South tower and porch added early C14.
Chancel rebuilt in C15, when nave lengthened.
Repairs of 1694 and 1729 (panels on south wall).
Nave has two C15 3-light windows to north and south walls, much restored.
Immediately east of the eastern window (5) are the E. splay and part of the cill of a medieval window, straight joint between the two indicating former extent of nave.
C15 west window is of 3 cinquefoiled lights with vertical tracery in a pointed head, with a moulded label and returned stops.
The north chapel has a restored early C14 E. window cf 3 trefoiled ogee lights with tracery in a pointed head.
West wall has a blocked lancet window, C13.
West vestry, C19, of polygonal form, reset in the W. wall is a C15 doorway with moulded jambs flanked by small square buttresses set diagonally.
Interior: Nave, north wall has C14 archway, segmental pointed, to N. chapel.
E. wall has a C15 lower doorway to the road loft staircase, with moulded jambs and 4-centred head.
Roofs: nave, mid C19, with depressed vaulting and angels holding Apostles' shields-of-arms at the springers.
Fittings: Rood-screen, oak, 5 bays including doorway, divided by grouped shafts supporting ribbed soffit of loft.
Panelled dado, six panels to a bay, with trefoiled ogee and crocketed heads, moulded and carved rail.
Open upper panels of six cinquefoiled ogee lights with vertical tracery in pointed heads, C15.
Doors: S. doorway, medieval.
W. doorway, 2 leaves with 4-centred head and panelled, C15.
Font-cover in tower, octagonal with base of quatrefoils and pierced traceried sides, C15.
ST5818 : Trent, St. Andrew's Church: c19th Perpendicular-style font with c15th cover 3
Pulpit: octagonal, with carved angles including figures, each face with cartouche below and figure- subject above, probably Dutch, c.
Glass: chancel E. window, collection of C16
C17 Swiss, German and other glass placed here in C19 by Rev. Turner.
N. and S. windows have glass by Wailes, 1842, with figures of Apostles.
Helmets, late C16
C17 in north chapel.
Against arch to nave, monument of plain side- columns supporting an entablature with achievement-of-arms of Gerard impaling Coker, and painted decoration on respond at back.
C17 monuments to Gerards, and to Sir Francis Wyndham, Bart, 1676.
ST5818 : Trent, St. Andrew's Church: Sir Francis Wyndham (d. 1715) memorial on the nave wall
On wings are the names of the rector, churchwardens, maker and date, George Gaylard, 1698. (RCHM, Dorset I, p 253(1)).