We use helibore pipe to make our stormwater attenuation tanks, culverts and tunnels. Designed to Highways Agency Standard BD12, it provides a 120 year life and is capable of carrying full highway loadings. It’s lightweight and easy to install.
All materials are sourced from quality assured certified suppliers. The pipe is helically wound from pre-galvanised steel coil to BS EN 10143, which has 305gms/m₂ zinc on each surface. Our product and manufacturing process is BBA Certified, Certificate No: 91/R062.
We offer full bedding and backfill details and jointing instructions. A wide range of factory fabrications including elbows, T’s, branches and manholes are available. For aggressive environments, there is a choice of secondary protective coatings including Monoguard Bitumen, Trenchcoat Polymer or Epoxy.