CCTV Surveys

Vertical Survey Services’ advanced CCTV survey technology delivers cost-effective inspection of drains and sewers, providing an instant, detailed picture of their condition. We employ remote-control specialist camera systems and software to relay images to a mobile van unit, enabling our engineers to assess the structural condition and integrity of the pipework without disruption to the premises, the environment or site operations.

Our highly sophisticated CCTV survey equipment, camera units and software enable us to get optimal results from underground drain or sewer surveys, providing video evidence of their condition along with comprehensive technical reports.

Utility Surveys

With accidental damage to utilities from construction activity on the rise, Vertical Survey Services’ utility mapping service provides a reliable safeguard against costly delays and other financial losses. Our utility surveys detect and trace electricity; telecoms; cable TV; ductile iron water and sewer pipes; and gas services, and comprise the following elements:

• Site investigation
• Manhole lifting
• Drainage location
• Radio detection

We utilise two key detection techniques to locate underground services:

1. Our initial approach is to incorporate electronic detection of underground services using electromagnetism. As the receiver is swept across the field, any conducting material below the surface creates a magnetic field and is thus detected.

2. Our second approach is to detect an active signal artificially generated by the transmitter, either by direct connection or induction. A passive signal relates to a naturally transmitted signal on a buried conductor. This is detected by observing any 50Hz energy or re-radiated VLF radio energy present.

The main disadvantage of electromagnetic technology is its inability to locate non-conducting materials such as asbestos piping. In order to get around this issue, we use ground penetrating radar (GPR) techniques to deliver comprehensive survey information. When all underground services have been identified, we can (if required) conduct a GPS survey to record positioning points ready for data transfer. Data recorded can then be overlaid on to a topographic base plan and imported to AutoCAD format.

Find out more

Call Vertical Survey Services on +44 7944 664067 or write to us using our email form for more information.