Range from the cheapest installation of a thermostatic mixer shower £100 (Karol Szymanski based in BR5) to the dearest installation of a thermostatic mixer shower £375 (Radinstallations based in BR2).
Comparing plumbers estimates for replacing a thermostatic mixer 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 thermostatic mixer shower in BR6 by posting a job with HaMuch and we will send it to plumbers in BR6.