Cornerstone Building Brands Expands VA Manufacturing
Originally Published by: HBS Dealer — December 9, 2025
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North Carolina-based Cornerstone Building Brands has agreed to invest $4.9 million to upgrade its Ply Gem facility in Rocky Mount, Va.

The agreement was hailed by Governor Glen Youngkin, who shared in a press release, "This $4.9 million investment and the creation of 50 new jobs will further strengthen the region’s manufacturing sector and ensure that even more high-quality products are proudly made in Virginia. We are excited to support Cornerstone Building Brands’ continued growth and look forward to the new opportunities this expansion will bring to Franklin County.”
“Cornerstone Building Brands is proud to continue advancing American manufacturing by expanding our operations in Rocky Mount where we have a terrific team,” said Cornerstone Building Brands Chief Executive Officer Gunner Smith. “This investment increases our capacity and strengthens our ability to meet future demand for our Ply Gem windows and doors while creating new career opportunities for skilled manufacturing workers in Franklin County. We appreciate the continued partnership of the Commonwealth of Virginia and local leaders as we build on our legacy of delivering high-quality products that best serve our customers and communities.”
Cornerstone Building Brands was formed in 2018 through the merger of NCI Building Systems and Ply Gem Building Products. Today, Cornerstone Building Brands serves both new construction and repair & remodel markets with vinyl windows and doors, vinyl siding, stone veneer, metal roofing, metal wall systems and metal accessories. In addition to Ply Gem, the company’s brand portfolio includes Simonton Windows & Doors, Mastic by Ply Gem and Mueller.