Window Installation Testimonials

Mainstream replaced 7 failing windows and a sliding glass door in my 2005 house.
Emily M.

Spencer and Mainstream do really good work!
Jamie C.

Very pleased with my new windows!
Vicki P.

We are very happy with the job of our new windows installation from start to finish.
Diane A.

Needed new windows on my front porch and new gutters on the whole house.
Noah H.

Mainstream Home Improvement did an excellent job replacing and installing my new windows.
Cynthia I.

Excellent service from bid to installation.
Barbara A.

Mainstream has been excellent to work with; they installed new windows in my home.
Mike G.

We are very happy with our new windows!
Sue G.

Window came out of the track. Called Mainstream.
John M.

I used Mainstream 20+ years ago for the 1st time for siding and windows and was thrilled with them!
Linda W.

Where do I start? I give them 5 stars because I can’t give them 6.
Ty T.

Where do I start? I give them 5 stars...
Ty T.

Great customer service...
Mike J.

Mainstream team did a great job on my replacement windows.
Rick G.

The windows look amazing.
Trisha J.

The windows look amazing. They actually put in 15 new windows in one day.
Trisha J.

Workmanship of the crew was great...
Bill J.

They were very professional yet personal.
Tammy S.

We absolutely love our new windows and hope to get more next year as we only replaced 10 this year.
Heather B.