Terrain Drainage Systems

See our range of Terrain Drainage products and systems for commercial building applications. Our high-quality materials and innovative solutions will assure your under- and above-ground drainage projects are built to last.

The Terrain brand has been synonymous with the development of plastic commercial drainage systems for over 50 years, setting the industry benchmark for quality and product innovation.


Whatever your commercial project’s requirements, we have our trusted Terrain drainage products that are proudly manufactured in the UK, fully engineered and accredited to provide you with the perfect solution.  

From the extensive Terrain PVC Soil & Waste range and the Terrain Q noise reducing system, to our chemical-resistant Terrain FUZE HDPE system, Terrain Firetrap products and Terrain P.A.P.A. and Pleura ventilation system, you can be confident above and underground drainage products are engineered using high-quality materials – setting new standards while meeting your project requirements. Plus, they're backed by the company’s outstanding technical advice and customer support services.


See below for our full range of Terrain Drainage Products and their applications:

Not to forget the Polypipe Advantage Service will design and manufacture Terrain Drainage Stacks to project specifications, before delivering them directly to site-complete and with minimal on-site assembly required.




  • Stay up to date with our monthly technical bulletins, sign up here.




Terrain solvent weld soil drainage pipe fittings for commercial buildings

Terrain PVC Solvent Weld Soil

The industry benchmark for PVC commercial drainage pipe systems, our complete and comprehensive Terrain Solvent Weld Soil Pipe System has a wide range of fittings which include bends, branches and acces ...

Terrain MuPVC Solvent Weld waste

Terrain MuPVC Solvent Weld waste

Our complete and comprehensive solvent-weld MuPVC system offers a neat way to achieve a welded, permanent joint. ...

Terrain PVC Push Fit Soil

Terrain PVC Push Fit Soil

Our Terrain PVC Push-fit Soil System offers a comprehensive range of socketed pipes and fittings to meet all your project requirements where a push-fit system is preferred. ...

Terrain PP Push-Fit Waste

Terrain PP Push-Fit Waste

Our polypropylene (PP) push-fit waste system offers a range of plain ended pipes and socketed fittings to meet all your project requirements where a push-fit system is preferred. Contact us as early ...

Polypipe Terrain soil and waste pipe drainage system traps and pan connectors for commercial buildings

Terrain Traps & Pan connectors

A range of 32 and 40mm polypropylene traps are available, which includes self-sealing and anti-siphon bottle traps. All traps have universal compression outlets and have been manufactured in the UK to B ...

Terrain ABS Solvent Weld Waste

Terrain ABS Solvent Weld Waste

The Terrain ABS (Acrylonitrile Butadiene Styrene) Solvent Weld Waste System has a wide range of fittings, including bends, branches and access fittings in order to meet all your commercial drainage appl ...

Terrain P.A.P.A (Positive Air Pressure Attenuator) for commercial and public buildings

Terrain P.A.P.A.®

The Terrain P.A.P.A® (Positive Air Pressure Attenuator) is a positive pressure reduction device designed to mitigate the effects of positive air fluctuations in the drainage pipework system. As water d ...

Terrain Pleura air admittance valves for commercial and public buildings

Terrain Pleura Air Admittance Valves

The Terrain Pleura 50 and 100 air regulators provide ventilation to branch pipework.     When used with the P.A.P.A.® (Positive Air Pressure Attenuator), the system can replace ext ...

Terrain Firetrap Collars

Firetrap Collars

Terrain Firetrap Collars have been designed to re-instate the fire resistance of a wall or floor which has been penetrated by services such as plastic pipe systems used in soil and waste. They are compa ...

Firetrap Sleeves

Firetrap Sleeves

You can hinder the spread of fire via pipe penetrations by using our cost-effective Firetrap Sleeves which maintain similar thermal and acoustic properties to standard mineral fibre insulation. ...

Terrain Rainwater Outlets

Terrain Rainwater Outlets

We offer a range of Outlets for flat roof and balcony applications. For further details about our Rainwater outlet systems please call us on 01622 795200. ...

Contact us as early as possible in your project so that we can tailor the right drainage system or pipe solution for your project needs.
Contact us