Range from the cheapest installation of a power shower £590 (Mano based in E2) to the dearest installation of a power shower £930 (Monument Plumbing Services Ltd based in N1).
Comparing plumbers estimates for fitting a power shower 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 power shower in EC3 by posting a job with HaMuch and we will send it to plumbers in EC3.