Range from the cheapest basement sump pump installation £450 (MJM Plumbing & Property Maintenance based in SE25) to the dearest basement sump pump installation £1050 (RM Plumbing and Heating based in CR0).
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 SE20 by posting a job with HaMuch and we will send it to plumbers in SE20.