A drain camera inspection — also called a CCTV drain survey — is the only reliable way to see what is actually happening inside a drain. A waterproof camera is fed through the pipe on a flexible rod or crawler unit and sends live footage back to a screen above ground, so a blockage, crack or root intrusion can be identified and located precisely instead of guessed at. In practice it turns a drainage problem from a matter of opinion into something you can watch on a monitor.
What a drain camera inspection shows you
The camera travels the drain run and records its condition along the way. A competent operator will note not just the fault but its position and depth, so any repair can be targeted rather than exploratory. Typical findings include:
- Collapsed or deformed sections of pipe
- Tree roots entering through joints and cracks
- Hardened fat, grease and scale build-up narrowing the bore
- Cracks, fractures and the source of leaks
- Displaced joints, poor falls and substandard original installation
- Corrosion and general deterioration in older pipework
- Rodent or animal ingress
Knowing which of these you are dealing with decides the repair. Root intrusion through sound joints, a grease blockage and a collapsed pipe all present the same way at the basin — a slow or backing-up drain — but each needs a completely different response.
When you should book one
Before buying a property
Drainage is not covered by a standard home inspection, and it sits underground where no walk-through will reveal it. A pre-purchase drain camera inspection tells you whether you are about to inherit a collapsed sewer line before the transfer goes through rather than after.
When a blockage keeps coming back
A drain that blocks repeatedly in the same place is telling you something structural is wrong. Clearing it again treats the symptom. If you have had the same blocked drain cleared more than twice, an inspection is cheaper than the third call-out.
Before and after drainage work
An inspection establishes whether a repair such as pipe relining is viable, and a second run afterwards confirms the work was completed correctly. It is also worth doing where drains cross a boundary and responsibility for a fault is disputed.
When you smell something you cannot find
Persistent drain odours with no obvious source often trace back to a cracked pipe or a failed joint venting below ground. A camera finds it without lifting paving on a hunch.
Inspection or survey — is there a difference?
The terms are used more or less interchangeably in South Africa, and “CCTV drain survey” is the phrasing you will more often see used by British firms. In practice the useful distinction is what you receive at the end. A quick inspection diagnoses an immediate problem and may be verbal. A full survey is a documented exercise: recorded footage, the location and depth of each defect, and a written report you can hand to a conveyancer, an insurer, a body corporate or a contractor.
If the inspection is being used to support a purchase decision, an insurance claim or a dispute, ask for the documented version and confirm before booking that footage will be supplied. If you simply want to know why the kitchen drain keeps blocking, the shorter diagnostic is usually sufficient.
What happens after the inspection
The footage determines the repair. Grease and scale build-up is normally resolved with high-pressure jetting. Roots are cut out and the entry point sealed, commonly by relining the affected section. Cracked or leaking pipes that remain structurally sound are usually relined; a genuinely collapsed run has to be excavated and replaced.
Where a fault affects a municipal sewer rather than your private connection, responsibility may sit with the local authority — the City of Cape Town’s sewerage services pages set out where that line is drawn. An inspection that establishes exactly where the defect lies is often what settles the question.
Book a drain camera inspection in Cape Town
Drain Blasters carries out drain camera inspections and CCTV drain surveys across Cape Town and the Western Cape, for homeowners, buyers, managing agents and commercial premises. You get to see the footage yourself and a straight answer on what the pipe needs. See our drain clearing services, or call 021 439 4086 to arrange an inspection.
