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5.0
270 reviews

Replacement Windows

Tiffany M.

I was pleased with the job done for my playroom and mudroom windows. The job was clean, timely and efficient(less than 1/2 a day). My blue outside windows add a pop of color to my exterior.

Illinois Energy Windows & Siding

Thank you for your positive feedback! We're happy to hear that your window replacement was completed efficiently and that our team maintained a clean work environment. Illinois Energy Management

Dining and bedroom windows

Roman B.

I have ordered multiple windows several different times. Each time I have been very open with them from start to finish. Communication is great, customer service is very good, and the finished product is as good as anyone. You get what you pay for, so this is not the cheapest route, but so far, it's been money well spent for us. Definitely happy to do business with them and would recommend giving them a look on your home project.

Illinois Energy Windows & Siding

Thank you so much for your thoughtful review! We're thrilled to hear that you've had a positive experience with us on multiple occasions. It's great to know that our communication and customer service met your expectations and that you're satisfied with the quality of our windows. We appreciate your understanding that quality comes at a price, and we're glad to be a part of your home projects. Thank you for recommending us, and we look forward to working with you again in the future! Illinois Energy Management

Illinois Energy

Linda L.

This is the second time I've used Illinois Energy to replace windows. I am very happy with their services. The construction workers are incredibly efficient and explain everything that they are doing. The finished product looks fantastic. I would highly recommend this company for any work you may need.

Illinois Energy Windows & Siding

Thank you so much for your wonderful review! We're thrilled to hear that you're happy with both the efficiency of our team and the final result of your window replacement. It’s great to know that our installers took the time to explain everything and that you’re pleased with the outcome. Your recommendation means a lot to us. Thank you for your business and support! Illinois Energy Management

Replace doors and windows

Joel Y.

Very professional. Thorough and good follow through.

Illinois Energy Windows & Siding

Thank you for your review, we're happy everything went well for you! Illinois Energy Management

Windows and More

Jason D.

Illinois Energy (IE) has worked on pretty much our entire house and we have loved partnering with them. We have had all our windows, front door, back sliding door, egress windows, and soffit/fascia updated over 4 or 5 projects. The sales rep, Paul, was always very respectful and honest. He never pushed any projects we weren't interested in and was incredibly knowledgeable about all the products IE offered. While it may be unusual, I looked forward to doing projects with IE partially because I so enjoyed getting to know Paul and building a friendship that went beyond home improvement projects. We also looked forward to working with IE because of how efficiently they worked when at our house and the quality of the installation of the products. My father-in-law was a career builder/carpenter and he was always impressed with the trim and molding work IE did on the windows and doors. While IE will not be the cheapest option you can find on the market, I don't believe you will find better value for your money. The products and the work installing them were very high quality and there is no way to beat their lifetime of the house warranty. I don't have the room to say everything I want but I'll end with this; with IE you get far more than you pay for in the quality of the products, the quality of the installation, and (most importantly) the quality of people you will work with. I recommend Illinois Energy for your home improvement jobs with the highest esteem!

Illinois Energy Windows & Siding

Thank you so much for the awesome review! We’re really happy to hear that you’ve enjoyed working with us on all your projects, we enjoyed working with you as well! It’s great to know that Paul made such a positive impact and that you’ve been impressed with our work and efficiency. We’re especially glad to hear that your father-in-law was impressed with the trim and molding, it means a lot coming from someone with his experience. Thank you for business and continued support. Illinois Energy Management

So happy with the new windows!

Ruby H.

The process went very smoothly, everyone was super nice, and installation only took a day. They look great and came with an amazing warranty.

Illinois Energy Windows & Siding

Thank you for the positive review! We’re so glad to hear that everything went smoothly and that you’re pleased with the results and our warranty. It’s great to know that our team’s effort and efficiency stood out to you. Illinois Energy Management

13 years! Product still under warranty!

Maureen N.

I highly recommend Illinois Energy, Windows and Siding if you need to replace windows, doors, gutters or siding for your home. We had new gutters replaced on our house in September, 2011. I am writing today, because we recently needed to extend a gutter on the second story of our home, and not only did Illinois Energy come out to do an excellent job, but IT WAS STILL COVERED UNDER WARRANTY! AFTER 13 YEARS! :) Illinois Energy is customer focused with outstanding customer service, quality materials, and a warranty which covers both parts and labor. I am so grateful that they installed my gutters (and keep them in working order!), and they are first on my list for any other external repairs we need for our home. I am completely impressed with their professionalism, and highly recommend Illinois Energy!

Illinois Energy Windows & Siding

Wow, thank you so much for this fantastic review! We’re thrilled to hear that you had such a positive experience with our team and that our warranty coverage exceeded your expectations. It’s wonderful to know that our commitment to quality and customer service has made a lasting impact. We truly appreciate your continued trust and support, and we look forward to assisting you with any future home improvements. Thanks again for recommending us so highly! Illinois Energy Management

Upgrade

James P.

Smooth install looks fantastic

Illinois Energy Windows & Siding

Thank you for your review, business, and support! Illinois Energy Management

Windows and patio door Purchase and install instal

Karen L.

From my initial contact with my salesman, to the customer service reps to the installation crew. I am very happy with my windows and patio doors that were installed, my windows came in sooner than expected, and the installation crew was very prompt, they were very meticulous with the installation and cleanup. I am very happy with my overall products and would definitely recommend this company to anyone.

Illinois Energy Windows & Siding

Thank you so much for your wonderful review! We're thrilled to hear that you had such a positive experience from start to finish. It’s great to know that everything—from the initial contact to the installation—met your expectations and that you’re pleased with the windows and patio doors. We really appreciate your recommendation and are grateful for your support. Illinois Energy Management

Tims windows

Tim L.

windows are great! much better view than old ones. Installers completed on time and cleaned up and showed me how to work the windows. definitely would recommend them

Illinois Energy Windows & Siding

Thank you so much for your kind words! We're thrilled to hear you're enjoying the improved view and that our team made the installation process smooth and easy for you. Thank you for your business and support! 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