Environmental Techniques was established in 1992 to provide a specialist No Dig engineering service to the Water and Sewage Industry. From inception the company established its name as a respected provider of Trenchless Technology. From its four strategic locations, Environmental Techniques offers the following services. > Sewer Cleaning & Desilting > CCTV Surveys > Flow Monitoring & IAS Surveys > CIPP Lining > Robotic Cutting > Manhole Surveys > Man Entry Surveys > Patch Repairs > Manhole Rehabilitation > Man Entry Pipe & Culvert Rehabilitation. CFRP external pipebridge rehabilitation. Confined Space drone surveys - 3D LiDAR & digital twin modelling. In 2017 Aegion acquired Environmental Techniques, enabling the company to flourish.