Sliding Glass Door

"I was completely thrilled with the men who installed our new windows. I have extensive gardens, and they did everything they could to not smash a single plant. They even put up a scaffold to strattle the plants while putting in ground floor windows. This obviously made their job more difficult, but preserved my gardens. (And I didn’t even mention how nervous I was about them destroying my plants.) The windows look great and move smoothly."

"Love this companies professionalism along with their great customer service. Had 15 windows in total installed a few years apart along with double entry doors. They all look awesome from the inside and out. I would definitely recommend and use them again if the need arises."

"We could not be happier with both the quality of the windows and the professionalism of all the teams we dealt with. Highly recommend!"

"Quick and easy. 3 windows replaced in about 2:30 hours"

"We used Illinois Energy for all our windows and siding on two previous occasions. As this was the third time we used them, we obviously think very highly of their work. This time, we used them for our front door and garage side door. Jerry was absolutely amazing and took the time and care to ensure everything was installed to our needs, and everything worked properly. He was kind and courteous throughout the whole process, and he was incredibly nice to our kids and dogs. Great experience — if there was anything else in our house that could still be replaced, we would certainly call Illinois Energy again."

"Absolutely the best out there! All areas, sales, installation, and warranty service is wonderful. I replaced several windows and a large sliding glass door. They provided a pet screen for the large door at no additional cost. I really appreciated that. After the recent storms we have had, the screw covers on the outer frame of the slider got damaged. Thery replaced them without any issues. This company excels in customer service and provide great products. We have referred them to a few neighbors who did use them for their projects due to the pricing and service they provided. Illinois Energy is one of the best out there!"

"Illinois Energy Windows have been really easy to work with. Starting with knowledgeable representatives to professional service and, of course, great product, the company has delivered on our expectations. It is nice to be part of this smaller yet closely knit business family."

"We are completely satisfied with our experience with Illinois Energy Windows & Siding, Inc. We had four new windows installed in our 33‑year‑old single‑family home, and the entire process was smooth and professional from start to finish. Sales representative Paul Girzynski thoroughly explained and demonstrated the benefits of the new windows, making everything easy to understand. He provided us with a very fair quote for the four windows, and we were comfortable moving forward right away. Shortly after, a window specialist from Illinois Energy Windows & Siding, Inc. came out to take precise measurements. Within what felt like about a month, our windows were ready for installation. A team of four installers completed the job in approximately four hours. They took the time to explain the features of our new windows, including the latch‑release system and the ability to clean the windows from inside the room—an amazing and very convenient feature. Best of all, we immediately noticed improved comfort in our home. Our rooms are warmer in the winter, cooler in the summer, and overall much more enjoyable. We are extremely happy with the quality of the windows, the workmanship, and the customer service, and we highly recommend Illinois Energy Windows & Siding, Inc."