Range from the cheapest price to Unblock a sink £100 (Mr S J Reece based in SE7) to the dearest cost to Unblock a sink £140 (Mcgilway Hall based in SE18).
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 Woolwich by posting a job with HaMuch and we will send it to plumbers in Woolwich.

"Unblock a kitchen sink"
SE18
"Unblock a sink for kitchen "
SE18