows & Siding

Thank you so much for this incredibly detailed and thoughtful review! We’re honored that after meeting with several companies, you chose us for your patio French door replacement. It means a lot to hear that our straightforward, no-pressure approach stood out and helped earn your trust. We’re thrilled that the quality of the product, the professionalism of our team, and the care taken during installation met your expectations. It’s especially rewarding to know the installer’s attention to detail, cleanliness, and dedication throughout a long and challenging installation made such a positive impression. We truly appreciate your recommendation and are grateful that you trusted us with your project. We look forward to installing your new storm door and providing the same level of service and craftsmanship. Thank you for choosing us! Illinois Energy Management

Backdoor Review

Brenden K.

I absolutely love my new backdoor you installed. Everyone who I ever met from this company either over the phone or in person has been a great experience. I highly recommend using this company for any of your window or door needs. Thank you for doing such a good job.

Illinois Energy Windows & Siding

Thank you for the wonderful review! We’re so happy to hear you had a great experience with your new back door and that everyone you worked with throughout the process was friendly, professional, and helpful. It’s great to know our team made the experience a pleasant one from the initial quote through the completed installation. We truly appreciate your recommendation and your trust in us for your home improvement project! Illinois Energy Management

Great service

Luis c.

The moment I called Illinois energy and windows they were very nice and profesional. They walked me through the steps of the process and helped with financing. The day of the install the crew was also very professional and clean, they tarped areas cleaned up afterwards. Overall experience was great!! Five star service 👍🏼

Illinois Energy Windows & Siding

Thank you for the fantastic review! We’re so glad to hear you had a great experience from your first call through the final installation. It’s wonderful to know our team was able to guide you through the process, assist with financing, and provide professional service every step of the way. We’re also happy to hear the installation crew took care to protect your home and clean up thoroughly afterward. We truly appreciate your kind words and your five-star recommendation! Illinois Energy Management

Great Job!

Paul M.

Fast and efficient crew! They were very respectable and cleaned up after themselves: Excellent Service

Illinois Energy Windows & Siding

Thank you for the great review! We’re glad to hear our crew provided fast and efficient service while being respectful of your home and leaving everything clean when the job was complete. We truly appreciate your kind words and are happy you had an excellent experience with us! 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