Range from the cheapest leak detection £30 (Plumerr based in sE14) to the dearest leak detection £285 (Dulwich Plumber based in SE13).
Comparing plumbers estimates for finding 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 to detect a leak in New Cross by posting a job with HaMuch and we will send it to plumbers in New Cross.