St Augustine's Episcopal Church, High Street, Dumbarton

St Augustine's Episcopal Church in Dumbarton is a Gothic church designed by architect Robert Rowand Anderson of Edinburgh, dated 1873. It features an 8-bay, aisled structure with a principal gabled elevation facing High Street. The exterior is made of polished ashlar, with the remainder finished in stugged stone and polished dressings. The central entrance is a recessed door with splayed reveals, topped by a moulded pointed arch. Above this is a large window with geometrical tracery and circular panels in the spandrels, along with a hood-moulded vesica in the gable-head. The church has angle buttresses, saw-tooth skews, and a cross finial. To the left, there is a low square extension with a plate-traceried window, and similar windows and doors are located in the re-entrant angle. The aisle window to the right features geometrical tracery and a hood-mould. The clerestory windows have pointed heads and are paired over the nave.

Inside, the planned decoration has been gradually completed. The chancel, nave, and north aisle are arcaded, with the aisle supported by circular and octagonal columns. The chancel arch is set on clustered columns. A delicate and elaborately carved chancel screen features cusping and traceries, topped with a central gable. The altar rails are adorned with carved angels on the gate posts. The altar and reredos were dedicated in 1893, and there is a war memorial by R M MacNaught of Denny & Blain, dating from around 1923. The church contains some leaded glass windows, including one in the eastern aisle by W Gibbs, which is in poor repair, and another by Stephen Adam from 1897 located in the western aisle at the south end. The roof is timbered.