Range from the cheapest basement sump pump installation £600 (Combi Comfort based in SA4) to the dearest basement sump pump installation £1200 (Heating & Plumbing Solutions based in SA10).
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 Sketty by posting a job with HaMuch and we will send it to plumbers in Sketty.