Range from the cheapest replacement of a toilet float valve £20 (K11 Plumbing and Property Maintenance based in SL9) to the dearest replacement of a float valve £90 (Local Plumbers (London) Limited based in SL9).
Comparing plumbers estimates for replacing a toilet float valve in the cistern tank 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 toilet float valve in HP8 by posting a job with HaMuch and we will send it to plumbers in HP8.