Prominently sited on a hill-top overlooking Fergus, St. Andrew's was the dominant visual landmark as well as the religious focus of this Scottish community during the second half of the 19th century. It was erected in 1862 to serve a congregation established almost 30 years before and replaced an earlier church which stood on the site. Designed by David Murray of Guelph and built of locally-quarried stone, this attractive Gothic Revival structure is distinguished by its high-pitched roof, massive buttresses and elegant spire. Since its completion St. Andrew's has undergone several interior and exterior alterations, notably the erection in 1968 of a large addition incorporating Sunday school and meeting rooms and Fellowship Hall. The church, nevertheless, retains much of its original character.