Range from the cheapest price to Unblock a sink £50 (CC&D BUILDING LTD based in e7) to the dearest cost to Unblock a sink £140 (Golden Hands Handyman based in E7).
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 Stratford by posting a job with HaMuch and we will send it to plumbers in Stratford.

"Unblock a sink. The is not moving in at all"
E15
"Unblock a sink please "
E11