Jeffrey joined the family business, carpet and rug manufacturer Aladdin Mills, in 1976, after graduating from the
University of Denver. Lorberbaum held a number of leadership positions, eventually serving as vice president of operations from 1986 to 1994. In 1994, Aladdin merged with
Mohawk Industries, which had gone public in 1992, creating one of the largest flooring manufacturers in the United States – and his father became Mohawk's largest shareholder. Jeffrey and Alan Lorberbaum then joined Mohawk's board of directors. In 2002, Lorberbaum orchestrated the $1.8 billion (~$ in ) purchase of Dal-Tile of Dallas making Mohawk the world's largest tile-maker. In 2005, Mohawk purchased Unilin, a Belgium-based maker of laminate flooring and MDF board (a composite used in do-it-yourself furniture) for $2.6 billion (~$ in ). In 2023, Lorberbaum's total compensation from Mohawk was $4.4 million, or 103 times the median employee pay at Mohawk for that year. ==Personal life==