The church in Janów is a building dating from the years 1921-1923. This is the third, successive church standing on the same site. It was erected in the neo-Baroque style. Previously, there was a wooden church from 1709, here, then replaced with a brick one from 1878. These buildings were not lucky, as was Janów itself, burned by the Russian army during the January Uprising, and later shelled by the Germans during the First World War, and finally devastated by two fires in the first half of the twentieth century.