 From 1998 to 2005, he was a delegate of the Archdiocese of Florence for the apostolate of the laity and was an ecclesiastical assistant of the diocesan council for lay associations.He was a member of the college of consultors in Florence from 2002 to 2015 and was Episcopal Vicar for the clergy of Florence.On 1 October 2015, Pope Francis appointed Roncari the Bishop of Pitigliano-Sovana-Orbetello, succeeding Guglielmo Borghetti.