CCTV Drainage Survey

Construction work always has its surprises, particularly beneath the earth's surface. Decades-old drainage systems can suddenly become causes of headaches that hinder work and increase expenditures. A pipe collapse, a clogged pipe that won't budge, or a joint misalignment can put your schedule in disarray, and the fact is, conventional inspections usually fail to detect these issues.

That's where a CCTV Drainage Survey can come into its own. It's an inspection that doesn't require you to break open your pipes or invade your drains, yet it provides you with the knowledge to deal with problems before they become a costly disaster.

At Intersect, we perform CCTV drainage surveys throughout the UK, giving you a clear idea of what's going on underground. With trained technicians, high-quality equipment, and transparent, actionable reporting, we ensure your project remains on schedule, and that there are no hidden surprises underground.

Why You Need a CCTV Drainage Survey

Most drainage issues remain invisible, until they suddenly become a real headache. By the time a blocked or collapsed drain appears, it is likely to bring work on your project to a standstill, derailing schedules and budgets. Emergency fixes are expensive, and frequently, a bit of early inspection might have avoided them.

And there's more to fret about: flooding or leaks can render your site hazardous, posing health hazards for employees and guests, and at times even creating regulatory problems.

That's where a CCTV Drainage Survey can help. Rather than digging up pipes blindly, you have a clear, inside look at what's going on underground. High-definition cameras pick up on finicky problems, such as minute cracks, blockages, misaligned joints, or pipe deformations, so you can repair issues before they become costly or hazardous.

What is a Topographical Survey?

How a CCTV Drainage Survey Works

Here’s what you can expect when we survey your drains:

  1. Initial Assessment
    • We go through site plans and existing drainage records.
    • Access points, like manholes or inspection chambers, are located.
  1. Camera Deployment
    • A waterproof, high-res camera travels through the pipes.
    • Our technicians monitor footage in real time, noting any issues.
  1. Data Analysis

    • Footage is checked for cracks, root intrusion, blockages, corrosion, or collapsed sections.
    • Pipes are graded by condition and urgency for repair.
  1. Reporting
    • Reports include images, defect codes, and recommendations.
    • They’re formatted to support planning, compliance, and design decisions.

Our surveys can be integrated with BIM (Building Information Modelling), making it easy to link the data with your project plans.

Roadway and Pavement Radar Surveys

Benefits of Getting a CCTV Drainage Survey

You may be asking yourself, is a CCTV Drainage Survey worth the money? Truthfully, it can save you so much time, money, and stress. Clients trust these surveys because they provide clear, actionable advice that really does make a difference on site. 

Here's what they like most:

  • Avoid surprises: Catch hidden issues early, before they cause construction to grind to a halt.
  • Know your costs: Ensure you have precise data on pipe conditions so that you can confidently budget for maintenance or repairs.
  • Stay compliant: Ensure your drainage conforms to UK construction and environmental regulations.
  • Keep projects moving: Deal with problems before they become expensive delays.

Consider a recent UK residential development, for instance. A drain collapse was set to delay the project by weeks. Our CCTV survey identified the issue rapidly, allowing the team to plan repairs without impacting the schedule. Detection like this early on keeps projects running as planned, within budget, and safe for all on the site.

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Types of CCTV Drainage Surveys

Every project is different, so we offer surveys that match your needs:

Domestic Drain Surveys

Perfect for homes or pre-purchase checks.

  • Finds leaks, blockages, and root intrusion.

  • Helps with maintenance planning and property valuation.

Commercial Drain Surveys

For offices, retail centres, or industrial sites.

  • Detects corrosion or structural issues in larger pipelines.

  • Helps schedule targeted repairs to reduce downtime.

Industrial and Infrastructure Surveys

For roads, railways, and large utilities.

  • Efficiently surveys long networks with crawler cameras.

  • Reports support safety and environmental compliance.

New Construction Drain Surveys

Check existing drainage before building.

  • Confirms pipe capacity and condition.
  • Prevents delays caused by unexpected issues.
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The Technology Behind Our CCTV Surveys

Here at Intersect, we don't just glance over drains, we inspect them in-depth, with equipment that shows you what's truly happening below the surface.

Our technology enables us to find issues that routine inspections would miss completely, so you know you can trust your drainage system's health.

  • Self-loading crawler cameras – Travel via pipes up to 600mm in diameter, going around bends and into restricted areas to provide a full overview of the system.
  • Pan & tilt camera heads – Record every view in 360° so no concealed defects are missed.
  • High-definition imaging – Even minute cracks, corrosion, or joint misalignments are detectable, preventing impending failure.
  • GPS mapping – Locates pipes with precision, meaning your survey information interfaces perfectly with project plans and site maps.

It's not merely about physical harm, though. Our CCTV equipment will also identify slow-flowing areas, silt build-ups, uneven gradients, and blockages before they become expensive problems.

