Range from the cheapest water softener fitting £150 (James Campbell based in SE6) to the dearest water softener fitting £300 (Dulwich Plumber based in SE13).
Comparing plumbers estimates for fitting a water softener 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 fit a water softener in SE23 by posting a job with HaMuch and we will send it to plumbers in SE23.