"An engineer inspects exposed water pipes under lifted bathroom floorboards during a leak survey in London."Trusted Plumber London has published its London prices for plumbing and leak detection and a breakdown of what customers book it for.

About half of its plumbing, heating and leak jobs are water leaks, followed by toilets and taps, boilers and heating, cylinders and drains.

Main water leak detection is 595 fixed, with no find, no fee.