The church is situated next to the Market Place within the historic town centre, and is Grade II* listed.

[1] St Andrew's is a large church, with a wide nave, separated from a long chancel by an early 20th century screen.

There was also a gallery in St Katherine's Chapel, also no longer in existence, though supporting stones for it can still be seen in the interior walls.

There are two singing groups involved in church services, the Robed Choir and the St Andrew's Singers.

In 1879 the instrument was rebuilt by Gray and Davison when it was moved from its original west gallery location to a north aisle organ chamber.

[3][4] The church is also a focus for many civic events and is used by a number of local groups (orchestras and choirs) as a performance venue.