Cornerstone Building Brands Reviews 2026

Cornerstone Building Brands is the largest manufacturer of outside building products and services in the United States (MITER Brands is a distant second.) CBB began all the back in 1984 and today the company is headquartered in Cary, North Carolina. The company employs some 20,000 individuals and operates nearly 100 manufacturing plants. This is a large operation. Scroll down to read our Cornerstone Building Brands reviews.

My Take On This Company: Definitely a force to be reckoned with. I will certainly be tracking the company going forward to see who they acquire next and what steps they take.
(Always Get 3 to 4 Local Price Quotes - And My Personal Advice)

Overall Rating: Cornerstone Building Brands gets a 4.0 out of 5 stars based on 2 consumer reviews below.

CBB Window Cost: $/$$/$$$
(1/2/3 out of 5)
(Amongst All Vinyl Windows)

Cornerstone Building Brands (Overview)

Cornerstone Building Brands owns quite a number of window and door brands. Some of the larger brand names include Simonton Windows, Ply Gem, Silverline, American Craftsman, Great Lakes, North Star, Atrium Windows, Cascade, and Prime Window Systems.

Have a Cornerstone Building Brands question or quote that you need help with - Dane - Site Editor

Dane - Site Editor - Page Last Updated: October 24, 2025

Cornerstone Building Brands is one of the largest owners of replacement window companies in the world. They are a juggernaut to be sure.