Range from the cheapest price to Unblock a sink £80 (Heating Point Ltd based in E2) to the dearest cost to Unblock a sink £200 (Cube gas based in E2).
Comparing plumbers estimates for unblocking a sink 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 unblock a sink in EC3V by posting a job with HaMuch and we will send it to plumbers in EC3V.