The 24-year-old led after the ski jump and with just two bronze medals to their names up until this point, through Bjorn Kircheisen in the nordic combined normal hill event and mixed ski-jumping event, all eyes were on him to finish the job.
And Frenzel did exactly that as he came home in 27:22.8 minutes for Germany's first title of this year's World Championships, making it two for the man in question during his career having won the large hill event in Oslo two years ago.
Austrian Bernhard Gruber crossed in 27:59.5 minutes to take silver, while Jason Lamy-Chappuis of France won bronze to keep his World Championship run going, winning a medal in four of the last five global gatherings dating back to 2009.
Frenzel's victory means Germany have jumped up to sixth in the overall medal table, with Austria down in ninth and still waiting for their first gold.
But Lamy-Chappuis' bronze means France are now third overall, one medal behind Russia in second while Norway still lead with 15.