Mainstream Home Improvement

About Us

Our Bettendorf showroom was created to give homeowners a better way to shop for replacement windows. Instead of looking through brochures or trying to picture what a window will look like in your home, you can see, touch, and operate full-size displays while exploring the different styles, colors, hardware, grid patterns, and glass options available.

As the area's exclusive Infinity by Marvin showroom, we're proud to offer one of the finest fiberglass replacement windows on the market. Whether you're replacing a few windows or planning a whole-home project, our team is here to answer questions, explain your options, and help you find the right fit for your home and your goals.

Everything we do is guided by our Beyond 5-Star mindset. We believe choosing replacement windows should be an enjoyable experience, with honest advice, clear communication, and a team that's committed to doing things the right way from start to finish.

For 25 years, Mainstream Home Improvement has been helping homeowners invest in their homes with confidence. We invite you to stop by our Bettendorf showroom, explore Infinity by Marvin for yourself, and experience the difference that comes from working with a team that truly cares.

Showroom Focus: Infinity by Marvin Fiberglass Replacement Windows, Full-Size Window Displays, Window Design Consultations, Glass & Grid Options, Interior & Exterior Color Selections, and Patio Doors.