Range from the cheapest basement sump pump installation £510 (Bailey plumbing based in Se7) to the dearest basement sump pump installation £1620 (Dulwich Plumber based in SE13).
Comparing plumbers estimates to install a basement sump pump 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 install a basement sump pump in SE12 by posting a job with HaMuch and we will send it to plumbers in SE12.