Bus routes as well as timetables are available on the Surrey County Council website Blackwater Valley page.
Bagshot station is on the Ascot to Guildford line which stops at Ascot, Bagshot, Camberley, Frimley, Ash Vale, Aldershot, Ash, Wanborough and Guildford. There is a service to London Waterloo (mainly rush hour).
South West Trains timetables
The station is located on Station Rd, Bagshot GU19 5AS