Drainage Investigation Services
Comprehensive Drainage Assessment, Surveying and Repair Solutions
Drainage investigations form a key part of Chelmer’s service offering, supporting both site investigations and subsidence assessments. Understanding the condition and performance of drainage systems is essential, as defective or leaking drains can contribute to ground movement or be affected by it. Chelmer provide a complete drainage service, combining surveying, testing and repair capabilities within a single coordinated approach.
By integrating drainage investigations with other site investigation methods, Chelmer are able to deliver a comprehensive understanding of site conditions. This ensures that any issues related to drainage are identified early and addressed effectively as part of the wider investigation process.
Role of Drainage in Ground Movement
Drainage systems can play a significant role in subsidence, either as a contributing factor or as a result of ground movement. Leaking drains can lead to localised softening of the ground, while damaged pipework may occur as a consequence of structural movement. Identifying and understanding these issues is critical when assessing the cause and extent of subsidence.
Chelmer’s drainage investigations are designed to establish whether defects are present and to determine their impact on the surrounding ground and structure. This information is essential for engineers, insurers and loss adjusters when evaluating claims and planning remedial works.
CCTV Drainage Surveys
Chelmer undertake detailed CCTV drainage surveys using modern inspection equipment, allowing the internal condition of drainage systems to be assessed accurately. These surveys provide clear visual evidence of defects such as cracks, blockages, root ingress or displaced joints.
All surveys are carried out using industry-recognised systems, enabling high-quality footage and accurate reporting. The data collected is used to identify any issues within the drainage network and to support further investigation or repair where required.
CCTV surveys are particularly valuable in subsidence investigations, where confirming the condition of underground drainage is an essential part of determining the cause of movement.
Leak Detection and Hydraulic Testing
In addition to visual inspection, Chelmer carry out hydraulic testing to determine whether sections of drainage are leaking. This involves testing specific parts of the system to establish whether water is escaping into the surrounding ground.
Leak detection is an important step in identifying potential causes of ground instability, particularly where no obvious defects are visible. By combining hydraulic testing with CCTV surveys, Chelmer are able to provide a more complete assessment of drainage performance.
Specialist leak detection of water supply pipes and other services can also be undertaken, further supporting the investigation of potential sources of ground movement.
Investigation of Complex Drainage Systems
Chelmer are experienced in investigating complex or inaccessible drainage systems, including those where there is no direct access via manholes. These “blind” systems can be challenging to assess, but through the use of specialist techniques and equipment, Chelmer are able to trace and survey these networks effectively.
This includes the investigation of surface water systems and soakaways, as well as assessing the integrity and performance of existing installations. By identifying issues within these systems, Chelmer help ensure that drainage is functioning as intended and not contributing to ground-related problems.
Drainage Repairs and Integrated Solutions
Where defects are identified, Chelmer are able to provide recommendations and quotations for repair works as part of the overall investigation. In many cases, repairs can be carried out alongside site investigation works, reducing the need for additional contractors and helping to streamline the process.
This integrated approach allows clients to move quickly from investigation to resolution, saving time and reducing administrative effort. By combining investigation and repair services, Chelmer provide a practical and efficient solution for managing drainage-related issues.
Supporting Comprehensive Reporting
All drainage investigation findings are incorporated into Chelmer’s reporting process, ensuring that results are presented clearly alongside other site investigation data. This includes details from CCTV surveys, testing results and any identified defects, along with recommendations where appropriate.
By delivering a single, comprehensive report, Chelmer provide clients with a clear understanding of drainage conditions and their impact on the site. This supports informed decision-making and helps ensure that any necessary remedial actions are carried out effectively.