Range from the cheapest Fix a leak £140 (H&F based in CR4) to the dearest Fix a leak £380 (Emergency Plumbers 24/7 based in SM4).
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 SM4.