Slow flow, damp and returning roots are symptoms rather than diagnoses. These drain problems and defects pages show what the camera may find behind them, and why the condition of the pipe matters more than the symptom seen at ground level.
Each fault needs a different response. Roots must be cut back to reveal their entry point; loose cast-iron scale has to be removed without assuming the wall beneath is sound; a collapsed section needs direct access. The pages below explain what changes for each problem.
Match the symptom to the fault inside the pipe
Cracked drains
A crack may accept an internal patch or liner when the pipe around it is still sound.
Leaking drains
Footage from a known chamber can place the leaking joint or crack beneath a recognisable point above ground before anyone chooses the repair.
Displaced joints
Small joint movement may be repairable internally; larger displacement can need direct access.
Corroded cast iron
Loose scale must be removed before the remaining cast-iron wall can be assessed.
Deformed pitch fibre
Pitch-fibre pipe can be considered for relining only while a usable route remains.
Partial collapse
A short collapse may need digging out even when the pipe on either side can be retained.
Recurring blockages
A blockage that keeps returning needs clean CCTV at the same location, not another blind clearance.
Tell us about the problem
One contained opening can be patched; damage spread along a run points to a longer liner. Collapse or serious movement requires direct access. The camera footage is the basis for that distinction.
Describe the fault and its location
Describe what keeps happening and include any previous survey or clearing record.