Welcome to Weholite

Asset International Limited is the world’s leading manufacturer of Weholite large diameter pipes. As Uponor Infra’s UK and Irish licensee for the global leading Weholite HDPE Structured Wall Pipe and Weholite Modular brands, Asset International Limited provides creative, innovative and best-value designs for use in the water management industry.

Weholite products are used extensively throughout this industry, both in the UK and internationally. Industry sectors include flood defences, housing, sewerage, biogas, drainage, marine solutions, venting, ecological heating and cooling and engineered SUDS.

Click on the links below – these are our five major product areas and will give you the information you need to know to understand how Weholite can be used for your project. If you scroll down you will see examples of some of the projects we have been involved in around the world.

This site will tell you all you need to know about commissioning your own bespoke solution for your project. Take your time looking around, and if you have any enquiries please contact us.

Latest News


Weholite pipes were in the construction of the landmark Shell Corrib gas project in Mayo, Ireland. The gas field is anticipated to be operational in summer 2015 and is estimated to harvest a massive 5,940 billion cubic feet of natural gas.

Our projects around the globe

Weholite Modular in Cambridge

We worked with Cambridge Water Recycling Centre and produced the largest Weholite Modular tank ever built.
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Renewables in Leicester

The University of Leicester and Weholite worked together on a £42million renewables project.
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The Petron Bataan Refinery project

This cooling water intake project in the Philippines used Weholite for its super-sized intake structure.
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Weholite and Barratt Homes

Asset has worked with Barratt Homes to supply a drainage solution approved by Yorkshire Water.
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Greater Manchester Project

Asset International Ltd, the UK’s leading water management solutions company, has provided residential developer, Taylor Wimpey, with a storm water attenuation tank for its new Kings Grange housing development in Audenshaw, Greater Manchester.
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Weholite in Ireland

The landmark Corrib Mayo natural gas project is estimated to harvest a massive 5,940 billion cubic feet of natural gas.
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21 Days magazine

Issue #4

Check out the latest edition of our in-house magazine, 21 Days.

Featuring landmark Weholite projects from around the UK and worldwide, including the vast Corrib gas project in Mayo, Ireland; the largest Weholite Modular tank ever built at a Cambridge sewage treatment works and an infratunnel project in the southern Swedish city of Linköping.

The new issue of 21 Days also addresses key topics within the water management and construction industries at large, including the onset of AMP6, the issue of cost versus value and the UKs housing crisis.

To view the latest issue click here.