[4] As the town expanded during the Industrial Revolution and the population increased, the old chapel was replaced by a larger building in 1782.

[5] Almost fifty years later, the second chapel was replaced by the present church which was designed by Francis Octavius Bedford and consecrated in 1831.

The Commissioners paid £5,621 (equivalent to £640,000 in 2023),[8] the remainder was provided by the Ridgway family, owners of Wallsuches Bleach Works.

[4][6] The chancel, designed by Bolton architect Richard Knill Freeman,[1][11] was added to the east end of the church in 1903 in memory of the Reverend Henry Septimus Pigot, vicar for 48 years.

[1][7] Holy Trinity Church is built in stone with a slate roof in the Gothic Revival style.

The west tower has octagonal turrets which become angled buttresses above roof level and open tracery embattled parapet with corner crocketted pinnacles.