Leak detection across Isle of Anglesey in Wales
Leak detection across Isle of Anglesey locates concealed water leaks in properties across the island county. ADI Leak Detection Wales arranges visits across Wales through head office. Isle of Anglesey has a separate ADI Leak Detection county website for enquiries within the county.
Non-invasive leak detection
Acoustic, thermal and tracer gas
Trace and access claim reports
Which leak investigations cover Isle of Anglesey in Wales?
Within this Wales guide, the island's smaller settlements provide context alongside its town entries. Give the village or town, the property's own postcode and the affected water system when describing a possible leak.
The island's council-area Census 2021 table records 14,623 households in detached accommodation and 6,827 in terraces. Amlwch supplies a specific historic example: its central conservation appraisal discusses terraces on Mona Street. These different scales of evidence help describe the area; the building's present layout must come from the enquiry.
Copper extraction at Parys Mountain helped Amlwch and its harbour expand during the eighteenth century. For a water-supply investigation in an older setting, describe any known extension, altered entrance or outside connection. The settlement's industrial history does not establish the route or material of a domestic pipe.
Which places in Isle of Anglesey does this guide to Wales describe?
This guide to Wales describes the places and landscape of Isle of Anglesey.
- Isle of Anglesey LL77
Local landmarks and terrain
- Parys Mountain
- Menai Strait
Who handles supply-pipe leaks across Isle of Anglesey in Wales?
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 Isle of Anglesey. 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 visits across Isle of Anglesey in Wales?
How does the island entry help locate a property?
Use the settlement name with the postal location, especially where a route follows the coast or a smaller village road. LL77 is this entry's reference district, not a postcode for the entire island. At Menai Bridge, the Menai Strait and the Afon Cadnant provide distinct geographical context.
Does the county name settle which water services a property has?
Dŵr Cymru Welsh Water predominates in the separate mapped water and sewerage areas for Anglesey. Establish both services for the actual premises and say whether a private arrangement is involved. An island-wide map cannot identify the connection serving one building.
How do you book a visit across Isle of Anglesey in Wales?
Send your postcode and a technical advisor calls back to arrange the visit with an engineer who covers Isle of Anglesey.
Same or next day depending upon engineer availability.
