Daily Mass is celebrated in the College chapel for everyone. The liturgy celebrated is most often the modern Roman rite ('ordinary form') in Latin. Readings are in English as well as hymns. The Kyrie, Sanctus and Agnus Dei are sung in Gregorian chant.

Every Monday and Tuesday we have Mass in either English or French, and we have Mass in the extrordinary form ('the Tridentine Mass') on Fridays (Low Mass) and Saturdays (Sung Mass).

Boys at Chavagnes learn how to serve Mass in both the ordinary and extraordinary forms and also have the opportunity to sing in the choir.

We also celebrate Benediction on Sunday evenings. Vespers is chanted occasionally on Sunday before Benediction.