Our goal at Mainstream Home Improvement is to remodel your home with high quality products that will last a lifetime.  Our professional installers and superior customer service sets Mainstream Home Improvement apart from its competition. Call us today for your windows, siding and roofing needs.  1-866-786-8500

Mainstream Home Improvement wins Score's Business of the Year award!

Quad City Home Show "Best Builder Booth" Winner.

Mainstream wins Better Buisness Bureau Integrity award.

Free Estimates

Mainstream Home Improvement provides free estimates for your home improvement projects. Give us a call today!
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Now Offering

Leaf Relief by Alcoa
Leaf Relief Gutter System

Referral Program

Earn points to win money. Points are earned in two ways. First, you earn points equal to the contract price of your project. The second way to earn points is to refer your friends, family, and co-workers.
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We Love Our Customers

We believe that once a homeowner signs a purchase agreement with our company, it is our responsibility to make sure they are comfortable with their decision. Each homeowner will be updated throughout the entire installation process.
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Customer Testimonials

"Mainstream did an excellent job! The crew was excellent! They cleaned up after themselves. They worked long hot hours! ...I recommend Mainstream without any hesitation."

"Mainstream Home Improvement did an excellent job, they did what they said they were going to do, and within the time frame."
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Free Estimates • References Available • Licensed • Bonded • Insured • Financing Available

Illinois Home Improvement Contractors Disclaimer: The replacement window, roofing contractor and vinyl siding installation information presented in this website is for informational purposes only. Please contact us to discuss your particular window, roofing or siding needs. We help customers with their home improvement needs in Illinois and Iowa including all of Rock Island County, Scott County, Rock Island, Moline, East Moline, Silvis, Milan, Davenport and Bettendorf.

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© 2008 Mainstream Home Improvement - Illinois & Iowa home improvement contractors specializing in window, siding and roofing installations. All rights reserved.