TL;DR A CCTV drain survey uses a waterproof camera on a flexible rod (or a crawler unit for larger runs) to record the inside of your drain, so a defect — a crack, root ingress, a misaligned joint, a collapse — can be seen and located precisely rather than guessed at. Cost isn't a single fixed figure: it depends on the length of run, how many access points there are, and whether you need a written report for a house purchase or a lateral drain investigation. Most residential surveys in Cardiff's Victorian and Edwardian terraces are completed in a single visit. Request a fixed-price quote online and we'll confirm the cost against your actual drain before booking.
What a CCTV Drain Survey Is A CCTV drain survey is a visual inspection of the inside of a drain or sewer pipe using a push-rod camera for most domestic runs, or a self-propelled crawler unit for longer or larger commercial runs. The footage is recorded and reviewed against a defect-classification standard, so what you get isn't just a video — it's a graded, documented assessment of the pipe's actual condition.
Defects are typically classified against the WRc's MSCC5 (Manual of Sewer Condition Classification) system, the UK drainage industry's standard framework for scoring both structural defects (cracks, fractures, deformation, root ingress) and service defects (silting, scale, obstruction). This is the same classification language used by water authorities, so a report produced this way is recognised by surveyors, conveyancers and, where relevant, Dŵr Cymru Welsh Water.
When You'd Need One in Cardiff - **Buying or selling an older property.** Much of Cardiff's housing — Victorian and Edwardian terraces in Roath, Cathays, Canton, Grangetown and Splott — has original clay drainage that's a century old. A pre-purchase drain survey checks its actual condition before you commit, the same way a structural survey checks the building. - **A recurring or unexplained problem.** If a drain keeps blocking in the same place, smells persistently, or the garden has a damp or sunken patch above the pipe run, a drainage investigation survey identifies the cause rather than treating the symptom again. - **Extending or building over a drain.** Building regulations set out "build-over" rules for any extension, conservatory or outbuilding proposed near or over an existing drain run — a survey confirms the drain's exact route and condition before Dŵr Cymru or building control will sign off the work.
How the Survey Works, Step by Step 1. **Access.** We locate the nearest manhole, inspection chamber or rodding eye — in a lot of Cardiff terraces this is in the front garden or under a manhole cover in the pavement. 2. **The camera pass.** The camera is fed through the drain, recording continuously and transmitting a live picture so the operator can see what the pipe looks like in real time. 3. **Distance and location logging.** The equipment tracks how far the camera has travelled, so any defect found is recorded against a precise distance from the access point — essential if a repair is needed later. 4. **Report and grading.** Findings are written up against the MSCC5 classification, so you get a clear, graded account of what's wrong (if anything) rather than a raw video file to interpret yourself.
What the Report Actually Shows A good CCTV survey report will typically flag: - Structural defects — cracked, fractured or displaced pipe sections, common in old clay drainage that's shifted slightly over decades - Root ingress — roots entering through an open joint, a frequent finding on tree-lined streets like Llandaff and Whitchurch - Misconnections — where a rainwater or waste pipe has been connected into the wrong system, sometimes found during pre-purchase surveys on older conversions - Service defects — silt, scale or debris build-up narrowing the pipe without a structural cause
What Drives the Cost — the Real Factors We don't quote a flat "CCTV survey cost" because the job genuinely varies. What actually affects the price: - **Length of the drain run** being surveyed, and how many separate runs the property has - **Number and accessibility of manholes or inspection chambers** — some Cardiff terraces have straightforward front-garden access, others need work to locate or open a buried chamber - **Whether a written report is required** for a house purchase, mortgage lender or building control, versus a same-visit verbal assessment - **Whether the drain needs jetting first** to clear silt or debris before the camera can pass through cleanly
Request a fixed-price quote online with a few details about the property and we'll confirm the cost before booking — no guesswork, no surprises on the day.
FAQ
**What does a CCTV drain survey cost?** It depends on the length and number of drain runs, how accessible the manholes are, and whether a formal written report is needed. We provide a fixed price once we know the specifics of your property — never a generic figure.
**How long does a CCTV drain survey take?** Most single-property residential surveys in Cardiff are completed in one visit, though the exact time depends on how many runs need inspecting and how easy access is.
**Do I need a CCTV survey to buy a house in Cardiff?** It's not a legal requirement, but given how much of Cardiff's housing has original Victorian or Edwardian clay drainage, a pre-purchase survey is a sensible way to check for defects that a standard building survey won't cover.
**Will the survey damage my drain?** No — the camera equipment is designed to pass through the pipe without contact damage. If silt or debris is blocking the view, jetting to clear it first is a separate, gentler process.
**Can I use the report to make Dŵr Cymru Welsh Water fix a problem?** If the survey shows the defect sits in the public sewer or a shared lateral drain rather than your private drain, the report is exactly the evidence needed to raise it with Dŵr Cymru Welsh Water.
