Range from the cheapest Fix a leak £140 (T Graham Plumbing & Heating based in FK1) to the dearest Fix a leak £240 (SO Gas Services based in ML8).
Comparing plumbers estimates for Fix a leak 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 for fixing a leak in your home by posting your job to plumbers in ML7.