Althon specialise in the design, manufacture and distribution of drainage products for the management, treatment, isolation and control of water. Our range of products includes Althon precast concrete headwalls, HDPE, cast iron and stainless steel flap valves, penstocks and stop logs. We can pre-fit our concrete headwalls with flap valves, penstocks, Kee Klamp hand rails as well as trash screens and gratings at our works to minimise installation time on site and reduce on-site health and safety concerns. We also manufacture our own High Capacity Drainage Channel system which is complimented by our range of linear drainage channel products for the effective management of surface water run-off.

Company details

Vulcan Road South , Norwich , Norfolk NR6 6AF United Kingdom

Locations Served

Business Type:
Industry Type:
Water and Wastewater
Market Focus:
Internationally (various countries)

Althon Ltd, part of the MAG Group of companies, is a business specialising in the design, manufacture and supply of Surface Water Drainage and Sustainable Urban Drainage Systems for the treatment and management of surface water run-off for all types of construction sites, from Supermarket Car Parks, Residential Developments, Industrial Units to Heavy Freight Depots.

Our extensive Product Range allows Engineers and Contractors to choose the most appropriate and cost effective Surface Water Drainage solution tailored to their project specific requirements.

We aim to provide products which are safe, of the highest quality as well as fast and therefore inexpensive to install. We are also able to assist and advise with regard designers’ obligations under current Construction Design Management (CDM) legislation.

Our innovations in Sustainable Urban Drainage (SUDS) enable us to offer solutions which can assist with overcoming various planning issues and approvals required by the regulating authorities. Our commitment to Sustainable Drainage means wherever possible, we aim to use recycled and recyclable materials.

Our Product Range Currently Consists of :

  • Althon High Capacity Channel – The High Capacity Channel Drainage System from 150mm to 600mm widths
  • Althon SUDS – Including the SEL Source Control System, The SEL Tree Protection System, SEL Rainwater Harvesting System and the SEL Sustainable Drainage Geotextiles
  • Althon Headwalls – Althon Precast Concrete (PCC) & Glass Reinforced Concrete (GRC) Headwall Range for Drainage Outfalls and Inlets
  • Althon Virtual Curtain The SEL Virtual Curtain Gas Interception, Migration and Treatment System
  • Althon Skeletank- The Lightweight, Compact, Modular Residential Rainwater Harvesting, Attenuation and Soakaway System
  • Althon Aquatics - A range of specialist products such as Flap Valves, Penstocks, Stop Logs and Wind Pumps for the Safe and Effective Management of water
  • Althon Mea Channel Drainage - Althon Mea Channel Drainage includes GRP Drainage Channel, Polymer Concrete Drainage Channel & Kerb Channel Drainage Systems. Channel from 100mm to 400mm widths