Range from the cheapest bath upgrade £230 (R M Group Services based in ME7) to the dearest bath upgrade £400 (THE COMBI-MAN based in ME5).
Comparing plumbers estimates for bath replacement gives you an idea of who will be better value but the best way to compare costs is to get actual quotes.
What to do - Get rates and quotes to replace a bath in ME4 by posting a job with HaMuch and we will send it to plumbers in ME4.