By uncovering structural and operational issues, our surveys enable you to budget for repairs, schedule maintenance, and control risk. Acting proactively, this prevents your project from getting off track, saves budgets, and ensures safe and efficient operation of your drainage system.

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Common Problems CCTV Surveys Spot

When drainage is concerned, what you don't see can really do you harm. Our CCTV surveys usually reveal problems that, left unrepaired, may lead to severe delays, additional expense, and safety hazards. Here are the problems we most commonly encounter:

  • Fractures and cracks: Aging materials, pressure changes, and ground movement can all cause pipes to fracture. Over time, tiny fractures could grow and develop into leaks or collapses.
  • Collapsed or deformed pipes: Tree roots, overloaded machinery, or normal stress and strain can cause pipes to collapse or deform, obstructing flow and requiring urgent repair.
  • Blockages: Debris, grease, or sediment accumulation can impede drainage, raising the possibility of flooding or backups.
  • Root intrusion: Roots typically infiltrate joints and create significant blockages in older clay or earthenware pipes.
  • Joint misalignment: Misaligned pipes leak, diminish flow efficiency, and speed deterioration.
  • Water infiltration or exfiltration: Groundwater entering pipes or sewage leakage outward causes structural damage and environmental issues.

Finding these problems early in a CCTV survey means you can prepare for fixes, prevent emergencies, and ensure your project stays on schedule. Preemptive inspections save you money, time, and unnecessary distress later on.

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Using CCTV Data to Guide Your Projects

A CCTV drainage survey is only truly valuable if you put the data to work. Here’s how our clients make the most of it:

  • Design decisions – Verify the condition and integrity of any drainage in place before construction commences, minimizing surprises.
  • Maintenance planning – Prioritize maintenance by defect severity so your resources are utilized effectively.
  • Environmental compliance – Design all drainage systems to comply with UK construction and environmental law.
  • BIM integration – Place survey data directly into your project model so it is quick to access and plan from.

By employing this information upfront, you can avoid months of debugging and remain on target for your project.

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Planning Your Survey

To make the most from your CCTV drainage survey, a little pre-planning works wonders. Taking the necessary steps beforehand will see the survey conducted smoothly and give the most beneficial information for your project.

  • Clear your site – Ensure all access points, inspection chambers, and manholes are free from obstruction and safe to access. This enables our technicians to work quickly and avoid delays during the survey.
  • Schedule intelligently – Schedule the survey with your project milestones to keep disruptions to ongoing work to a minimum. Carrying out the survey at the appropriate time means any problems can be rectified without bringing progress to a standstill.
  • Decide on data use – Consider how you’ll apply the results. Will the findings guide maintenance schedules, support design decisions, or satisfy compliance requirements? Knowing this in advance helps us tailor the report to your needs.

Early planning minimizes risks, avoids expensive surprises, and maintains your project on schedule throughout.

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Protect Your Project with CCTV Drainage Surveys

Undetected drainage problems can halt construction, increase costs, and create safety risks. A CCTV Drainage Survey gives you the insight needed to prevent these issues. 

With advanced technology, experienced technicians, and actionable reports, Intersect helps your project move forward safely and efficiently.

Your drainage might be out of sight, but it doesn’t have to be out of mind. Schedule a consultation today and get peace of mind for your underground systems.

Frequently Asked Questions (FAQ)

How long does a CCTV drainage survey take?

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The duration depends on the length of the pipes and the complexity of the site. Small residential systems can usually be surveyed in just a few hours, while larger commercial or industrial networks may take several days to complete. Our team plans each survey carefully to ensure accurate results without unnecessary delays.

Is excavation required?

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No. CCTV surveys are completely non-invasive. We use existing access points like manholes and inspection chambers to carry out the inspection. Excavation is only necessary if the survey identifies issues that require physical repairs.

Can you detect tree root blockages?

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Absolutely. Root intrusion is one of the most common causes of drainage problems, especially in older clay pipes, and our high-resolution cameras can spot even minor root growth before it becomes serious.

Are your reports compliant with UK regulations?

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Yes. All our reports meet UK construction and environmental standards, giving you reliable documentation for planning, maintenance, and compliance.

Do surveys provide legal documentation or certification?

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Yes. Our reports comply with UK regulations and can be used for compliance and project records.

A reliable and efficient company

”We've been working with Intersect for several years and have always found them to be reliable, efficient and good value for money. I can honestly recommend them."

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Peter F , Commercial Director

Excellent customer care

”The whole process was very smooth from start to finish, with excellent communication and customer care. We'll definitely be working with Intersect in the future."

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Henry P , Director

Efficient and knowledgeable

”The in-depth knowledge which Intersect Surveys have in their field is second to none. They're efficient, helpful and in my opinion, excellent value. "

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Robert M , Site Manager

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