One straight run along the A465 brings our detection engineers to Abergavenny with everything needed to find a hidden leak the modern way — traced, confirmed and marked without a spade in the ground, for £480 + VAT fixed.
The Heads of the Valleys road makes Abergavenny a direct, familiar journey for us, and the town's blend of period streets, interwar suburbs and fast-growing new estates keeps our full toolkit busy. We help owners, landlords and holiday-let hosts across NP7 track down leaks their plumbers could not see.
The commercial arrangement never varies: £480 + VAT for the complete Trace & Find survey, quoted before travel and unchanged by whatever the property throws at us. Weekday visits run 9am to 5pm and weekend slots 9am to 2pm, which many of the town's B&B and holiday-let owners find easier to work around.
You also receive a full evidence pack after every survey — thermal captures, moisture data and photography assembled into a report that supports trace and access claims without further paperwork from you.
Local knowledge
Central Abergavenny is substantially Victorian and Edwardian — villas and terraces around Pen-y-Pound, the Grofield area and the streets fanning out from the market hall, built with solid walls, cellars and original iron or lead services that are now well past their design life. Water escaping in these houses loves to travel: along joist runs, down cavity-free walls and behind renders, surfacing far from the fault and inviting expensive wrong guesses.
Across the Usk, Llanfoist has seen some of Monmouthshire's most concentrated new-build growth, and modern estates bring their own failure modes — push-fit joints let down by installation, plastic barrier pipe chafed where it exits screed, and manifold-fed underfloor heating that loses pressure invisibly. Between the two extremes sit Mardy's interwar semis and the canal-side stone cottages of Govilon and Gilwern, each with their own habits we have learned to read.
WHAT WE FIND IN ABERGAVENNY
Coverage
Coverage takes in the whole town and the NP7 countryside around it — south over the river to Llanfoist and Llanellen, west along the canal through Govilon to Gilwern, north to Mardy and the villages towards the Black Mountains.
Postcode areas covered: NP7
Our methods
A survey in Abergavenny opens with diagnosis, not demolition: meter and pressure tests tell us which system is losing water and roughly how fast. From there, the building dictates the method — thermal imaging excels on Llanfoist's screeded new-builds and underfloor heating, while the town's thick-walled Victorian stock responds better to acoustic listening and tracer gas, which travel where cameras cannot see. A borescope inspection and moisture-meter mapping validate the result, so the repair happens once, in the right place.
A safe hydrogen-nitrogen mix escapes through the smallest defects — traced above ground to pinpoint the leak.
Non-toxicInfrared surveying reveals temperature anomalies behind floors, walls and ceilings.
Non-contactAmplifies the distinctive sound of pressurised water escaping from mains, copper and MDPE pipework.
UndergroundA flexible camera inspects wall cavities, floor voids and boxing-in through the smallest access point.
Minimal accessComparative readings across plaster, timber and concrete map water migration and confirm findings.
Evidence-gradePricing
Many leak detection companies charge £100+ per hour with no way of knowing the final bill. Our Trace & Find survey is a fixed £480 + VAT — however long it takes to find your leak.
A complete leak detection survey with the right equipment for your property.
no hourly rates · no hidden costs
Once located, repairs are quoted separately — every repair varies by leak type, pipework and access.
Priced individually to reflect the size, complexity and requirements of each project.
Answer a few quick questions and we will point you to the right fixed price.
Abergavenny FAQs
Answers specific to Abergavenny properties and how we work in the area.
Almost certainly — a sealed heating system that loses pressure is leaking somewhere, and in new estates the culprit is usually a joint or pipe within the floor screed. Thermal imaging and tracer gas find these quickly, and our report is also useful evidence if the developer or NHBC warranty becomes involved.
Most are finished within half a day on site. We are about an hour up the A465 from Neath, and we can usually offer a slot within one or two working days of your call to 01639 999 999.
In most cases, yes. Trace and access is the part of a buildings policy that pays for locating a hidden leak and reinstating afterwards, and the evidence pack we produce — thermal images, moisture readings, photographs — is designed to satisfy it.
Yes. Stone cottages along the canal corridor typically fail on their buried supply runs or old internal metal pipework, and both are ideal candidates for tracer gas and acoustic detection. The fixed £480 + VAT price applies throughout NP7.
We do — Saturday and Sunday appointments run from 9am to 2pm at no premium, alongside weekday hours of 9am to 5pm.
Book a non-invasive Trace & Find survey for a fixed £480 + VAT — we locate the source fast, with a full report for your records or insurer.
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