Range from the cheapest basement sump pump installation £540 (North London Plumbing Heating & Builders based in N13) to the dearest basement sump pump installation £1620 (Junior's Plumbing drainage & heating based in EN4).
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 N14 by posting a job with HaMuch and we will send it to plumbers in N14.