Leak detection across Flintshire in Wales
Leak detection across Flintshire detects concealed water leaks in homes and other occupied buildings across the county. ADI Leak Detection Wales arranges visits across Wales through head office. Flintshire 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 Flintshire in Wales?
The Wales guide brings together council-area housing figures and village-level context. Give the settlement, the individual premises and the part of the water system affected so that a county name does not substitute for a usable location.
Flintshire's 2021 census accommodation table counts 27,073 households in semi-detached homes, compared with 25,985 in detached homes and 9,019 in terraces. Semi-detached housing is therefore a substantial part of this county picture. Describe any extension or division of the property as it stands now, together with the rooms affected by water loss.
Penyffordd's documented buildings include Trinity Chapel, while Caerwys has a designated conservation area at its centre. A water investigation in an adapted or historic building needs a clear account of occupied rooms, existing access points and any limits on entry. Those practical details should accompany the symptoms reported.
Which places in Flintshire does this guide to Wales describe?
This guide to Wales describes the places and landscape of Flintshire.
- Flintshire CH7
Local landmarks and terrain
- River Alyn
- Trinity Chapel
Who handles supply-pipe leaks across Flintshire in Wales?
Who looks after the supply pipe into the home?
The service pipe from the stop tap into the house normally belongs to the property owner or landlord, who must maintain it, including any section under another property.
Who looks after a shared supply pipe?
Property owners sharing a service pipe are normally jointly responsible for maintaining it.
Source: Hafren Dyfrdwy guidance, checked 4 November 2026.
Report a leak on Hafren Dyfrdwy's side of the boundary to Hafren Dyfrdwy on 0800 085 8033 (emergencies, 24 hours) or online at hdcymru.co.uk. Leaks inside the property and on its own supply pipe are the work we do.
Dŵr Cymru Welsh Water is the sewerage company for Flintshire. 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 Flintshire in Wales?
How specific should a Flintshire location be?
Give the settlement and postal district, then explain access to the affected premises. CH7 is the reference used for this county entry, while Hope provides a separate River Alyn setting. A village name or conservation-area label cannot identify which part of a building needs attention.
Does a Flintshire supply enquiry always involve the same company?
Dŵr Cymru and Hafren Dyfrdwy both appear in the county's mapped water areas, alongside smaller appointments. The sewerage map has a different pattern and is predominantly Dŵr Cymru. Use the premises' own service information to establish the relevant operator for each system.
How do you book a visit across Flintshire in Wales?
Send your postcode and a technical advisor calls back to arrange the visit with an engineer who covers Flintshire.
Same or next day depending upon engineer availability.
