Range from the cheapest leak detection £135 (East London Gas based in E3) to the dearest leak detection £315 (Cube gas based in E2).
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 E1W by posting a job with HaMuch and we will send it to plumbers in E1W.