There have been two major alterations to the original church. In the 15th century the building was updated in the perpendicular style. At this time the roof was raised and a clerestory added with perpendicular windows, and four square headed windows were let into the south wall. The chancel has a very unusual south window, with most of the tracery on the lower half. There is also a small, low, 'leper' window, which would allow Communion to be passed to those who were not allowed into the church.

1846 saw another restoration. The village's population was at its height of over 450 people and a new north aisle was added to accommodate the bigger congregation. New pews were fitted and the double ones at the front were for the occupants of Swerford Park on the south side and Swerford House on the north.

Other refurbishments included the replacement of the east window in 1859 and a new oak altar, communion rail and clergy seats in the chancel in the 1930's. The splendid gilded cockerel which now graces the spire and catches the morning sun replaced a more mundane pigeon-like weathervane at the same time.