Leak detection near Holyhead in Isle of Anglesey
Leak detection near Holyhead traces concealed water leaks in homes and premises on Holy Island. ADI Leak Detection Isle of Anglesey arranges visits across the county through head office. Holyhead has a separate ADI Leak Detection town website for enquiries within the town.
Non-invasive leak detection
Acoustic, thermal and tracer gas
Trace and access claim reports
Which leak investigations cover the Holyhead area of Isle of Anglesey?
Holyhead lies on Holy Island, across the Cymyran Strait from Anglesey. Its historic centre includes Market Hall and Stanley Street. When arranging an investigation through the county service, identify the affected building and floor, then explain where water is appearing and which parts of the plumbing can be reached.
Terraces account for 43.1% of Holyhead’s Census 2021 accommodation table for the built-up area. The central conservation appraisal also records slate roofs and houses adapted for shops. For an enquiry involving an altered building, describe its present uses floor by floor, including any room above the affected space.
A Holyhead enquiry about concealed kitchen or bathroom pipes benefits from a sketch of the rooms involved. Note where fittings have been moved and whether the wet area lies beside, beneath or beyond them. In the historic centre, a building’s former residential use may differ from its current arrangement, so explain the layout that can be inspected today.
Which places around Holyhead are in this county guide?
This county guide describes the places and landscape around Holyhead.
- Holyhead LL65
Local landmarks and terrain
- Market Hall
- Caer Gybi Roman Fort
Who handles supply-pipe leaks around Holyhead in Isle of Anglesey?
Who owns the private supply pipe?
The property owner owns the private supply pipe between the street boundary and the internal stop tap.
What happens if a private supply pipe serves several properties?
Welsh Water says it will discuss repair options when it finds that a private supply pipe is shared.
Source: Dŵr Cymru Welsh Water guidance, checked 4 November 2026.
Report a leak on Dŵr Cymru Welsh Water's side of the boundary to Dŵr Cymru Welsh Water on 0800 052 0130, 24 hours a day, 7 days a week, or online at dwrcymru.com. Leaks inside the property and on its own supply pipe are the work we do.
Dŵr Cymru Welsh Water is the sewerage company for Holyhead. Pipes serving more than one property, or serving a single property outside its boundary, are probably Welsh Water’s responsibility. Pipes serving only your property within its boundary are your responsibility.
Source: Dŵr Cymru Welsh Water guidance, checked 4 November 2026.
What should you know about county visits near Holyhead?
What location details help with a Holyhead booking?
Start with Holyhead and LL65, then describe the entrance and the part of the building affected. Market Hall or another nearby landmark can help explain the setting, but the enquiry needs the premises where the symptoms occur.
What does Holyhead’s terrace figure tell me about my leak?
The 43.1% figure describes the town’s accommodation mix in 2021. It gives context for this Anglesey guide; the source of water at your home still needs evidence from its own fittings, rooms and accessible pipework.
How do you book a county visit near Holyhead?
Send your postcode and a technical advisor calls back to arrange the visit with an engineer who covers Holyhead.
Same or next day depending upon engineer availability.
