The Harrison & Harrison organ was dedicated by the Bishop of Winchester on Sunday 10 September 2006. Robert Quinney gave the inaugural recital on 21 October 2006.
The organ draws its inspiration from the J.W.Walker organ installed in the old church in 1867. The technical detail and musical style of the organ is drawn from the Walker idiom.
The specification is based upon a scheme submitted by Walkers in 1870 to expand the organ. It has been slightly augmented for the larger Waterhouse Church and to better meet modern musical requirements.