Terrain Drainage

Above ground drainage for Commercial and Public Buildings

Terrain have been pioneering the development of plastic drainage systems for over 50 years. We've set the industry benchmark for quality, installation, flexibility and offer unrivalled product innovation and technical expertise. We are the experts. To learn more about our history click here.

Our extensive range of engineered above ground drainage products have been designed for commercial buildings and our innovative Terrain Fabrication Service provides bespoke, engineered drainage solutions as complete systems ready to install. As they are built in our factory by experienced fabricators, you can benefit from the trusted Terrain integrity. Our systems are manufactured in the UK, fully engineered and accredited.

  • In-Building Rainwater & Rainwater Outlets

    In-Building Rainwater & Rainwater Outlets

    Our in-building Terrain Gravity Rainwater and Rainwater Outlets are used to drain flat roofs and balconies and convey water to underground drain or water re-use systems. We would recommend usi

  • In-Building Soil, Waste & Vent

    In-Building Soil, Waste & Vent

    We have systems to suit all applications. Our extensive range of building soil, waste and vent systems can drain internal and external fluids from inside any Commercial or Public Building to t

  • Chemical Soil & Waste

    Chemical Soil & Waste

    Terrain FUZE and Terrain Soil and Waste Systems can be used for a range of chemical applications due to their chemical resistance characteristics. This makes them ideal for use in laboratories

  • Noise Reducing Soil & Waste

    Noise Reducing Soil & Waste

    In noise sensitive environments such as hospitals, rest homes, schools, libraries and hotels we recommend using our Terrain Acoustic dB12 which is a polypropylene system with a mineral additiv

  • Gravity Rainwater Gutter & Downpipes

    Gravity Rainwater Gutter & Downpipes

    We offer a range of gutter profiles and downpipes in robust PVCu to help you achieve your performance and design objectives. If you wish to drain roofs to the underground drain then our Gravit

  • Siphonic Drainage Systems

    Siphonic Drainage Systems

    Our self-cleaning, high velocity Terrain HydroMax™ siphonic system provides an advanced roof drainage solution which can be used to drain large roof areas. Used on applications ranging from

  • Underground Drainage

    Underground Drainage

    Terrain underground drainage systems are made of PVCu - an established drainage system material with a long service life in excess of 50 years. They take fluids from inside and outside of buil

  • Fire Compartmentalisation

    Fire Compartmentalisation

    It’s essential to maintain the integrity of a fire rated compartment within your buildings. We offer a range of intumescent fire collars and sleeves that seal off penetrations in fire rated

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