Interior
Fine clustered scissor-truss roof to tall nave, on stone-corbelled wall plate. Four-bay arcade with pointed limestone arches and moulded sandstone labels; these with carved head stops. The arcade columns are of polished Mona marble on moulded limestone bases. Naturalistic foliage carving to capitals, each representing different plants or leaves observed from nature. Engaged half-columns to W and E ends with similarly-carved capitals and corbel supports. Black and red quarry tile pavement and original pitch pine pews with shaped and moulded pew-ends. Early English style font of Llaniestyn red-stone (from the Marquis of Anglesey's quarry) with three different additional types of marble; large basin on a moulded base with 4 columnar supports with naturalistic foliage capitals. The whole is raised up on a tooled limestone plinth of cruciform plan, with steps on all sides; moulded top with fine wrought iron decoration to wooden font cover. Square pulpit of similar style and material with marble stepped access; engaged corner columns, moulded base and top and a central quatrefoil with the Christological monogram. Simple roofs and similar pavements to aisles, with tall tracery windows breaking the eaves. Their gables are supported internally on fine foliated corbels. Returned, moulded label to S entrance inner face, with further carved heads as label stops. Fine contemporary grisaille stained glass to W window, by James Powell and Sons. Commemorative figurative stained glass windows to the aisles, that to the S aisle and two to the N aisle are to Townsend Mainwaring, JP, MP, of Galltfaenan Hall, (d1884) and include heraldic panels. That to the E end of the N aisle is to Whitehall Dod of Llannerch Hall (d1878). Various C19 and C20 wall brasses, chiefly to the Mainwaring family. Fine chancel arch with engaged outer columns and inner half-columns; foliated capitals and corbels, with double-moulded, pointed arch of sandstone and complex vinescroll carving to both nave and chancel sides; head carving to label stops. The chancel is stepped up and has a pointed waggon vault, compartmented with wooden moulded ribbing and Perpendicular-style gilded and polychromed shields and bosses; Brattished wall plate with similar carved, foliate bosses. The chancel has been stripped of its plaster. Inlaid marble floor (in memory of W P Jones of Llannerch, 1955) and similar to stepped-up sanctuary. Two further grisaille windows by Powell and Sons to S side. Large E window with stained glass depicting the Passion and commemorating Col. John Lloyd Salusbury (d1852) and his wife (d1846); by William Wailes and signed with monogram and dated 1854. Fine oak choir stalls in Arts and Crafts Perpendicular style, commemorating W C Jones of Llannerch Hall, 1909; blind and pierced tracery to bench ends and frontal carving. The sanctuary walls are panelled with fine, re-used oak arcaded carvings with intricate wreathed heraldic shields; these were taken from Kinmel Park in 1936 and installed to commemorate W D Williams. Simple, contemporary oak altar rails with fielded posts and moulded rail. Great War commemorative marble tablet to N wall; by Sir Giles Gilbert Scott. Large pointed sandstone arch off chancel to N chapel, with columns and detailing as nave; decorative wrought-iron scroll-work screen within. Narrow pierced Perpendicular oak screen to N chapel from N aisle, also by G G Scott; in memory of R F Birch, d1915, central panelled door. C14 style parclose screen to (original) vestry at E end of N chapel, with moulded and cusped tracery to upper section and panelling below; central entrance. Above, the contemporary organ loft with central organ; in Perpendicular case with flanking ogee-arched screen sections.