Range from the cheapest bath upgrade £200 (Robin Greenfield based in HP10) to the dearest bath upgrade £500 (Runnymede Response Ltd based in SL1).
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 SL8 by posting a job with HaMuch and we will send it to plumbers in SL8.