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   Norwich, NR6 6AF View on map
Call 01603 488700   Visit website
Althon Precast Headwalls and Water Management Althon Limited manufacture and distribute specialist water management products to the construction industry. We design and manufacture precast concrete headwalls to meet Sewers for Adoption and Severn Trent Guidelines. Our product range includes flap valves, penstocks and stop logs as well as trash... Read more
  • Althon: Standard precast concrete headwalls
    Althon: SFA (Sewers for adoption) headwalls
    Althon: Rectangular Sewers for Adoption (RSFA) Headwalls
    Althon: Angled precast concrete headwalls
    Althon: Rectangular precast concrete headwalls
    Althon: Splayed Wing Wall Headwalls



    Althon precast headwalls offer a cost effective alternative to in-situ structures for connecting pipework discharging into open watercourses. All drainage pipes discharging into open watercourses, such as swales, ditches, ponds and rivers, should be fitted with an appropriate Althon headwall. Althon headwall units can be pre-fitted with a range of...
  • Althon: Sewers for Adoption Safety Chains
    Althon: Highway Safety Chains
    Althon: Wastop Inline Non Return Valves
    Althon: Galvanised steel orifice plates - curved
    Althon: Galvanised steel orifice plates - flat
    Althon: Stainless Steel 304 Orifice Plates - flat


    Stormwater flow control devices

  • Althon: Culvert header beams and wingwalls


    Box culverts

  • Althon: Large concrete slot drains for M6 Smart Motorway


    Channel drainage

    Althon surface water linear drainage channels for applications with load classes from A15 through to F900. Products include GRP drainage channel, polymer concrete drainage channel & kerb channel drainage systems....
  • Althon: Chieftan precast concrete inspection chambers


    Inspection chambers

  • Althon

    Combined drainage kerbs

    Althon Mea Kerb Channel Drainage is a high performance easy to install one part kerb and channel complete surface water drainage system. The Althon Mea Kerb Drainage System has been developed to suit all road construction situations where there is a requirement for kerbs. The Althon Mea Kerb Drainage System can be used alongside Motorways, Traffic...
  • A. Head office
    Vulcan Road South
    NR6 6AF
    Call: 01603 488700