Leak detection across Caerphilly: the towns we cover
Leak detection coverage includes every Caerphilly CF postcode listed with the villages below, and the other listed villages use NP postcodes.

Non-invasive leak detection
Acoustic, thermal and tracer gas
Trace and access claim reports
Which Caerphilly towns have their own leak detection page?
ADI Leak Detection Caerphilly has a page for each of these towns.
The team needs the particular building details. Describe any shared connection and the spaces affected by the reported loss.
Water leak detection in Caerphilly County Borough investigates concealed escapes at homes and business premises in the named smaller settlements. This county site provides village pages with checked postcode references, housing figures and local landmarks. Select the relevant locality and describe the symptoms at your particular building. Fleur-de-lis and Pengam share a page using their combined Census area.
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Water leak enquiries for Aberbargoed’s CF81 homes and premises, with local housing and Angel Lane employment-area context.
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Concealed water investigations in Nelson, Caerphilly, with CF46 locality evidence and its Taff Bargoed Valley setting.
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Water leak checks for Pen-pedair-heol’s CF82 properties, with a Census mix led by semi-detached and detached homes.
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Hidden water leak enquiries for Llanbradach’s CF83 homes, with a narrow valley settlement and mixed terraced, semi-detached and flat accommodation.
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Water investigations in New Tredegar, NP24, with predominantly terraced housing and a documented business-park setting.
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Water leak enquiries for Fleur-de-lis and Pengam in NP12, with joint Census housing figures and Britannia employment-area context.
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Water leak investigations in Maesycwmmer, CF82, with semi-detached housing and the historic viaduct as local context.
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Water leak enquiries for Machen’s CF83 properties beside the Rhymney River, with a mix of detached and semi-detached homes.
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Concealed water investigations for Trethomas, CF83, with terraced housing and the Rhymney River as local references.
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Water leak checks for Trinant’s NP11 homes, with semi-detached accommodation forming the largest Census housing category.
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Concealed water leak enquiries in Markham, NP12, with semi-detached and terraced housing west of the Sirhowy River.
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Water leak enquiries for Gelligaer’s CF82 settlement, with a substantial flat share and Roman-fort landmark context.
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Water investigations for Cwmfelinfach’s NP11 properties, with terraced housing and the Nine Mile Point employment-area reference.
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Water leak enquiries for Fochriw, CF81, at the head of the Darran Valley with a predominantly semi-detached housing mix.
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Water leak investigations for Ynysddu, NP11, with predominantly terraced homes in the Sirhowy valley.
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Water leak enquiries in Deri, CF81, with terraced homes and nearby Parc Cwm Darran as local context.
Who fixes a leak on your supply pipe in Caerphilly?
Responsibility for a supply pipe changes at the property boundary. Which water company serves your property depends on your town, and each town page names it, its leak line and its published guidance.
Is leak detection available between the Caerphilly towns?
For a Caerphilly County Borough property outside the named smaller-place pages, give the office its locality and water symptoms so the appropriate page and access can be checked. Registered towns retain dedicated town websites. Postal districts are locality references and do not allocate every address within their boundaries. Contact the team about your postcode
- CF81
- CF46
- CF82
- CF83
- NP24
- NP12
- NP11
Is leak detection available at your postcode?
Give us your postcode and a technical advisor will confirm the engineer who covers it.
Same or next day depending upon engineer availability.
