Range from the cheapest basement sump pump installation £450 (Gas4u based in PO6) to the dearest basement sump pump installation £960 (A Mitchell Gas Services based in PO4).
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 Portsmo by posting a job with HaMuch and we will send it to plumbers in Portsmo.