Successor of a chapel mentioned in 1145 and dedicated to Saint Gertrude, the church was rebuilt in 1602 thanks to the sale of common property. The church was modernized in the 18th century, the choir and the northern part were restored in 1913 by the architect E. Burguet. In 1803 it became a parish church and was given the name Saint-Roch. Set within a walled cemetery where a series of ancient crosses frame the entrance, the shrine is made of sandstone rubble with limestone. A western tower, which used to be an extension, is preceded by three naves of three bays each, ending in a slender Gothic choir. The massive tower and slender Gothic choir probably date from the 15th century. The interior of the church consists of a set of woodwork, from 1736 to 1740, made by Noël Henrard, including the main and side altar, the communion rails, the pulpit, the confessionals, the choir paneling, the rood loft, the choir stalls, the benches and the niche for the statue of Saint Gertrude. There is also an 18th century baptismal font made of Limburg marble, a Gothic theotheque with a pedestal with the coat of arms of Burgundy from the 15th century, the statue of Saint Gertrude of Nivelles from the 18th century being invoked against rodents, and numerous funerary crosses from the end of the 15th century.
Not far from the church is the old parsonage, now part of Bilstain school, and a well restored in 1792.