Range from the cheapest replacement of a toilet float valve £30 (Jonathan Freeman based in NN2) to the dearest replacement of a float valve £50 (A.D Plumbing & Heating based in NN1).
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 NN7 by posting a job with HaMuch and we will send it to plumbers in NN7.