Range from the cheapest replacement of a toilet float valve £50 (Shakina Glory Removals based in N7) to the dearest replacement of a float valve £90 (Steve’s Plumbing and Heating Services Ltd based in NW5).
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 Holloway by posting a job with HaMuch and we will send it to plumbers in Holloway.

"Fill and flush valves requires a renewal "
N4
" Replace the float valve in the toilet cistern. I have a classic closed-coupled toilet with a cistern behind the toilet. The know gets stuck in the cistern, and as a result, the cistern is not flushing. I think that the mechanism is rusty and might need to be replaced. When can you do the job and..."
WC1H