Monmouth's Georgian streets deserve better than exploratory holes. We locate hidden water leaks with tracer gas, acoustic and thermal technology first — one fixed fee of £480 + VAT, confirmed before we set out.
Monmouth marks the eastern edge of our Welsh coverage, where the Wye and the Monnow meet and the housing runs from medieval fabric to modern estates within a few hundred yards. We support homeowners, holiday-let operators and property managers throughout NP25 with precise, non-destructive leak location.
Given the distance from our Neath base, we organise Monmouth work onto planned route days rather than promising same-day arrival — but once booked, you get the identical service and the identical £480 + VAT fixed fee as an address five minutes from our door. Most bookings are surveyed within the week.
The deliverable is the same too: a thorough written report with thermal images, moisture profiles and photographs that slots straight into a trace and access claim with your insurer.
Local knowledge
Monnow Street and the lanes off it hold some of the finest Georgian and earlier townhouses in Wales, a large number of them listed. Buildings of that age carry plumbing archaeology — abandoned lead runs, Victorian cast iron, mid-century copper and modern plastic all coexisting behind lath, panelling and thick rubble walls. When water escapes, it tracks along timbers and ledges and appears somewhere entirely unrelated to the fault, which is why guess-and-cut investigation fails so often here.
Around the historic core, Overmonnow spreads across the river with Victorian and Edwardian terraces, Osbaston climbs the hill to the north with interwar and later family homes, and Wyesham sits across the Wye with post-war stock and newer infill. Proximity to two rivers adds a complication we see regularly: genuine flood or groundwater damp gets confused with plumbing leaks, and vice versa. Distinguishing the two — with moisture profiling and pressure testing rather than opinion — is often the survey's first job.
WHAT WE FIND IN MONMOUTH
Coverage
We cover Monmouth itself and the villages of the lower Wye Valley and surrounding Monmouthshire countryside — down the river towards Redbrook, Penallt and Llandogo, west to Rockfield and the Trellech plateau. All NP25 addresses carry the same fixed price.
Postcode areas covered: NP25
Our methods
In a town with this much protected fabric, the order of operations matters: evidence first, equipment second, and no opening-up at all during detection. Pressure testing splits the system into supply, heating and waste so we hunt in the right third; acoustic sensors and tracer gas then narrow the fault to a point, while thermal imaging traces warm pipe runs invisibly through floors and walls. Everything is confirmed with a borescope and moisture meters before we mark the spot for repair.
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.
Monmouth FAQs
Answers specific to Monmouth properties and how we work in the area.
We plan Wye Valley visits onto route days from our Neath base, so rather than same-day attendance we agree a confirmed date — usually within the working week. If your leak is active, we will talk you through isolating the supply on the phone in the meantime: 01639 999 999.
Nine times out of ten the water is escaping from a buried section of the heating circuit, often under a solid floor. Thermal imaging usually reveals the anomaly within the hour, and tracer gas confirms the exact point before any floor covering is disturbed.
It is the correct approach for one. Nothing in our survey disturbs historic fabric — no lifting, cutting or drilling is needed to locate the leak — so there are no consent issues, and any subsequent repair opening is minimal and precisely targeted.
Yes. The report documents the leak's location with thermal evidence, moisture readings and photographs, which is exactly what trace and access claims handlers ask to see. Most buildings policies carry this cover.
You often cannot tell by eye — but instruments can. Meter testing proves whether water is being lost from the system at all, and moisture profiling distinguishes plumbing escapes from ground or flood moisture. If it turns out not to be a leak, the report says so, which is equally valuable for your insurer.
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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