The station and all trains serving it are operated by Great Western Railway.

New aluminium and perspex passenger shelters and a replacement "help point" machine were added in 2006.

[4] As of October 2008, Oyster "pay as you go" can be used for journeys originating or ending at Castle Bar Park.

[5] All services at Castle Bar Park are operated by Great Western Railway using Class 165 DMUs.

The station is served by two trains per hour between Greenford and West Ealing on weekdays and Saturdays only.