 Restoration work on all five churches began from 1979 to 1985, initially focusing on the integrity of the structures and the facades.From 1991 to 1997, restoration of the towns around the missions, including work on monuments, plazas, fountains, building facades, paving streets with stone and more were undertaken.From the late 1990s to the early 2000s, restoration of interiors were done, including to altars, choir areas, organs and paintings.