St Aidan's Church is in Main Street, Billinge, St Helens, Merseyside, England. It is an active Anglican parish church in the diocese of Liverpool. It was built in 1716–18 to replace a chapel of ease on the site, and was remodelled and extended in 1907–08. The church is recorded in the National Heritage List for England as a designated Grade II* listed building. History The church originated as a chapel of ease in about 1539. The chapel was replaced by the present church which was built between 1716 and 1718, and was designed by Henry Sephton. A major influence in this rebuilding was James Scarisbricke, a Liverpool merchant who donated £200 towards its cost. The church had a rectangular plan measuring by with a small apse at the east end, and could seat 200 people. Galleries were added to the north and south sides of the church in 1823 and 1824 respectively. The church became a separate parish in its own right in 1828. The building was rebuilt and extended in 1907–08 by T. G. Jackson. He moved the apse towards the east, adding a transept to the south, and an organ loft and vestry to the north, thereby increasing the size of the chancel. At the same time the north and south galleries and the box pews were removed. A glass screen was inserted under the west gallery in 1993. Architecture Exterior St Aidan's is built in stone and has a stone-slate roof. Its plan consists of a four-bay nave, a south transept forming a chapel, a north organ loft, and a chancel with a round apse. At the west end of the nave are pairs of corner pilasters, and portions of a triglyph frieze. In the centre is a doorway flanked by detached Doric columns. The doorway has an architrave and a fanlight. Above the doorway is a small tower with Ionic pilasters at the corners, between which is a three-light window with a square head containing Gothic tracery, and above that is a clock face. On the top of the tower are four urns at the corners, and a cupola containing a bell. The cupola is carried on Tuscan columns, and is surmounted by a ball finial and a weather vane. Along the sides of the nave are three-light round-headed windows with triple keystones and containing reticulated tracery. Between the bays are Doric pilasters. Above the windows