More than 60 students and young professionals saw in Yom Kippur with a meal at Chabad house in South Kensington.
Services were held throughout Yom Kippur and most people stayed to break the fast with Rabbi Mendy and Sara Loewenthal.
Chabad opened in the area two years ago to provide for students at Imperial University.
One of those who attended services told Rabbi Mendy: “You have allowed people to do a Yom Kippur as it should be done.”