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We're locally based yet nationally recognized for outstanding products, trained experts, and true lifetime warranties.
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Windows- Buy 1 get 1 50% off

*Offer expires 5-31-22. Restrictions Apply. Minimum purchase amount $5,000. Not valid with any other offers, previous purchases, or previous price freeze programs. Window savings based upon purchase of single window at normal lit price. Promotions valid during initial estimate process. Illinois Energy has one of the longest warranties in the industry. However, that does not mean there are not some limitations. Please ask to see applicable product warranty certificates for any specific limitations. This advertisement will not serve as our warranty. Financing is subject to credit approval and completion of finance documents. Interest free options would have financing interest accruing during promotional periods. Interest is waived if paid off in full during the promotional period. Illinois Energy Windows & Siding Inc. is neither a broker nor a lender. Financing is provided by third party lenders. Terms and conditions arranged are directly between the customer and such lender.

Siding- 25% off

*Offer expires 5-31-22. Restrictions Apply. Minimum purchase amount $5,000. Not valid with any other offers, previous purchases, or previous price freeze programs. Siding Savings based upon purchase of siding or doors at normal list price. Promotions valid during initial estimate process. Illinois Energy has one of the longest warranties in the industry. However, that does not mean there are not some limitations. Please ask to see applicable product warranty certificates for any specific limitations. This advertisement will not serve as our warranty. Financing is subject to credit approval and completion of finance documents. Interest free options would have financing interest accruing during promotional periods. Interest is waived if paid off in full during the promotional period. Illinois Energy Windows & Siding Inc. is neither a broker nor a lender. Financing is provided by third party lenders. Terms and conditions arranged are directly between the customer and such lender.

Doors & Patio Doors- 25% off

*Offer expires 5-31-22. Restrictions Apply. Minimum purchase amount $5,000. Not valid with any other offers, previous purchases, or previous price freeze programs. Door Savings based upon purchase of siding or doors at normal list price. Promotions valid during initial estimate process. Illinois Energy has one of the longest warranties in the industry. However, that does not mean there are not some limitations. Please ask to see applicable product warranty certificates for any specific limitations. This advertisement will not serve as our warranty. Financing is subject to credit approval and completion of finance documents. Interest free options would have financing interest accruing during promotional periods. Interest is waived if paid off in full during the promotional period. Illinois Energy Windows & Siding Inc. is neither a broker nor a lender. Financing is provided by third party lenders. Terms and conditions arranged are directly between the customer and such lender.

Chicagoland Replacement Windows & Siding

At Illinois Energy Windows & Siding, our purpose is to enhance and enrich your life through world-class remodeling services. As an A+ rated, BBB-accredited local business, we want to earn your total satisfaction for life—and we offer true lifetime warranties to do it!

With 20 years of remodeling experience throughout Chicagoland, we’re committed to 100% customer satisfaction with every job. You can trust us for beautiful, low-maintenance, and energy-saving improvements of any kind: replacement windows, siding, gutters, exterior doors, and so much more.

Our Services

Exterior Remodeling for a More Beautiful, Energy-Efficient Home

We may be a local Chicagoland business, but we’re nationally recognized for best-in-class home remodeling.

Replacement Windows

Replacement Windows

With SmartGlass365, our windows aren’t just earth-friendly; they could also save you hundreds of dollars on heating and cooling every single year! Multiply that by the life of your home, and you’ll see why our windows are the smart choice.

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Exterior Doors

Exterior Doors

Our artisanal CastleView doors can transform any front door into an entry that’s fit for royalty! These exterior doors are beautiful, durable, and secure to keep your family safe and boost your home’s curb appeal.

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Siding

Siding

Our customized siding will make your home exterior magazine-worthy! You’ll enjoy better insulation, reduced noise pollution, and proper weather protection. Many local homeowners see an instant property value boost, too.

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About us

A Rich Legacy of Home Remodeling

Since 2002, Illinois Energy Windows & Siding has been Chicagoland’s top provider of home remodeling products and services. Our hallmark is quality, and our promise is perfection! We settle for nothing less than 100% satisfaction, and it shows in our many accolades and accreditations. We are:

  • One of Northern Illinois’s Largest Remodeling Companies
  • Highly Rated by Previous Customers Across Chicagoland
  • A+ Rated and BBB Accredited
  • A BBB “Complaint-Free Award” Winner
  • A “Best of HomeAdvisor” Award Winner 2020

Put your replacement windows, doors, siding, or gutters in our expert hands. You won’t regret it!

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Enriching Your Life with World-Class Remodeling—For a Lifetime!

Company History

We’ve served Chicagoland since 2002 and have a glowing record of successful remodeling work.

Customer Commitment

We accept nothing less than 100% satisfaction, no matter how big or small the job.

Finest Materials

With a commitment to quality above all, we’ve sourced the best products from the best brands!

Lifetime Warranties

We’re highly regarded for our no-nonsense, true lifetime guarantee on parts and labor.

Testimonials

From “Best of HomeAdvisor” 2020 to countless positive reviews, we’re known as the best!

"We replaced all of our upstairs windows with Illinois Energy. The windows look fresh and the installation process was easy. They look great and are much better than our name brand Pella windows that we previously had. We appreciated the great customer service and follow up. We are planning to replace the rest of the windows in our house in the future with Illinois Energy Windows. We highly recommend these windows to other home owners. Our sales rep Jason was courteous and professional through the whole process."

Gloria & Justin ~ Bartlett IL

Service Areas

Serving the SubUrban Chicagoland Area Since 2002

  • Addison
  • Arlington Heights
  • Aurora
  • Bartlett
  • Bolingbrook
  • Buffalo Grove
  • Carol Stream
  • Crystal Lake
  • Des Plaines
  • Downers Grove
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