Range from the cheapest Fitting a boiling water tap £80 (Kevin Plumbing Gas and Heating based in E2) to the dearest Fitting a boiling water tap £200 (Cube gas based in E2).
Comparing plumbers estimates for Fitting a boiling water tap 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 for fitting a boiling water tap by posting your job to plumbers in EC4R.