Range from the cheapest Fix a leak £180 (Mr Engineers Ltd based in EN4) to the dearest Fix a leak £440 (Emergency electrician based in N3).
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 North Finchl.