5% off your first Design & Build project · 10% off when you refer a friend · Building & construction only
Concealed leaks are the most expensive kind of plumbing fault — because you pay for the damage before you pay for the repair. We locate the source with minimal disruption and fix it cleanly, first time.
Gas Safe registered · £2M insured · 30+ years in the trade · 24/7 emergency line
What it is
Non-invasive leak detection and repair — mains water leaks, hot and cold pipework, central heating leaks, cylinder leaks and appliance leaks. Investigation, location, repair and reinstatement.
Who it's for
Homeowners, landlords and commercial premises seeing damp patches, unexplained water bills, boiler pressure drops or ceiling stains.
When you need it
When you can hear water when everything's off, when the boiler needs topping up too often, when a ceiling shows a growing stain, or when the water meter keeps turning with nothing running.
Why use a professional
A leak found early is a repair job. A leak found late is a rebuild. Getting the location right first time saves cutting open five wrong ceilings.
The cheapest time to deal with a plumbing or heating fault is almost always now. Water damage, gas issues and system stress compound quickly — the invoice grows with them.
If you leave it
Common DIY mistakes
You get the same sequence every time — so there are no surprises on the invoice and nothing missed on the job sheet.
We walk through when you first noticed it, what changed, boiler pressure history and any recent building work.
Systems are isolated and pressure-tested to confirm which one is losing water — mains, hot, cold or heating.
Thermal, acoustic and visual methods used to narrow the source before opening anything.
Minimum-invasive access — small openings in the right place, not exploratory demolition.
Correct-fitting repair on the identified section, tested under pressure before reinstatement.
Openings made good; written summary provided for your records and your insurer if relevant.
We locate before we cut. That's the difference between one small opening and a demolished ceiling.
We identify which system is leaking (mains, hot, cold, heating) before touching anything.
Written diagnosis and photos for insurers who will otherwise argue the toss on cause and date.
Repair confirmed under real pressure — not just eyeballed dry after the visit.
Same team detects, fixes, and reinstates — no scheduling three trades for one leak.
Where the same section keeps failing, we re-route in modern materials rather than patch again.
There are only a handful of ways a home can leak water. Correct diagnosis starts by ruling systems out one at a time.
Signs: water meter turning with everything off, unexplained bill spikes, damp along the mains route (drive, front path, kitchen wall). Isolation at the external stopcock and internal stopcock quickly proves which side of the internal stop the leak is on.
Signs: boiler pressure dropping over days or weeks. Sealed systems shouldn't lose pressure at all. Pressure-testing sections of pipework and radiators identifies the loss, whether it's a hairline pipe crack, a failed radiator valve, or a leaking heat exchanger inside the boiler.
Cylinders, immersion flanges and expansion vessels can weep quietly for months. Continuous drips at the tundish, damp inside the airing cupboard or corrosion on the cylinder are all common tells. G3 qualified diagnosis and repair.
Thermal imaging and acoustic listening help pinpoint the source without opening walls. Where localisation is precise, a single 200mm access panel is often all that's needed — vs. tearing off an entire tile splashback.
Dishwashers, washing machines and instant-hot-water taps all fail differently to pipework — supply pipes, drain hoses, pump seals. We check appliance connections as part of the diagnosis so a 'plumbing leak' doesn't turn out to be a washing machine seal.
Nothing here is generic — these are answers we give West London customers every week.
Ask us directlyWe isolate systems, pressure test to identify which system is leaking, then use thermal imaging and acoustic listening equipment to localise before making any access opening.
For an emergency detection visit the rate is £80 for the first hour, then £120/hr. Planned detection is quoted fixed after we understand the symptoms.
Yes. Written diagnosis, cause, photographs and repair record — the paperwork insurers want to process a claim without argument.
Most leaks are localised inside the first hour or two on site. Repair time depends on access and the specific fault.
Where possible, yes. Some repairs require parts (e.g. specific valves, cylinder components) and are booked back in with a firm price.
We make good the access openings we create as part of the plumbing repair. For decorative reinstatement (redecoration, tiling) we can quote as part of a wider works package via our design & build team.
Boiler pressure dropping, water meter turning with nothing running, sudden water bill increase, unexplained damp patches, mould appearing on internal walls, tapping/hissing sounds when the house is quiet.
Only as a last resort and only in the exact identified location. Minimum-invasive access is the standard.
No pressure, no obligation. A Gas Safe engineer visits, scopes the job in person, and puts a written quote in your inbox — usually within 2–3 working days. For emergencies, call the line — it's answered 24/7 by the team, not a call centre.
Gas Safe registered · £2M insured · 30+ years in the trade · 24/7 emergency line
