What Does a CCTV Drain Survey Include?

What Does a CCTV Drain Survey Include?

A CCTV (Closed-Circuit Television) drain survey is a process of inspecting and assessing the condition of a drainage system using a unique and very small camera which is attached to a flexible cable and then inserted into the drain. These services have become very famous, and you can easily avail of a CCTV Drain Survey in Oxford or elsewhere in the United Kingdom. The survey provides a detailed and accurate report on the condition of the drain and identifies blockages, damages or other issues that may need attention. The following components are usually included in a CCTV drain survey:

  1. Camera Inspection
  2. Drainage Mapping
  3. Blockage Identification
  4. Damage Assessment
  5. Detailed Report

Camera inspection

The camera inspection is a crucial part of a CCTV drain survey. It involves inserting a high-quality camera into the drain, which is connected to a monitor, to provide a detailed view of the interior of the drain. The camera is typically mounted on a flexible cable inserted into the drain and controlled remotely by an operator. During the camera inspection, the operator can view the live footage of the drain on the monitor and record any relevant information about the condition of the drain.

The camera can provide images of the entire interior of the drain, including any bends or corners that would be difficult to see otherwise. The operator can also move the camera up and down the drain to get a better view of any potential issues. The camera inspection is beneficial for identifying any blockages, cracks, leaks, or other damage to the drain. It can also help identify the cause of any blockages, such as tree roots or foreign objects. Which can inform the best course of action for clearing the blockage and preventing it from happening.

Drainage mapping

Drainage mapping is an essential aspect of a CCTV drain survey. It involves creating a detailed map or plan of the inspected drainage system. The drainage map is created using the data collected during the CCTV survey, including the pipes’ location, size, and layout. The drainage mapping process typically involves using specialized software to analyze the CCTV footage and create a digital drainage system map. The software can measure the diameter and length of the pipes, identify any blockages or damage, and provide detailed information about the condition of the pipes. Drainage mapping is beneficial for several reasons.


Firstly, it provides an accurate overview of the drainage system. Which can be used to identify any issues and plan appropriate repairs or maintenance work. Secondly, it can help prevent unnecessary digging or excavation of the drain. As the exact location of any issues can be identified without requiring extensive manual inspections. Drain mapping is highly beneficial for large industrial and commercial properties. So if you have a business in Crawley, you will find several companies offering Drain Unblocking in Crawley.

Blockage Identification

Blockage identification is an integral part of a CCTV drain survey. A CCTV camera can provide a clear view of the inside of the drain, which makes it possible to identify any blockages that may be present.

The cause of the blockage can also be identified during the CCTV survey. For example, the blockage may be caused by debris. Such as leaves or dirt, or other foreign objects lodged in the drain. In some cases, blockages can be caused by tree roots or other structural issues with the drain. Identifying blockages is important because they can cause significant problems with the drainage system. Blocked drains can cause flooding, foul odours, and damage to the pipes.

Damage Assessment

Damage assessment is an essential aspect of a CCTV drain survey. The CCTV camera can provide a clear and detailed view of the inside of the drain. Allowing for any damage or defects to be identified and assessed.

The types of damage or defects that may be identified during a CCTV drain survey include cracks, fractures, holes, corrosion, and collapsed pipes. The severity of the damage can also be assessed. Which is essential for determining the appropriate course of action to repair or replace the affected pipes.

Damage assessment is critical because damage to the drain can cause many problems, including blockages, leaks, and water damage. By identifying and assessing any damage during a CCTV survey, appropriate action can be taken to repair or replace the damaged pipes and prevent further damage to the drain.

In addition to assessing any existing damage, a CCTV drain survey can also be used to identify areas of the drain that may be at risk of damage in the future.

Detailed report

A detailed report is an essential deliverable of a CCTV drain survey. The report provides an in-depth view of the condition of the drain, including any blockages, defects, or damage identified during the survey.

The report typically includes the following information:

  1. Introduction
  2. Findings
  3. Recommendations
  4. Supporting documentation

The detailed report is a critical component of a CCTV drain survey. It provides a comprehensive overview of the drain’s condition and actionable recommendations for necessary repairs or maintenance work. This information can be used to ensure the continued functionality and longevity of the drainage system and to prevent any future issues from arising.

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