Drainage leak detection and CCTV surveys in Rowlands Gill
Drainage leak investigation identifies drain defects using a CCTV drain survey and acoustic listening.

Non-invasive leak detection
Acoustic, thermal and tracer gas
Trace and access claim reports
What are the signs of a drainage fault?
A drain smell, slow or gurgling toilets and gullies, or sinking ground near a chamber can indicate a fault. ADI Leak Detection Rowlands Gill locates the cracked, collapsed or root damaged section and reports its position.
A drain fault is out of sight underground, so these signs are usually the first warning:
- A drain smell in the garden or in a downstairs room
- Gullies and toilets that empty slowly or gurgle
- Repeated blockages in the same run of pipe
- Ground sinking near an inspection chamber or a soil pipe
- Rats, which follow broken drains
Where do drainage faults occur in Rowlands Gill?
The team investigates suspected leaks from private drains.
- The conservation-area record describes wooded denes, mature trees and houses in substantial plots, making a known drainage plan useful for defining access. Explain the observed problem and any connection with particular outlets or rainfall.
- If a previous inspection identified a chamber or branch requiring further checks, provide its findings and describe what happened afterwards. State whether the line serves only the property or whether responsibility needs confirming because another premises is involved.
- The presence of trees alone does not establish a drain defect, so keep the enquiry focused on what has been observed. Access across garden areas or through occupied spaces should be discussed before the visit.
- The advisor can then consider the affected section and the practical arrangements for investigation.
How does ADI Leak Detection Rowlands Gill find a drainage fault?
The engineer opens the inspection chambers, runs a CCTV camera along the drain and locates the defect with the camera's sonde. Once the position is found, the engineer explains it on site before any repair is discussed.
The inspection chambers reveal the drain layout when their covers are lifted, before the camera survey starts.
A CCTV drain camera records the condition of every joint, bend and connection as it travels through the pipe.
The camera sonde, tracked from the surface, gives the position and depth of the drain defect on the ground above.
Acoustic listening and water testing confirm whether a defect is actually losing water.
The drain condition report includes the survey video, still images and a plan of the pipe run.
What happens after a drainage fault is found?
The drain defect is located, marked and reported with the CCTV footage. Drain repairs and lining are carried out by a drainage contractor, working from the survey.
Every leak detection visit ends with a written report by the engineer who attended, with photographs and video, formatted for trace and access and escape of water insurance claims.
- The leak position marked on site and explained before you decide anything
- Photographs and video in the written report
How do you arrange drainage leak investigation in Rowlands Gill?
Send the form with your postcode and a technical advisor will call you back, confirm the service and book the visit.
If you are unsure which investigation you need, describe what you can see when you call and the advisor will tell you.
Same or next day depending upon engineer availability.
What do people ask about drainage leak investigation?
Before a drainage investigation people ask how long it takes, how it differs from a CCTV survey, what happens with a shared drain and whether drains get unblocked.
How long does a drainage leak investigation visit take?
It depends on the property and how much of the system has to be tested, so the advisor gives you an estimate when you book.
Is a CCTV drain survey the same as leak detection?
A CCTV drain survey is the drainage form of leak detection. The camera shows the pipe condition and the sonde locates the defect, giving your repair contractor the information needed to plan the work.
Who is responsible for a shared drain?
Northumbrian Water maintains public sewers and most shared sewers. Owners maintain drains serving only their property within its boundary. Shared drains serving flats within a single boundary, private treatment systems and drainage that does not connect to a public sewer can remain private. Drainage for properties built after 2011 generally remains with the owner or developer; check responsibility with Northumbrian Water.
Does ADI Leak Detection unblock drains?
Clearing enough of a blockage to get the camera through is part of the survey. Full drain clearance, repair and lining is a drainage contractor’s work.
