Chapel services are intended to provide students with the basic building blocks of faith traditions and to support the religious education they may receive at home. Chapel services include hymn singing formal and informal prayers, scriptures and lessons. Students and school personnel are required to attend chapel, and families and friends are encouraged to attend these services with their children. Students involved in youth programs, such as Brownies, Cub Scouts, Boy Scouts and Girl Scouts, may wear that uniform on Chapel days.

The chapel is a sacred place of worship and is used by members of the Sierra Madre community. Therefore, it is important that students observe appropriate chapel etiquette during chapel services on Monday and Thursday. During the year, children are recognized with the Birthday Prayer and Song in the chapel service closest to their birthday. Parents are encouraged to attend this special chapel services. Students in grades 6-8 attend a Faith & Ethics class at least twice a month, led by the School Chaplain. This is not a doctrinal course, but a forum for discussion and learning about various religious traditions and the interaction of faith and ethics in the global community.