Window Installation Projects
Emily M. Cedar Rapids Window Replacement Review
August 6, 2025
Mainstream replaced 7 failing windows and a sliding glass door in my 2005 house.
Diane A. Rock Island Window Replacement Service Review
July 15, 2025
We are very happy with the job of our new windows installation from start to finish.
Noah H. Moline Window & Gutter Installation Review
July 14, 2025
Needed new windows on my front porch and new gutters on the whole house.
Cynthia I. Peoria Window Contractor Review
July 11, 2025
Mainstream Home Improvement did an excellent job replacing and installing my new windows.
Mike G. Bettendorf Window Replacement Review
June 27, 2025
Mainstream has been excellent to work with; they installed new windows in my home.
John M. Davenport Window Contractor Review
June 20, 2025
Window came out of the track. Called Mainstream.
Linda W. Erie Window Replacement Review
June 18, 2025
I used Mainstream 20+ years ago for the 1st time for siding and windows and was thrilled with them!
Ty T. Knoxville Window Replacement Service Review
June 17, 2025
Where do I start? I give them 5 stars because I can’t give them 6.
Rick G. Rock Island Window Installation Review
May 25, 2025
Mainstream team did a great job on my replacement windows.
Trisha J. Davenport Window Replacement Review
May 21, 2025
The windows look amazing. They actually put in 15 new windows in one day.
Tammy S. Davenport Window Installation Review
May 14, 2025
They were very professional yet personal.
Heather B. Neponset Replacement Window Review
May 9, 2025
We absolutely love our new windows and hope to get more next year as we only replaced 10 this year.
