Using thermal imaging, acoustic surveys, and tracer gas testing, our specialists pinpoint hidden leaks fast — without unnecessary damage to your property.
We provide a full range of non-destructive leak detection services for homeowners and landlords across London and the Home Counties.
We locate the exact source of escape-of-water incidents using thermal imaging, acoustic listening, and tracer gas technology, with no unnecessary damage. A full digital report is provided to support your insurance claim.
Leaks hidden beneath floors or behind walls are found using specialist acoustic and thermal equipment. We pinpoint the source precisely, so only the affected area needs attention, not your entire floor.
Rising water bills or unexplained wet patches in your garden often point to a mains supply failure. We locate underground leaks without excavating your full driveway or garden.
A hidden leak can cause thousands of pounds of damage before it's visible. PrimeFix specialists pinpoint the exact source — behind walls, under floors, or in underground pipes — using thermal imaging, acoustic equipment, and tracer gas testing.
No unnecessary damage, full digital report for your insurer.
PrimeFix brings the precision, documentation, and transparency that homeowners and their insurers rely on.
Every investigation follows the same process. No guesswork, no unnecessary damage under any circumstances.
Here’s what we use to find your leak.
Your boiler keeps losing pressure but there's no visible wet patch. We isolate the affected circuit, apply a controlled test pressure, and pinpoint exactly where to look — usually within the hour.
High-resolution infrared cameras detect tiny temperature differences caused by water moving behind walls, under floors, and inside pipework — all without lifting a single tile or opening a wall.
A damp patch, a soft floor, a ceiling stain after wet weather with no roof fault found. Moisture readings show where it's coming from, how far it's spread, and where to apply the fix.
Ground microphones and pipe-correlation devices listen for the unique sound signature of escaping water, helping us locate leaks in pressurised systems and underground water mains.
A safe hydrogen and nitrogen mix is introduced into the system and traced to the exact leak point with sensitive detectors. This is the gold-standard method for difficult, intermittent leaks.
Real engineers, real qualifications — the same trusted faces who’ll be at your door, not a subcontractor you’ve never met.
Common questions about water leak detection, answered plainly. If you don't see what you're looking for, call us on 02081080400 and we'll talk you through it.
Water leak detection is charged at an hourly rate starting at £85 for the first hour and £42.50 per half-hour after that. You’ll receive a full quote before any work begins, with no hidden call-out fees, no parking charges, and no ULEZ or congestion surcharges added on top.
Most surveys take between one and two hours, depending on the size of the property and the complexity of the pipework. We’ll give you a realistic time estimate when you book.
No. We use thermal imaging, acoustic tracing, moisture mapping, and tracer gas methods to locate the source precisely before any opening-up work begins. In many cases, no damage is required at all.
Yes. Every investigation includes a full digital report detailing the leak source, the methods used, and the findings. These reports are accepted by all major UK insurers for trace and access claims.
We operate 24 hours a day, 7 days a week, including bank holidays. Emergency callouts are available with no out-of-hours surcharge beyond our standard rate.
All PrimeFix engineers hold relevant trade qualifications including NVQ Level 2 and 3, Gas Safe registration, and NICEIC approval where applicable. We are also CHAS accredited and SafeContractor approved.
On call around the clock for emergencies. For planned work and quotes, we typically respond within the hour during business hours.
On call around the clock for emergencies. For planned work and quotes, we typically respond within the hour during business hours.
0208 108 0400
0208 108 0400
info@primefixgroup.uk
Monday to Friday 8am to 6pm | Emergency Line 24/7
Leave your details and a PrimeFix engineer will be in touch within 60 minutes.