Range from the cheapest basement sump pump installation £540 (Kalmans plumbing based in IG9) to the dearest basement sump pump installation £1497 (Heat Nest Ltd based in N9).
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 E4 by posting a job with HaMuch and we will send it to plumbers in E4.