Hot water leak under an en suite floor
The property
A large detached house, extended at the side and into the loft, with five bathrooms and an upstairs cylinder. The first floor is timber, tiled over boards.
The problem
The meter crept round overnight with nothing in use. Nothing looked wet, though the dining room ceiling under one en suite felt faintly warm.
How we found it
Shutting the cylinder's cold feed halted the dial, so the hot side was leaking. With hot taps running, the camera showed warmth spreading under that en suite, and tracer gas agreed.
The outcome
Our mark meant lifting just two floorboards, and we fixed the pipe there and then, at a separate price agreed beforehand.