Graham Partners, a privately held investment firm, has acquired Chelsea Building Products Inc. in Oakmont, Pa., from the Tessenderlo Group.

Graham Partners manages approximately $1.5 billion in internal and third-party investment capital. The company specializes in buyouts of middle market manufacturing companies.

“The building products industry represents an important sector for Graham Partners,” says Rob Newbold, managing principal at Graham Partners. “Chelsea Building Products Inc. is well-positioned to take advantage of future growth by providing quality products and a well-known brand. They have an experienced management team, a committed and talented employee base and long-term successful partnerships with their customers. Chelsea Building Products is a dynamic company with demonstrated innovation within the building products industry and we are delighted at the opportunity this acquisition represents.”

“We are pleased to announce that we found the perfect partner for Chelsea Building Products,” says Peter Dewil, president of Chelsea Building Products. “Together with their financial expertise, Graham’s extensive operating resources and industry network will help Chelsea implement its strategy.”

A statement issued by Chelsea Building Products notes that the company is committed to making the transition as seamless as possible for employees, customers and suppliers.