The cost of a CCTV drain survey in London depends on the type of survey you need. It is not only about pipe length, because the purpose matters too. A basic check before you call an engineer costs far less than a full pre-purchase report with written findings and graded defects.
This guide walks through each survey type and what it includes. Since choices differ, it also shows which choices move the price up or down. For pricing by survey type, see the dedicated CCTV drain survey cost page.
The Four Types of CCTV Drain Survey in London
Basic drain check
This is a single camera run to find an obvious blockage, confirm a drain is clear after jetting, or check a known problem. The engineer records footage and gives a verbal report. There is no written report and no defect coding. It suits simple blockage checks, since you only need eyes in the pipe.
Pre-purchase residential survey
This is the most common survey in London. The camera runs through the whole accessible drain system, usually the kitchen drain, the bathroom drain and the combined lateral. You get footage and a written report. Defects are coded to a recognised method, so lenders, solicitors and insurers can read the report. However, before you book, check the firm on Companies House to confirm its trading history. This is the survey to book before you exchange on any London home, especially an older one. See our CCTV drain survey cost page for pricing guidance.
Full drainage mapping survey
You need this when the drain layout is unknown or complex, which is common in converted Victorian houses and commercial buildings. The engineer maps every run, finds the connections and locates the manholes. The survey also confirms where private pipes end and Thames Water pipes begin. Building control, insurers and lenders may ask for the resulting plan when a standard survey is not enough.
Insurance or structural investigation
These surveys support an insurance claim, often after subsidence or flooding. They need a detailed written report, measurements and photos at set points. Some also need a second engineer to sign off. If your insurer has asked for a survey, confirm the exact format first, because firms do not all report to the same standard.
What Is Included in a CCTV Drain Survey
A basic check usually includes the visit, the kit, a review of the footage and a verbal report, while a pre-purchase or structural survey adds more. You get recorded footage, a written coded report and time-stamped photos of defects. You may also get a drainage sketch and a follow-up call to explain the findings.
Always ask how the report is delivered, and whether you get the footage. Since needs differ, if you are buying, your solicitor will want the written report. If you are making a claim, your insurer will set the format.
Factors That Affect the Price in London
Number of drain runs. A terrace with one combined run is simple, while a semi with separate foul and surface water drains, a back addition and a shared lateral adds time.
Access. Drains with no chamber need entry from a gully, toilet or rodding eye. Because access is tight, the survey takes longer and may miss part of the run.
Report complexity. A verbal debrief takes minutes. Yet a full coded report with photos, a plan and advice takes hours, so it costs more.
Inner London costs. Because of congestion charges, parking limits and higher running costs, inner London prices are higher.
Combination with jetting. Many engineers offer a combined jet and survey. They jet first for a clear view, then film, since a clean pipe shows more. This is best practice for older homes, and it usually costs somewhat more than a survey alone.
When a CCTV Survey Is Non-Negotiable
Before buying an older London property. Surveys of Victorian and Edwardian homes often find roots, collapsed sections and slipped joints. Since a standard homebuyer report will not show them. See our guide to pre-purchase drain surveys in London.
When a blockage recurs. If a drain keeps blocking, jetting the symptom without checking the cause wastes money, because the fault stays. A camera pass after jetting shows whether a structural fault is to blame.
Before building works near a drain run. Extensions, loft conversions and basement digs can damage drains, while a pre-works survey records the condition, so liability for later defects is clear.
When Thames Water disputes responsibility. If Thames Water contests whether a drain is adopted, an independent survey with a measured plan is strong evidence, since it is neutral. See our guide on Thames Water vs homeowner responsibility.
How to Choose a Survey Company in London
Look for firms that say their reports use a recognised coding method and that supply full digital footage. Because needs vary, if the report is for a mortgage or solicitor, confirm the format in advance. Some lenders only accept reports from certain schemes.
Avoid firms that quote a survey price and then charge extra for the report, the footage and the plan, since that hides the true cost. A reputable surveyor gives you one price that covers everything before the engineer attends.
Because our CCTV drain survey service covers all 32 London boroughs, help is close. Reports include digital footage and a drainage sketch as standard.
Frequently Asked Questions
How long does a CCTV drain survey take in London?
A basic check is quick, while a full pre-purchase survey with several runs takes longer. A complex mapping survey for a commercial property or converted house can take a full day.
Do I get the CCTV footage after the survey?
With a reputable surveyor, yes. You should get the footage as a digital file alongside the written report. Confirm this before you book, because some firms charge extra for footage or do not supply it.
Does a CCTV survey always find something?
No. Newer homes, and homes with relined drains, often get a clean survey. A clean report still has value, since it removes doubt and gives you a baseline record.
Will my mortgage lender accept the report?
Most lenders accept a coded report from a competent drainage engineer. However, some ask for a member of a particular trade body. If in doubt, confirm the format with your lender before you book.
How much notice do you need to book a survey in London?
Since bookings depend on availability for non-urgent home surveys, request a quote online via our contact form to check current availability.
Because every property is different, start with our guides to cctv drain surveys and drainage investigation advice. We also cover cctv drain surveys in Croydon and cctv drain surveys in Ealing, so you can see how the work runs near you.
