 He reused Dirk Crabeth's designs in Gouda for his restoration of the windows numbered 10 and 22 in the Janskerk after these windows were badly damaged after a heavy storm in 1654.Tomberg was appointed curator in the same year and repaired the window, including a set of heraldic shields at the bottom of the glass indicating the mayors of Gouda in 1655.After his death, his cartoon of Glass 10 was traded for a grave in the church, and he was succeeded as curator of the windows by his son Willem.