Cardiff leak detection: the areas we cover
Leak detection coverage includes every Cardiff CF postcode listed with the districts below.

Non-invasive leak detection
Acoustic, thermal and tracer gas
Trace and access claim reports
Which Cardiff districts are covered for leak detection?
Leak detection covers Cardiff. The office team arranges visits and reports.
ADI Leak Detection Cardiff investigates hidden water escapes in homes and business premises in these areas, from the centre and Cardiff Bay to Roath, Rhiwbina and St Mellons. Give your property address and describe the symptoms when arranging the investigation.
Rumney, Trowbridge, Llanrumney and St Mellons are in the eastern CF3 districts. For a leak at St Mellons Business Park, tell us which unit is affected and who can provide access to the pipework.
- Rumney CF3
- Trowbridge CF3
- Llanrumney CF3
- St Mellons CF3
- Splott CF24
- Adamsdown CF24
Canton’s addresses span CF5 and CF11, while Ely, Caerau, St Fagans, Fairwater, Danescourt and Llandaff appear in CF5. Describe your property’s symptoms and give the entrance details when arranging the investigation.
- Ely CF5
- Caerau CF5
- St Fagans CF5
- Canton CF5
- Fairwater CF5
- Danescourt CF5
- Llandaff CF5
The centre and Cardiff Bay include addresses in CF10 and CF11. For a flat or shared building, access to the room above or below the damp may help trace where the water began.
- Butetown CF10
- Cardiff Bay CF10
- Canton CF11
- Grangetown CF11
- Cardiff Bay CF11
Rhiwbina Garden Village’s historic houses sit among the northern Cardiff districts of Whitchurch, Heath and Llanishen. Tell us about floors or finishes that need protecting before an opening is considered.
- Whitchurch CF14
- Rhiwbina CF14
- Heath CF14
- Llanishen CF14
- Radyr CF15
- Morganstown CF15
- Tongwynlais CF15
Roath Park has late Victorian and Edwardian terraces, with steep pitched slate roofs, chimneys and gables. Explain whether damp follows rainfall or plumbing use so the investigation can focus on the likely source.
- Cyncoed CF23
- Pentwyn CF23
- Penylan CF23
- Pontprennau CF23
- Cathays CF24
- Roath CF24
- Plasnewydd CF24
Which Cardiff postcodes are covered for leak detection?
Every Cardiff postcode district below is covered.
- CF3
- CF5
- CF10
- CF11
- CF14
- CF15
- CF23
- CF24
Where is leak detection available beyond Cardiff?
From Llandaff and St Fagans to Rumney and St Mellons, tell us where the damp appears or how the water use has changed.
Should you call ADI Leak Detection Cardiff or Dŵr Cymru Welsh Water?
Leaks on public land, and on Dŵr Cymru Welsh Water’s side of the boundary stop tap, belong to Dŵr Cymru Welsh Water and should be reported to them.
- Report a leak to Dŵr Cymru Welsh Water on 0800 052 0130, 24hrs a day, 7 days a week, or online at dwrcymru.com.
- Leaks inside the property, and on your own supply pipe between the boundary and the house, are the owner’s responsibility, and that is the work we do.
- The report always says which side of the boundary the leak sits on, whoever books the visit.
Who books ADI Leak Detection Cardiff?
Property owners, landlords and commercial premises book leak detection in every area covered.
| Customer | Typical need | Fit |
|---|---|---|
| Property owners | A Dŵr Cymru Welsh Water bill that has jumped, central heating losing pressure, a damp patch or a ceiling stain with no visible source | Cardiff houses, flats and apartments in the named districts |
| Landlords and letting agents | Locate a leak without ripping out floors or walls in an occupied property, using hot and cold pipe leak detection. See how it works for property professionals | Rented homes and shared buildings, with access arranged through the resident or managing agent |
| Commercial and industrial premises | Cardiff commercial premises, including the St Mellons, Cardiff Gate and Wentloog Road employment areas | Any building type |
| Facility and property managers | One contractor for every property in a Cardiff property portfolio, with a written report for each | Multi-site portfolios |
| Insurers and loss adjusters | A trace and access report with photo and video evidence, written for escape of water claims | Domestic and commercial policies |
This service investigates leaks; general plumbing, heating installation and roof or structural repairs are outside its scope.
Is leak detection available at your postcode?
Leak detection services are available across England, Scotland and Wales. Give us your postcode and a technical advisor will confirm the first available engineer slot.
Same or next day depending upon engineer availability.
