Jeb is a highly skilled construction worker and is a major character in Homescapes.
Austin first calls him in the Garden, thinking he is Stan. After Jeb confirms that he is Stan's son, he goes to help fix the orangery. Austin calls upon him for many more projects over the course of his renovation of his parents' estate.
According to William, Jeb looks very much like his father.
Jeb, like many other characters in the game, has some surprising talents aside from his mainstay, which is the construction jobs that are too advanced for Austin to handle. These include furniture design (Austin buys a couch and only later finds out that Jeb produced it), drum-playing, and juggling heavy objects.