The dressings and arcades are of Lincolnshire limestone, while the primary wall surfaces are painted and plastered. The floors are of with marble and woodblock in the church. At the west end is a stone organ display. Underneath this in the south west corner is a stone vaulted previous baptistery, presently adjusted to serve as a confessional. The Norman style nave arcade has round piers with scalloped capitals and stone crotch vaulting to the aisles. There is a high crotch vaulted roof at the crossing, while the transepts like the nave are wood barrel vaulted. The sanctuary has a seven-curved arcade with a crotch vaulted walking, with the later sacristy leading off toward the east. There are two side chapels on the eastern side of the transepts: the shrine to Our Lady of Light on the north side, and the Blessed Sacrament (earlier Sacred Heart) house of prayer on the south side. Outside, the nave is of four bays, with round-headed windows, clerestory and corbel band at eaves level.