24/7 EMERGENCY
Burst pipe? Boiler down? No hot water? Engineers on call right now —
24/7 EMERGENCY
Burst pipe? Boiler down? No hot water? Engineers on call right now —
Damp patch, high water bill, or a leak you can’t locate? Our engineers use acoustic, thermal and tracer gas technology to find hidden leaks across the Square Mile — without unnecessary digging or wall damage.
EC1
EC2
🔒 No obligation. Fixed price confirmed before any work starts.
Hidden leaks rarely announce themselves clearly — they show up as small, easy-to-dismiss signs first. These are the patterns residents across the Square Mile tell us about most.
Common in Barbican and older converted buildings, where a stain can point to a leak well away from where it appears.
A steadily climbing bill with no change in usage is often the first sign of a concealed supply leak.
A gradual pressure drop across taps can indicate a leak feeding off the mains supply somewhere in the system.
Common in the City's high-rise blocks — a leak in your flat can quickly become a neighbour's problem too.
A methodical, non-invasive process designed to find the exact source of a leak before any repair work is even discussed.
We review the signs you've noticed, check the water meter, and identify the likely area of the property to investigate first.
Acoustic listening equipment, thermal imaging and tracer gas are used to pinpoint the leak without lifting floors or opening walls.
Once located, we confirm the exact position and cause, and provide a fixed price for repair before any further work begins.
If you'd like us to carry out the repair, it's completed, tested, and signed off with a written report the same visit where possible.
Different leaks need different detection methods — our engineers are equipped for all of them.
Sensitive listening equipment picks up the sound of water escaping under pressure, even through walls, floors and shared pipework.
Identifies temperature differences caused by escaping water or heating fluid, useful for tracing leaks behind walls and under floors.
A safe, non-toxic tracer gas is introduced into the system and detected as it escapes — highly accurate for hard-to-locate leaks.
Guesswork leads to unnecessary damage. A proper detection survey protects your home and your budget.
Non-invasive methods mean we don't open up walls or lift floors speculatively — only where the leak is confirmed.
An undetected leak can run for months, quietly inflating your bill. Finding and fixing it stops the waste at the source.
Quick, accurate detection reduces the risk of a leak causing damage to flats below or adjacent units.
A written report with findings and photos, useful if you need to support an insurance claim for water damage.
Fixed prices agreed before we start. Any repair work is quoted separately once the leak is confirmed.
Fixed Price
Most Common
Fixed Price
After Detection
Acoustic, thermal and tracer gas equipment carried as standard, so we're never guessing at the right approach.
Familiar with the shared pipework layouts common in the City's residential towers, coordinating with building management where needed.
Our detection survey stands alone — you're never obligated to book a repair with us once the leak is found.
Same pricing whether you're in EC1 Barbican or EC4 St Paul's. No zone uplift, ever.
“Our water bill had almost doubled with no explanation. The engineer used tracer gas and found a concealed supply leak in about two hours, without opening up the whole flat.”
Office Manager, Bank, EC3
“Our downstairs neighbour reported a leak coming through their ceiling. Thermal imaging traced it to our bathroom fast, repaired the same day, no unnecessary holes in the wall.”
Building Manager, Moorgate, EC2
“Persistent damp patch on our lounge ceiling for months in our flat near St Paul’s. Turned out to be a leaking heating pipe, found accurately and quickly. Fixed price throughout.”
Facilities Manager, St Paul's, EC4
We use acoustic listening equipment, thermal imaging and tracer gas to pinpoint the location of a leak without needing to open walls speculatively.
Each method suits different leak types, and your engineer will select the right approach based on the signs you've noticed.
A standard leak detection survey using acoustic and thermal methods starts from £149.
For harder-to-locate or repeat leaks, a full survey including tracer gas is £220.
Any repair work is quoted separately once the leak is confirmed.
No, our leak detection survey is a standalone service.
Once the leak is located, you'll receive a fixed price for the repair, but there's no obligation to book that work with us.
Yes.
We regularly investigate leaks affecting neighbouring flats in the City's high-rise buildings, and can coordinate with building management or freeholders where the leak's source isn't immediately clear.
Yes.
We cover the entire City of London — Barbican, Smithfield, Moorgate, Liverpool Street, Bank, Monument, St Paul's and Blackfriars — postcodes EC1, EC2, EC3 and EC4.
Yes.
We provide a written report with our findings and photographs from the survey, which you can use to support a home insurance claim for water damage.
We typically schedule leak detection surveys within 24 to 48 hours of your enquiry.
If the leak is causing active flooding or significant water loss, call our emergency line and we'll prioritise a faster response.
Don’t guess or start digging. Book a non-invasive leak detection survey and get a clear answer, fast.
We also cover these neighbouring boroughs — same fixed prices, same detection technology.
