Interior
Plastered walls, 4 x 3-bay roofs with arch-braced collar-trusses elaborated with further bracing above collars. Trusses rest on ashlar corbels with leaf carving (8 out of 16 left uncarved). Impressive roof structure over 18' square crossing, the crossed trusses springing from quatrefoil shafts at the angles, the shafts with carved corbels and caps. The bases have Christian symbols: dove, lamb etc, while caps have armorial shields. From the apex hangs a brass corona, apparently designed for oil lights.
W end organ loft of 1913, the organ, by Jardine & Co, Manchester, divided each side of the W window. N transept has memorial to Darlington family dd 1866-94, fine N 3-light stained glass window, 1867, by Alexander Gibbs to A Reid, chairman of the mining company, subjects Good Shepherd and Healing the Sick. S transept has S 3-light stained glass by Celtic Studios to Canon E R Jones, d 1951, the Good Shepherd, with arms of the 6 dioceses, and W 2-light by G Maile Studios to Rev H Jones, vicar 1960-76, SS Mary, Tudfil, David and Andrew. Plain octagonal font. Plain pointed door in W wall into passage to porch in tower. Tower base has eroded plaque to R Hughes, 1733. In tower, peal of 10 bells, 1923, by Taylor of Loughborough. In the crossing, pulpit of 1935, apparently made of cast stone, Gothic.
Chancel has fine 4-light E window signed by Alexander Gibbs, 1866, to J Burton of Minera Hall, 4 scenes of the Life of Christ under canopies, deep colours. N wall has elaborate recess (for harmonium originally) with triple arch, the centre arch carried on 2 angel corbels, vestry door under right arch. Pitch-pine stalls, open-fronted kneelers with Gothic column shafts, and punched roundels in bench-ends. Vestry to N.