CCTV Drain Inspection: When You Need It and What to Expect
How a drain camera pinpoints blockages, root intrusion and pipe collapses metres underground — and when to book one instead of an excavation.
When something goes wrong underground in your drainage system, the traditional approach was to guess, dig, and hope. A drain camera — or CCTV inspection — changes that completely. In the space of an hour or two, a specialist can visually inspect dozens of metres of buried pipework, see exactly what's inside, and tell you precisely what's wrong and where.
This guide explains what a CCTV drain inspection involves, the most common situations where you need one, and what to expect when you book one with Source Leak Detection in Pretoria or Centurion.
What Is a CCTV Drain Inspection?
A CCTV drain inspection uses a waterproof camera mounted on a flexible cable or crawler to travel through your drainage pipes, recording a live video feed as it goes. The operator watches the footage in real time on a monitor above ground and can identify:
- Blockages — grease, debris, roots, or collapsed sections
- Cracks and fractures — in the pipe wall
- Root intrusion — tree roots entering through joints or cracks
- Displaced or misaligned joints — sections that have shifted due to ground movement
- Collapsed pipe sections
- Ingress — groundwater or debris entering the drain through a defect
- Scale and corrosion — build-up inside older iron or clay pipes
The inspection produces a recorded video that you can share with your insurance company, your plumber, or your body corporate. Source Leak Detection provides written reports with the camera footage reference — exactly what insurers and contractors need to plan the repair.
When Do You Need a CCTV Drain Inspection?
Persistent or Recurring Blocked Drains
If you've had the same drain cleared multiple times and it keeps blocking, there's usually an underlying structural cause — root intrusion, a collapsed section, or a displaced joint creating a trap where debris accumulates. Clearing the blockage without inspecting the pipe is treating the symptom, not the cause.
A CCTV inspection identifies the root cause so the right repair can be made once, properly.
Before Buying a Property
Underground drainage is invisible during a standard property inspection, and drainage problems are expensive. A pre-purchase CCTV inspection gives you:
- Confirmation that the drainage system is in good condition
- Negotiating leverage if problems are found
- Peace of mind that you're not inheriting a hidden problem
This is standard practice in the UK and increasingly common among property buyers in Pretoria. It's a small investment relative to the cost of discovering a collapsed drain after transfer.
Slow or Sluggish Drains Throughout the House
When multiple drains in the house are slow simultaneously, the problem is usually in the main drain line — the section that connects your house drainage to the municipal sewer. This is underground and not accessible without investigation.
Sewage Odour with No Obvious Cause
A persistent sewage smell coming from inside the house or from a specific area of the garden can indicate a cracked or broken drain allowing gas to escape.
Water Pooling in the Garden
An unexplained wet patch in the garden, particularly one that doesn't dry out after rain, could indicate a broken drain line bleeding water into the soil. This looks similar to a supply pipe leak but behaves differently.
As Part of an Insurance Claim
If you're making an insurance claim related to water damage and drainage is implicated, your insurer may require a CCTV inspection report to establish the cause and extent of the problem.
For Body Corporates and Estates Investigating Shared Drainage
In sectional title developments, tracing which unit is responsible for a drainage problem — and establishing the exact location of a fault in shared versus private drainage — requires visual evidence. A CCTV inspection provides that evidence without guesswork.
Related: Leak Detection for Body Corporates and Estates in Pretoria
What Happens During a CCTV Drain Inspection?
Before We Arrive
You don't need to do much preparation. It helps if you can tell us which drain you're concerned about and what symptoms you've noticed. We'll assess on arrival whether a pre-inspection flush or clean is needed before the camera goes in.
On the Day
- Initial assessment — we discuss the symptoms and identify the drain access points (manholes, rodding eyes, or through an inspection chamber)
- Camera deployment — we feed the camera into the drain access point and begin moving it through the pipe
- Live inspection — you can watch the feed on our monitor if you'd like to. We note any defects, their location, and their severity
- Full inspection of relevant sections — we typically inspect from one manhole to the next, or from the outlet back to the property
- Written report — we produce a report identifying each defect, its location along the drain run, and our recommendation
How Long Does It Take?
Most residential CCTV drain inspections take 1–3 hours depending on the length of drain being inspected and how many access points are involved.
What CCTV Can and Can't Do
What it can do:
- Show you exactly what's inside the pipe
- Locate defects to within centimetres
- Provide video evidence for insurance or legal purposes
- Identify the cause of recurring problems
- Show root intrusion and its extent
What it can't do:
- Access pipes smaller than 75mm (camera diameter limitations)
- Operate in a fully blocked or collapsed drain without clearing first
- Replace pressure testing for supply pipe leak detection (CCTV is for drainage only)
- Always access every section of pipe if there are no inspection points
Common Drainage Problems Found in Pretoria Properties
Root intrusion is extremely common in older Pretoria properties. Jacaranda, oak, and plane trees — which line many Pretoria East and Brooklyn streets — have aggressive root systems that find their way into clay and cast iron drain pipes at joints.
Displaced joints are common on older clay pipe systems where ground movement — typical in Gauteng's clay-rich soils — has shifted sections apart over time.
Grease build-up (fatbergs) in kitchen drain lines, particularly in older properties without in-line grease traps.
Collapsed clay pipe — older vitrified clay drainage systems (pre-1980s) are reaching end of life in many Pretoria suburbs.
CCTV Drain Inspection and Leak Detection: The Connection
Drainage problems and water leaks are often linked, and we're frequently asked to investigate both during the same visit. A cracked drain pipe allows groundwater to enter — which can look exactly like a supply pipe leak from above. Conversely, a leaking supply pipe saturates the soil and can accelerate drain joint displacement.
Our leak detection services and CCTV drain inspection are often used together to build a complete picture of what's happening underground.
How Much Does CCTV Drain Inspection Cost in Pretoria?
CCTV drain inspections in Pretoria typically cost between R800 and R2,500 for a standard residential inspection, depending on the length of drain being inspected and the number of access points.
A full written report with video reference is included.
For the full breakdown of what leak and drain inspection services cost, see: how much does leak detection cost in South Africa?
Frequently Asked Questions
Q: Do I need to clean my drain before the inspection? A: For a visual inspection, some debris is fine. If the drain is completely blocked, we may need to clear it first so the camera can pass. We'll advise when we assess.
Q: Can you inspect both sides of a manhole? A: Yes. From a single inspection chamber, we can usually inspect both the upstream and downstream sections.
Q: Can I get a copy of the video? A: Yes. We can provide the video recording along with our written report.
Q: What if you find root intrusion? A: We'll tell you the extent and location. Repair options range from chemical root treatment to mechanical cutting (hydro-jetting) to open repair or pipe relining — depending on severity.
Q: My drain smells but isn't blocked. Should I get a CCTV inspection? A: Yes. A smell with no blockage usually means a crack or displaced joint allowing gas to escape — exactly the kind of defect a camera inspection reveals.
Q: Do you cover Centurion and Pretoria East? A: Yes. We cover all of Pretoria, Centurion, and surrounding areas. Same-day service available. Contact us to book.
Book a CCTV Drain Inspection in Pretoria
Source Leak Detection provides professional CCTV drain inspections across Pretoria, Centurion, Pretoria East, and Gauteng. We produce detailed written reports, carry industry-standard camera equipment, and are NSPI-registered · IPA-registered.
📞 Call us today or request a quote online.
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