Andras opened with an 11-4, 11-5, 11-6 win over Marcelo Aguirre, and Finn Luu came from a game down to beat Kirill Gerassimenko 3-1 for a 2-0 lead.
Irvin Bertrand kept Werder in the match by beating Ivan Ban 11-9, 11-2, 11-4, but Andras sealed the win by beating Gerassimenko 11-5, 11-9, 6-11, 11-4.
It is a third league win of the season for Bad Homburg, who now have three wins and three defeats. Werder had hoped to stay in the top four, which qualifies for the play-off finals.
