Give your next build an enduring seal of quality. Terrain Underground products provide a 50+ year service life in tall and commercial buildings, taking fluids from inside and outside and effortlessly linking
soil, waste and rainwater systems to sewers. Choose from rigid and foam core pipes and a comprehensive range of fittings.
✓ Easy to lay
✓ Accommodates normal ground movement
✓ Adaptable, to connect to existing drainage systems
✓ Commercial building friendly
✓ Fully accredited product system
Enjoy the reassurance and peace of mind that comes from using world-class, UK manufactured materials. All our below ground systems are manufactured to Underground Drainage (EN 1401:1998) and Plastic Inspection Chambers for Drains and Sewers (EN 7158:2001) standards.
With industry-leading customer service and technical support, using Terrain Underground products is a decision you can make with complete confidence. From the start of your project to the completion and handover, we’re with you at every stage.
Check all the specifications for our underground drainage systems.
Download ManualView our certificate issued for and on behalf of BSI.
Download Certificate
