Superior Products. Reasonable Prices. 1554 52nd Ave, Moline, IL 61265 (309) 762-6244 Energy Star Rated Learn more. TruDefinition Shingles See color options. Visit Our Blog Click here. Home Windows Doors Roofing Siding Gutter Covers About Us Contact Us Elite Craftsmanship Every Detail Of Every Installation Is Done To The Highest Standard. Contractor Standards Guide Learn what to ask before hiring a home improvement contractor. Real Customer Testimonials Real names and numbers. Right here. Right now. Frequently Asked Questions You have questions... We've got answers. Free Estimate Choose Your Service View Our Awards Learn about awards we have won. Financing Click Here For Our Financing Options. Absolutely, 100 Percent, Without Question, The Best Home Improvement Company In The Quad City Area Don'T Hire Any Contractor Until You'Ve Educated Yourself... Most Companies Cut Corners On Installation So You Think You'Re Getting A Good Deal. Mainstream Customers Expect A Higher Standard You can buy windows, siding, or get your roof replaced by lots of home improvement contractors in the quad cities... but if you give us a chance to earn your business, you'll see why we've been the undisputed leader for years. In a way, we have an old-school approach. We won't skimp out on the essentials just to save time or to turn a profit. We have no tolerance for inferior workmanship that waste your time and money. Our Pledge No sales pressure. No long, drawn-out sales presentations. No pricing games. No phony markups. Warranties that mean something. Menu Home Windows Doors Roofing Siding Gutter Covers Financing About Us Site Map Follow Us Contact Us (309) 762-6244 Send Us An E-Mail Mainstream Home Improvement 1554 52nd Ave Moline, IL 61265 © 2021 Mainstream Home Improvement. Developed and Designed by Monopolize Your Marketplace. Privacy Policy | Terms of Service