These ladies play are important part in any of the celebrations, their main duty is to prepare the Altar for Holy Mass, this entails preparing the ciboria, and chalices, filling the cruets with water and wine, placing candles on the altar and changing the Altar cloth according to the different Sundays and Feast days in the year.

Other duties include filling the holy water fonts, making sure that the altar servers are dressed in their tunics, and Ministers of Holy Communion, Proclaimer of the Word and Commentator are all ready and waiting to serve.

After Mass the Sacristan clears the altar, rinses the sacred vessels and locks them away in the safe, covers the Altar with a dust cloth this helps to ensure that the Altar is always dust free.