Cornerstone Building Brands Acquires MAC Metal Architectural

Cornerstone Building Brands Acquires Metal Sales Manufacturing Corporation

September 15, 2025

Manufacturing

Cornerstone Building Brands, a leading North American manufacturer of exterior building products, has acquired Metal Sales Manufacturing Corporation, a Sellersburg, Indiana–based manufacturer of metal building systems and components. The acquisition (Metal Sales: ~900 employees) expands Cornerstone's footprint to more than 100 plants and distribution locations and increases its participation in the high-growth residential metal building and components market.

Cornerstone Building Brands Acquires Union Corrugating Company

November 9, 2021

Building Products

Cornerstone Building Brands, the largest North American manufacturer of exterior building products, has entered into and completed the acquisition of Union Corrugating Company Holdings, Inc., a metal roofing and components manufacturer headquartered in Fayetteville, North Carolina. The deal—funded with cash on hand—adds UCC's ~700 employees and roughly $250 million in trailing twelve-month sales to Cornerstone and expands the company's offerings into the high-growth residential metal roofing market while delivering manufacturing scale benefits.

Cornerstone Building Brands Acquires Mueller Supply Company

July 16, 2024

Building Products

Cornerstone Building Brands has completed its acquisition of Mueller Supply Company, a Texas-based manufacturer of residential metal roofing, components and steel buildings. The deal expands Cornerstone’s metal building materials footprint and strengthens its presence in the high-growth residential metal roofing market across Texas and the Southwest.

MTL Holdings Acquires Citadel Architectural Products

September 19, 2022

Building Products

MTL Holdings has acquired Citadel Architectural Products, adding Citadel’s composite panels and tested wall systems to MTL’s portfolio of building-envelope brands. The deal brings Citadel’s Indiana-based, ISO 9001-certified manufacturing capability and independent rep network into MTL’s family alongside Metal‑Era and Hickman Edge Systems to expand product offerings and single-source envelope solutions.

Cornerstone Building Brands Acquires Harvey Building Products from Dunes Point Capital

March 20, 2024

Manufacturing

Cornerstone Building Brands has agreed to acquire Harvey Building Products, a Waltham, Massachusetts-based manufacturer of windows and doors, from Dunes Point Capital. The acquisition adds Harvey's Harvey, SoftLite and Thermo-Tech brands, roughly 1,200 employees and four manufacturing facilities across the Northeast and Midwest, increasing Cornerstone's exposure to the Repair & Remodel (R&R) end market and strengthening its distribution and dealer channels.

Clayton, Dubilier & Rice Acquires Cornerstone Building Brands

July 25, 2022

Building Products

Clayton, Dubilier & Rice (CD&R) has completed its acquisition of Cornerstone Building Brands, the largest manufacturer of exterior building products in North America, in an all-cash transaction with an enterprise value of approximately $5.8 billion including assumed debt. Cornerstone, headquartered in Cary, North Carolina and employing more than 20,000 people, will become a privately held company under CD&R to pursue operational improvements and accelerated growth.