Our surveys, aided by modern technology, give a rapid, comprehensive and cost-effective analysis of your drainage system. Using small closed-circuit television cameras (CCTV), we examine the underground drains to find the causes of blockages or structural failure. The CCTV equipment is highly portable and can survey pipe diameters from 75mm (3") upwards, the camera providing a high definition colour picture of the drain interior. This allows an effective diagnosis to be made, while selected photos extracted from the video are included in the detailed report that you will receive as part of the survey.
A CCTV inspection will reveal most structural defects within a drain, including tree root penetration, cracked or fractured pipes, displaced joints and poor gradients. However, CCTV inspections do not necessarily tell whether a drain is leaking, leaking drains being a major cause of subsidence. Leaks often result from defective pipe joints or couplings, which cannot be seen by CCTV. For this reason  's surveys include hydraulic leak testing (wherever appropriate) - the ONLY way to know for certain whether a drain is watertight or not.
A fully comprehensive Survey Report' includes:
| |
A detailed plan of the drainage layout (sample diagram) |
| |
Detailed description of all features of the underground drainage system |
| |
Assessments of manholes, inspection chambers, gullies, septic tanks etc. |
| |
Overview of the drainage system written in ‘PLAIN ENGLISH’ |
| |
High resolution colour photographs |
| |
Identification of problems or defects within the system |
| |
Recommendations and costings for any necessary remedial works |
| |
VHS copies of CCTV survey available on request |
|
