Windows, Insulated Siding, Door Replacement and more for Downers Grove, IL.

Adding value to your home and neighborhood.

Windows, Insulated Siding, Door Replacement and more for Downers Grove, IL.

Adding value to your home and neighborhood.

FROM ELEGANCE TO ENERGY EFFICIENCY, WE
HAVE YOU COVERED EVERY STEP OF THE WAY

At Great American Exteriors our purpose is to enrich and enhance the lives of our customers, teammates and communities by adding value to Chicago Area homes and neighborhoods through quality exterior exterior remodeling with windows, insulated siding, doors and so much more!

GRAMEX’s experienced exterior designers can help you create your new exterior using custom climatized materials that will provide the highest return on investment and efficiency.

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INSULATED SIDING RepLACEMENT FOR Downers Grove, IL

For homeowners in Downers Grover, upgrading your home’s exterior with insulated siding from Great American Exteriors is a smart investment in both beauty and performance. We proudly install premium James Hardie fiber cement siding, one of the most trusted and durable siding materials available today. Designed to withstand the harsh weather conditions of the Chicago area, James Hardie siding offers exceptional durability, low maintenance, and a timeless look that dramatically enhances curb appeal while helping improve your home’s energy efficiency. If you’re ready to transform your home’s exterior with industry-leading materials and expert installation, contact Gramex today to schedule your free consultation and see why so many Downers Grove homeowners trust them for insulated siding solutions.

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TRUSTED GRAMEX BRANDS

Quality Engineered windows for Downers Grove, IL

Upgrade your Your Downers Grove home’s curb appeal and comfort with high-quality replacement windows from Great American Exteriors. Serving the Downers Grove community for years, we offer an extensive line of custom vinyl, wood, and fiberglass windows designed to withstand Illinois seasons. Experience a clearer view of the outside world without compromising on interior comfort or style.

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GREAT AMERICAN EXTERIORS SERVICES

WINDOWS

Upgrade your home with energy-efficient Havington replacement windows designed for beauty, comfort, and value.

INSULATED
SIDING

Discover insulated siding solutions that improve efficiency while giving your home a fresh new look.

DOORS

Enhance your home with stylish and secure entry and patio door systems.

PORTICOS

Add beauty and weather protection with a custom-designed portico.

PERGOLAS

Create the perfect outdoor retreat with a custom pergola built for relaxing and entertaining.

DECKS

Transform your backyard with a custom deck designed for comfort and lasting value.

CONCRETE

Upgrade your property with durable concrete patios, walkways, and driveways.

PAVERS

Add elegance and durability to your outdoor spaces with expert custom paver installations.

GUTTERS

Protect your home with high-quality gutter systems designed for lasting performance.

Decks installed by skilled craftsmen in Downers Grove

Great American Exteriors provides professional deck design and installation services in Downers Grove, helping homeowners create beautiful and functional outdoor living spaces. Whether you’re interested in a low-maintenance composite deck or the classic look of a traditional wood deck, our experienced team can design a custom solution that complements your home and lifestyle. Composite decking offers long-lasting durability, resistance to fading and staining, and minimal upkeep, while wood decking provides natural beauty and timeless appeal. Since 1987, homeowners in Downers Grove and throughout Chicagoland have trusted Great American Exteriors for quality craftsmanship, expert installation, and exceptional customer service. Contact us today for a free estimate and discover how a custom deck can enhance your home’s value, comfort, and curb appeal.

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Great American Exteriors Replacement Windows

WHAT YOUR NEIGHBORS ARE SAYING

    
 
 
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   Nikki Pals 
 28 August 2026
 
 
  The work done was outstanding.  The carpenter Tom was very detailed in the work he did and the deck and porch I know have are better than when the house was originally built. The only problem I had was communication with office people.
  
 
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   Gus Grubczak 
 24 August 2026
 
 
  Repaired damage from tree falling on house. Had a few hiccups along the way, but owner Sam was very responsive and took care of them as soon as I made him aware.
  
 
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   Lisa Dede 
 17 August 2026
 
 
  He did a wonderful job replacing our old sliding glass door and screen. He not only did it quickly but also left everything clean and tidied up after he finished. I have used Gramex for other jobs and they have always done excellent work.
  
 
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   Nancy A. Stan 
 13 August 2026
 
 
  Wonderful, painless projects. Very professional and knowledgeable people.  Great organization and people. Loved working with all of them.
  
 
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   Nancy Valentine 
 10 August 2026
 
 
  We’ve had aluminum railings and an overhang installed on our front porch. Great service all around! Thank you!
  
 
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   Emiliano Lopez 
 5 August 2026
 
 
  Great American Exteriors did an amazing job replacing the gutters on my property. The crew was professional, showed up on time, and completed the work efficiently. The new gutters look great, and the quality of the installation is excellent. They kept the work area clean and made the whole process easy from start to finish. I really appreciate their attention to detail and would definitely recommend Great American Exteriors to anyone looking for quality home exterior work.
  
 
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   Samir Patel 
 29 July 2026
 
 
  Great American Exterior did great work on my exterior window bay panel replacements. They were very detailed with their work and gave it a nice finishing. Good people overall from sales to office to crew that came to work on the project.
  
 
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   Terrence Kinn 
 28 July 2026
 
 
  Thank you, Great American Exteriors, for a wonderful home improvement project! We had 2 new skylights installed in our sunroom; 2 windows and a new bay window replaced on the back side of our home as well as a new railing installed on our front steps. The entire project was seamless from beginning to end- Gamex got back to me immediately upon my initial request for a quote and Justin Peacock was thorough in his initial visits and getting us a quote for our project(s). The work commenced about 7 weeks after receiving the estimate despite an initial estimate of 8-12 weeks. All the work was completed in just 2 days, and the upgrades to our home are absolutely wonderful! The workmanship is all top-notch and the men who did the work were all informative, friendly, and dedicated, hard-working guys! This was only phase 1 of our windows and doors replacement at our home- we will absolutely be using Great American Exteriors for our future projects!!!
  
 
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   Lou Ricciardi 
 2 July 2026
 
 
  On time and budget professionally executed and clean.
  
 
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   Paul Mancillas 
 1 July 2026
 
 
  I had Great American replace my siding 3 years ago & they did a fantastic job. The recent storms damaged a piece up near the peak of my roof. I calked them & a repair was made that afternoon & it looks perfect! Highly recommend them for any remodel you're doing!