The façade, rebuilt in 1891 by the engineer from Caltanissetta, Pasquale Saetta, is developed over three levels, in an eclectic style, and strongly characterizes the building through its color and the material with which it is covered.
The entrance portal is flanked by paired columns, topped with a triangular pediment, which are repeated on the second level, framing a mullioned window that illuminates the nave, and on the third level, a niche containing the statue of Saint Sebastian.
A curved pediment completes the façade. All the sculptures on the front, placed in niches or on the cornices, are the work of Biangardi. The current bell tower, built on the remains of the 18th-century one, ends with a polygonal loggia.