Fischetti was mainly active as a fresco painter for palaces and villas in and around the city, including the Royal Palace at Portici. He painted frescoes of the seasons, Summer and Winter, in the conversation rooms of the appartamento vecchio of the Royal Palace of Caserta.
The exact date of his death is not known, but his last dated work is from 1792.
Among his works are listed:
- Virgin, St Anne, with Saints Carlo and Geronimo in the Chapel of the Assumption in the church of Spirito Santo
- Three oil canvases in the Chapel of the Verdi in the church of Spirito Santo
- Virgin of the Rosary with Santa Rosa for the Chapel of the Prince della Roccella in the Church of San Domenico Maggiore
- Canvases in Santa Caterina da Siena, San Eligio, and Santa Maria in Portico
- Summer with Ceres and Proserpine, Winter with Boreas Abducting Orithyia and for the Queen's quarters, a Venus; all painted for the Palace of Caserta
- Ceilings for the Palazzo Francavilla (Palazzo Cellammare), painted alongside Pietro Bardellino and Giacinto Diano
- Dizionario Biografico degli Italiani - Volume 48 (1997), Francesca Bertozzi
- Istituto Matteucci biography of his son, the painter Odoardo Fischetti.
- Caserta, Benevento and Avellino, Italy: Frommer's ShortCuts, 2012
- Vicende della coltura nelle due Sicilie, by Pietro Napoli-Signorelli. Volume II, 2nd edition, Naples (1811); page 253-254.
- Biblioteca Centrale Regione Siciliana Archived 2016-03-04 at the Wayback Machine, page 300.