How a camera survey works
A camera is introduced through a suitable access point, such as an inspection chamber. It is guided through accessible pipework while footage is viewed and recorded.
The survey scope depends on the available access, pipe layout, whether a blockage needs to be cleared first and the level of reporting required.
- Existing access points are assessed before the survey starts.
- Footage can show the accessible condition of the pipe interior.
- The findings can inform whether clearance, repair or further investigation is appropriate.
What a survey may identify
Camera footage can reveal visible blockages, root intrusion, open joints, deformation, cracks or other changes in the accessible drainage route. The inspection does not replace a wider building survey and cannot show parts of the system the camera cannot access.
- The location and nature of a visible restriction
- Pipe condition where the camera can travel
- Whether a repair option can be considered
- Information to discuss with a seller, insurer or contractor where applicable
When to arrange one
A survey can be useful when the same drain blocks repeatedly, a property purchase raises drainage questions, a repair is being planned or an unexplained smell or overflow persists. Ask what the survey includes, the reporting format and any limitations before authorising the work.
Frequently asked questions
Does a CCTV survey require excavation?
The survey itself is normally carried out through existing access points. If it identifies a defect, repair options are considered separately.
How long does a survey take?
Timing depends on the number and length of accessible drainage runs, access conditions and the scope of reporting. Confirm the expected scope with the provider.
Can a survey identify roots?
Where roots are visible inside an accessible pipe, the camera can record them and help determine whether clearance or repair should be considered.