Mainstream Home Improvement

Mainstream Home Improvement is a window installer in East Moline, Illinois. Serving the Quad Cities area, including Davenport, Bettendorf, Moline, and Rock Island, this company provides a variety of exterior services such as replacement windows, doors, siding installation, gutters, and roofing. They are a highly rated professional with a 4.90 rating.

Established in 2001, the company has over 20 years of industry experience. They are the only authorized Infinity by Marvin dealer in the Quad Cities, offering premium Ultrex fiberglass windows designed for durability and energy efficiency. Under the guidance of owner Spencer Sierra, the team provides transparent, no-surprises estimates and manages projects from start to finish. As licensed and insured contractors, they focus on delivering high-quality workmanship and professional installation for complete home exterior upgrades.

The business is located on 52nd Ave, situated near Commonwealth College and a short drive from John Deere Road.

Mainstream Home Improvement is recognized as a top-rated window contractor in the region, having been voted the number one window installation contractor in the Quad Cities. Their reputation for excellence and commitment to exceptional customer service makes them a trusted choice for homeowners seeking reliable exterior renovations.

With decades of expertise, Mainstream Home Improvement remains a premier choice for professional window and home exterior services in East Moline.