Range from the cheapest leak detection £75 (Krzysztof Zakrocki based in N18) to the dearest leak detection £255 (Construct plumbing &Appliance based in E4).
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 N17 by posting a job with HaMuch and we will send it to plumbers in N17.