Until the mid 15th century, the parish was under the provostship of Saint-Gilles-de-Verrès in the Aosta Valley. The naves of this hall church comprise three bays with groin vaulting: in 1859, the Artari brothers, painters from the Aosta Valley, enhanced the central nave with decoration depicting the four evangelists surrounded by four prophets. Jacques Clérant and Claude Marin crafted the main altarpiece in 1698, in the centre of which is a painting by Gnifeta (1859) showing the suffering of St Andrew: around him are wreathed columns with vine branches and angel caryatids. These are supporting an entablature topped with a Christ on the cross, flanked by Mary and St John. Cherubs are showing the instruments of the Passion or gathering the blood in chalices. In 1708, Jacques Clérant and an unknown author sculpted the rosary altarpiece in Naïve style. Two wreathed columns with a climbing rose frame the sculpted panel of a Virgin with Child, accompanied by St Dominic and St Catherine of Siena. An array of paintings grace the side aisles.Closed to the public.