There are a number of 'traditional' bus routes serving Frodsham. The 48 runs between Frodsham and Northwich, with the others terminating in Chester.
The various bus stops (and their routes) can be found here with the various timetables and operators detailed below:
47 - Frodsham - Overton & Ship Street A bus service operated by D & G Bus
48 - Frodsham - Northwich A bus service operated by D & G Bus
2 - Chester Bus Interchange - Runcorn A bus service operated by Stagecoach Merseyside and South Lancashire
2A - Chester Bus Interchange - Runcorn A bus service operated by Stagecoach Merseyside and South Lancashire
X30 - Chester Bus Interchange - Warrington Bus Interchange A bus service operated by Arriva North West
From 31 July 2023 there is a new bookable 'iTravel' pilot scheme. More details of this service can be found here.
More:
Bustimes.org contains a 'live' map of running buses and stops.