In a May 18 letter to employees, De Zen said the fenestration acquisition will create a highly competitive global company for years to come.
Vision Extrusions manufactures PVC and fiberglass columns, vinyl fences, PVC and aluminum railing, patio doors, steel doors, basement windows and custom profiles.
"Together we will protect and build our customer relationships by consistently delivering the outstanding service and quality products expected from us," De Zen said.
With estimated annual profile sales of $185 million and overall corporate sales of $450 million, Vision Extrusions holds the No. 27 spot among North American pipe, profile and tubing extruders, according to Plastics News' latest ranking.
Energi ranks 38th with estimated profile sales of $115 million from five manufacturing plants, according to the rankings.
De Zen has past ties to Royal Building Products. In 1970, he founded Royal Plastics Group, which went public through an initial public offering in 1994, although De Zen held nearly all of the company's voting shares.
The company, then known as Royal Group Technologies Ltd., won the 1999 Plastics News Processor of the Year award.
But after a period of slumping financial results and government investigations, De Zen was ousted in 2004 and the company was sold in 2006 to Georgia Gulf Corp. for about $1.6 billion.
Georgia Gulf became Axiall Corp. in 2013. In 2016, Atlanta-based Axiall sold the PVC window and door profiles operations to OpenGate Capital.
Now De Zen controls Vision Group of Cos., which, in addition to the extrusion business, also offers industrial and commercial land development and construction and property management. It reaches into the transportation and hospitality industries.
De Zen said the integration of Energi and Vision will maximize manufacturing, purchasing and human resources when it is completed in the coming months.
"This acquisition will be a positive venture for our employees as well as our customers and suppliers," the CEO concluded in his letter.
However, in a FAQ section that follows De Zen's comments, employees learn some positions will be eliminated: "We expect that many of our employees will benefit from the available increased opportunities as part of a larger company. Of course, as in any transaction of this type, there will be some overlap in corporate and geographic functions, and as such the elimination of certain jobs. We expect clarity on job status questions within the next 90 days."