No floor lifted and the leak still found
September 2026 · Written by Zaid Petersen, Klipspringer Plumbing
A retired homeowner wanted a second opinion before anyone broke up her kitchen floor. We found the hidden hot-water leak without lifting a single tile.
At a glance
- The problem. The meter kept moving overnight with every tap closed, but no damp walls and no puddles outside.
- What we did. Isolated the system tap by tap, then traced the hot pipe under the tiles with an acoustic listener and a thermal camera.
- How long. A day and a half.
- The result. The meter now stands still overnight. The floor and the cupboards were never touched.
Before
The meter kept ticking over at night. Every tap in the house was shut, yet the dial still crept round. No damp walls to point at. No puddles in the garden either.
A previous contractor had a plan for that silence: break up the kitchen floor to hunt for the leak. That meant moving units and going without a kitchen for a week.
A week without a kitchen is a lot to ask of anyone, so she held off. She wanted a second opinion before anyone picked up a chisel. There had to be a way to find the leak without wrecking the floor first.
What we did
- Zaid closed the main stopcock and watched the meter stop. That ruled out the line coming in from the street.
- He isolated the hot and cold sides on their own. The meter only moved with the hot side open, so the trouble sat in the pipe running from the geyser to the kitchen.
- He ran an acoustic listening device along the floor, following the sound of the water escaping. A thermal camera then showed a warm strip under the tiles near the back door, right where the hot pipe ran in the slab.
- The pipe was over forty years old. Rather than dig up the floor, Zaid capped the old hot line at both ends.
- He ran a new pipe through the roof space and dropped it down inside a cupboard to the kitchen tap.
After
Overnight, the meter now stands still. The dial that would not stop has finally gone quiet.
Nobody lifted the kitchen floor. The cupboards stayed put. Hot water at the sink even arrives faster now, because the new route is shorter than the old one. The only visible change was a neat pipe inside the corner cupboard.
The whole job took a day and a half. We left her a short written report with photos of the thermal readings, in case her insurer asked for it. Not every job runs this clean, though.
The limits
Take this one. The leak gave nothing away up top. No damp on the walls, no puddles outside, so there was no easy spot to point at.
The pipe was buried in the slab under the kitchen tiles and it was over forty years old too. Cutting it out would have meant lifting the floor and losing the kitchen for a week. This is one job, on one house, with its own faults.
Frequently asked questions
How long did the job take?
The job took a day and a half, start to finish.
Did the floor have to be broken up?
No. The hot pipe was capped at both ends and a new pipe was run through the roof space and down inside a cupboard. The kitchen floor and cupboards were never touched.
What did the job ask of the customer?
She waited for a second opinion before any work began, after a previous contractor wanted to lift her kitchen floor and leave her without a kitchen for a week. In this case, no floor was lifted and no week was lost.
Is this typical of a hidden leak job?
This was one job on one house. The meter kept moving overnight with no damp walls and no puddles outside, so there was no obvious spot to point at and the pipe sat buried in a slab over forty years old. Those were the conditions on this job. They will not match every hidden leak.
About the author
Ready When You Are
She asked for a second opinion before anyone broke up her kitchen floor. Zaid found the leak with a listening device and thermal camera, capped the old slab pipe and ran a new one through the roof, so the floor stayed put. Ready to go further? Read how Leak detection works, then decide from there.