St Mary’s Church is in the centre of the market town of Nantwich, Cheshire, England. The church is recorded in the National Heritage List for England as a designated Grade I listed building. It has been called the “Cathedral of South Cheshire” and it is considered by some to be one of the finest medieval churches, not only in Cheshire, but in the whole of England. The architectural writer Raymond Richards described it as “one of the great architectural treasures of Cheshire”.

The building dates from the 14th century, although a number of changes have since been made, particularly a substantial 19th-century restoration by Sir George Gilbert Scott. The church and its octagonal tower are built in red sandstone. Features of the church’s interior include the lierne-vaulted ceiling of the choir, the carved stone canopies of the sedilia in the chancel, and the intricately carved wooden canopies over the choirstalls together with the 20 misericords at the back of the stalls.

RCL Construction has undertaken various conservation works to replace and restore external rain water systems.