Range from the cheapest replacement of a hot water immersion heater £205 (Nat gas based in BR3) to the dearest replacement of a hot water immersion heater £375 (J Williams based in BR3).
Comparing heating engineers estimates for replacing a hot water immersion heater 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 replace a hot water immersion heater in BR3 by posting a job with HaMuch and we will send it to heating engineers in BR3.

"Replace a hot water immersion heater element"
BR3
"Replace a hot water immersion heater"
SE26