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Window Installation Process

It’s the special touches that take your home from average to a standout with curb appeal. Beautiful bay windows … custom-designed casement windows in the style and color of your choice … a harmonious sliding patio door. Illinois Energy Windows & Siding, Inc. brings you the best materials and practiced specialists in window installation to revamp your home and exceed your expectations. After more than 20 years in the business, we’ve developed an installation process that is second to none.

Quality Materials, Expert Installers

Illinois Energy Windows & Siding, Inc. has served thousands of customers in the Chicagoland area over the past quarter-century. We use our own top-quality materials and installers to handle your new windows, ensuring a smoothly-run project from beginning to end. We provide customers with a true lifetime parts, labor, service and installation warranty that is the most comprehensive in the industry. Pay once and you’ll never pay again!

Our Window Installation Process

Measure Window

1. Measure Window

Remove Window

2. Remove Window

Remove Frame

3. Remove Frame

Install Window

4. Install Window

Screw Window

5. Screw Window

Caulk Interior

6. Caulk Interior

Apply Hilti Foam

7. Apply Hilti Foam

Prepare Capping

8. Prepare Capping

Cut Capping

9. Cut Capping

Check For Perfect Fit

10. Check For Perfect Fit

Attach Capping

11. Attach Capping

Finish Capping

12. Finish Capping

Clean Window

13. Clean Window

Caulk Exterior

14. Caulk Exterior

Finished Window

15. Finished Window

Get Your Free Quote Today

At Illinois Energy Windows & Siding we make sure your windows are installed by highly trained experts. We follow a thorough process for window installation to create the best experience possible! Simply fill out our online form or give us a call today to get started.

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What Our Customers Are Saying

Our reputation is built on more than just quality products. From spotless worksites to professional installation teams, our customers share their experiences of how we go above and beyond.

★★★★★

Illinois Energy employees got here right on time and finished the work without any problem. They did the work very efficiently and finished the work on time. They cleaned up the whole thing that we didn't have to do anything after they left. Very satisfied with their work and punctuality.

Jaya Kannankeril
★★★★★

Recently Illinois Energy Windows & Siding did a fabulous job installing a bow window, along with a few standard size windows in our home. The installation crew was quick and did a wonderful job cleaning up after themselves.

Michelle Kerfman
★★★★★

Just had our new windows installed and we're very happy with the quality. The installers were very respectful of our home and property and did a beautiful job with installation and clean up. I even noticed that I hear less noise from outside! Glad we got this upgrade to our home.

Christine Warner-Uginchus
★★★★★

We were so pleased with our experience with our windows and patio door installations. The two Illinois Energy installers arrived on time. They immediately laid tarps and put up plastic shields to contain the dust. They worked efficiently and cleaned up when they finished. We highly recommend them.

mailpost21
★★★★★

Several of our windows have been replaced with windows from Illinois Energy. Installation of the windows went smoothly, furniture was moved, and drop cloths protected our rugs. We were very satisfied with our choice of windows, and the excellent service we received from Illinois Energy.

Lydia Selbka
★★★★★

This review is another review for Illinois Energy Windows and Siding, Inc. I recently had them install a patio door. I was very pleased with the products and excellent customer service. They responded quickly to any questions/concerns I had during the process. Just as before, the installation went smoothly, and the installers arrived on time, explained everything to me and cleaned up thoroughly. I plan to use them again in the future to replace additional windows. I also like the lifetime warranty they offer with their products and service.

Charmaine Allen
★★★★★

They recently replaced 2 half moon windows in my townhome. I had many plants in the front yard near the windows which they were very careful not to destroy. They worked carefully and quickly. I had minimal cleanup when they left. I did not even have to repaint the interior of my house and nothing was damaged as a result of their work. I have used this company before and will use them again.