Range from the cheapest installation of a power shower £295 (Ish Kumar based in TW5) to the dearest installation of a power shower £475 (ThePlumbers.org based in TW7).
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 Tw by posting a job with HaMuch and we will send it to plumbers in Tw.