Commercial Drainage Service
CCTV Drain Surveys
Camera surveys that establish what condition a drainage system is actually in — used for recurring problems, due diligence, responsibility disputes and as the baseline record for a maintenance programme.
A CCTV drain survey replaces assumption with evidence. A camera is run through the drainage system so the condition of the pipework, the position of any defect and the way the runs connect can be seen rather than guessed at. For a facilities or property team, that is the difference between approving works with confidence and approving works because someone said the drain looked bad.
Most commercial survey requests come from one of three positions: something keeps blocking and nobody knows why, a building is being bought, sold or let and the drainage needs checking, or a dispute has arisen about which party owns the fault. A survey answers all three, because it records what is there, where it is, and what state it is in.
The drainage professional behind The Drain Lads has over 20 years of experience in the drainage industry. That experience matters most in interpretation — footage on its own is just footage. What a client needs is a plain reading of what the defect is, whether it needs acting on now, and what happens if it is left.
When this service is used
Recurring blockages on the same run
When a drain has been cleared more than once in a year, a survey is normally cheaper than the next three attendances. Repeat blockages usually indicate a defect, a fall problem, a displaced joint or debris that jetting alone will not resolve permanently.
Pre-purchase and pre-lease due diligence
Before taking on a building or a lease obligation, a survey establishes the condition of what is being inherited, including whether previous repairs were done properly and whether the system has capacity issues.
Landlord, tenant and insurer questions
Where responsibility for a fault is contested, the survey records the defect's position relative to the demise and what the run serves. We report the findings; the commercial conclusion is for the parties to reach.
Post-works verification
After a repair, lining or excavation, a survey confirms the work has been completed correctly and gives the property file a closing record of the pipe's condition.
Unknown or undocumented systems
Older industrial and multi-tenanted sites frequently have no accurate drainage plan. A survey, combined with tracing, produces a usable record of the chambers, runs and connections that exist.
Baseline for planned maintenance
Before setting jetting or inspection intervals across a site or portfolio, a survey identifies which runs are vulnerable and where attention needs to be concentrated.
What a survey typically identifies
These are the findings that most often explain a commercial drainage problem and change what the right remedy is.
- Cracked, fractured or deformed pipework, and joints that have opened or displaced
- Root ingress through joints and defects, often on runs near planting, verges or mature trees
- Partial or full collapse, and sections where the pipe has lost its shape under vehicle loading
- Fat, oil and grease build-up on kitchen and canteen runs, and scale or silt in industrial and yard drainage
- Standing water indicating a fall problem, a backfall, or a downstream restriction
- Debris, rubble, wipes and foreign objects, including construction waste left in the system
- Misconnections between foul and surface water systems, a common source of pollution and compliance issues
- Chambers, interceptors and connections that do not appear on any existing site drainage plan
Process
How a CCTV drain survey is carried out
The survey is planned around the site as much as the drainage. Access, timing and what you need the report to prove are agreed before anyone attends.
- Step 1
Define the objective
We establish what the survey needs to answer — a recurring blockage, a purchase decision, a dispute or a maintenance baseline. That determines which runs are surveyed and how the findings are recorded.
- Step 2
Access and preparation
Chambers are located and lifted, and the runs are cleared of standing water or debris where necessary so the camera can record usable footage. A dirty pipe surveys badly, so some jetting is often needed first.
- Step 3
Survey and record
The camera is passed through the accessible runs, recording pipe condition, defects, connections and chamber detail as it goes, with observations noted against their position along the run.
- Step 4
Report and recommendations
You receive the findings with a plain explanation of what was found, what it means for the property, what needs attention now and what can reasonably be monitored.
Why surveys matter on commercial premises
On a commercial site, drainage expenditure has to be justified to somebody — a client, a board, a landlord, a budget holder. A survey provides the justification, and equally often it prevents unnecessary spend by showing that a run is serviceable and only needs cleaning.
It also protects against the more expensive failure mode. A defect that is known about can be scheduled, priced and done at a convenient time. The same defect discovered when a yard floods during trading, or when foul water surcharges into a kitchen, costs considerably more in disruption than in drainage work.
For portfolios, surveys create a consistent condition record across properties, which makes it possible to prioritise properly rather than react to whichever site shouts loudest.
On-site considerations and disruption
Surveys are usually the least disruptive drainage activity on site, but they still involve open chambers and equipment in circulation areas.
- Chambers in car parks, service yards and public areas are guarded and reinstated as work moves along the run.
- Attendance can be planned around trading hours, deliveries, shift changes and term dates where a site cannot release the area during the day.
- Site inductions, permits to work and signing-in procedures are followed as the property requires.
- Interceptor and confined space situations are assessed before entry rather than decided on the day.
- Where a run cannot be surveyed because of a blockage or collapse, we tell you at the time and set out what is needed to complete it.
Related services
Services used alongside surveys
Drainage problems rarely sit in one category. These are the services most often used alongside this one.
Drainage investigations
Where a survey alone does not explain a recurring problem, a structured investigation across the wider system usually does.
View serviceHigh pressure water jetting
Runs often need cleaning before a camera can record anything useful, and jetting is frequently the remedy the survey recommends.
View serviceDrain tracing & mapping
Locating and recording underground runs and chambers where the site has no accurate drainage plan.
View serviceDrain repairs
Acting on the defect the survey has found, using the method that suits the pipe and the site.
View serviceDrain relining
No-dig restoration of a damaged run, usually the preferred option where excavation would close a yard or car park.
View servicePlanned drain maintenance
Turning survey findings into a scheduled programme so the same defects do not become emergencies.
View service
Sectors that use CCTV surveys most
Survey requirements differ by property type — an industrial yard is surveyed for different reasons than a managed office building.
FAQs
Questions we are asked about this service
If your question is not covered here, send the site details through and we will answer it directly.
Book a CCTV drain survey for your site
Send us the property address, what is happening and what the survey needs to establish. We will come back with a scope and a commercial quote.