St. Vincent Ferrer is the patron saint of builders because of his fame for "building up" and strengthening the Church: through his preaching, missionary work, in his teachings, as  confessor and adviser. 

At  Valencia in Spain, this illustrious son of  St. Dominic came into the world on January 23, 1357. In the year 1374, he entered the Order of  St. Dominic in a monastery near his native city. Soon after his profession he was commissioned to deliver lectures on philosophy and devoted himself to preaching.

He evangelized nearly every province of Spain, and preached in France, Italy, Germany, Flanders, England, Scotland, and Ireland. 

Feast Day: April 5th

Watch a video about the life of Saint Vincent Ferrer by clicking the link below.
https://youtu.be/XFkTGMr2ad8?list=PL58g24NgWPIzvBk2IQVES_xC4WTm6-CDI