Range from the cheapest replacement of a toilet float valve £30 (First Choice Heating and Gas Limited based in SM5) to the dearest replacement of a float valve £90 (Yonas Eyeas based in CR4).
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 SM5 by posting a job with HaMuch and we will send it to plumbers in SM5.