 In 1990, Andrus became the chaplain at Episcopal High School in Alexandria, Virginia, until 1997 when he became rector of Emmanuel Church in Middleburg, Virginia.He remained there until his consecration as bishop suffragan for the Episcopal Diocese of Alabama on February 7, 2002.Andrus was installed in 2006 as Episcopal Bishop of California, where he oversees a diocese of approximately 24,000 communicants in Alameda, Contra Costa, Marin, San Francisco, and San Mateo Counties, and the cities of Los Altos and part of Palo Alto.