Range from the cheapest price to Unblock a sink £50 (MJM Plumbing & Property Maintenance based in SE25) to the dearest cost to Unblock a sink £170 (1977 - Denham Plumbing and Gas based in SE26).
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 SE20 by posting a job with HaMuch and we will send it to plumbers in SE20.