Surface water drainage products and systems to collect, treat, store and release stormwater and rainwater from highways, pavements, industrial hardstandings and driveways on EXTERNAL WORKS. Helping you find the best product for your project.
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  • Polypipe Civils: Ridgistorm-XL low flow channel pipe
    Ridgistorm-XL low flow channel pipe
    Polypipe Civils
    Ridigistorm-XL low flow channel pipes are designed to ensure a self-cleaning flow velocity which prevents water and sewerage becoming stagnant, or flow being blocked, in adoptable sewers. The Ridgistorm-XL low flow channels...
  • Althon: SFA15 D headwall, backwall height 2350
    SFA15 D headwall, backwall height 2350
    Althon
    SFA15 D precast concrete headwalls are designed to comply with Sewers for Adoption guidelines for pipework discharging into open watercourses for plastic, clay or concrete pipework up to 1200mm up to 1200mm Pipework; 2350mm...
  • Althon: 316 stainless steel orifice plates - flat
    316 stainless steel orifice plates - flat
    Althon
    Flat orifice plates in 316 stainless steel to restrict and regulate the flow of water. The opening in the plate can be manufactured to specified dimensions and positions. All necessary fixing materials and an EPDM seal with...
  • Marshalls: Precast concrete inspection chambers
    Precast concrete inspection chambers
    Marshalls
    Marshalls provides a modular system of inspection chambers manufactured from precast, steel reinforced concrete. All units have a tongue-and-groove detail to aid accurate location when building up. The cement used ensures...
  • Althon: Chieftan inspection chamber 1220 x 1070 x 1120
    Chieftan inspection chamber 1220 x 1070 x 1120
    Althon
    The Althon Range of Chieftan Precast Inspection Chambers has been designed to make installation on-site as straightforward as possible. Each inspection chamber comes in two halves with a reinforced cover slab. The units are...
  • Althon: H50C headwall, backwall height 815
    H50C headwall, backwall height 815
    Althon
    A one piece concrete headwall to suit pipes up to 600mm internal diameter. These headwalls can be used when the ditch bank is very shallow approx 1:3.3 They can be provided with fixings for grating, flap valves or with a...
  • Althon: Precast concrete headwalls with factory-fitted options
    Precast concrete headwalls with factory-fitted options
    Althon
    Precast concrete headwalls – the largest range in the UK. To make the selection of a precast concrete headwall and its associated factory-fitted accessories as easy as possible, Althon provides an online Headwall...
  • ACO Water Management: ACO HexDrain® Pro drainage channel
    ACO HexDrain® Pro drainage channel
    ACO Water Management
    ACO HexDrain Pro is a high-quality, high-strength black plastic channel drainage system. It has integral black plastic edge rails for improved strength. Each channel unit comes with Heelguard™ gratings fitted with ACOs...
  • Althon: H8C headwall range,  1100 / 1500 / 2100 backwall height
    H8C headwall range, 1100 / 1500 / 2100 backwall height
    Althon
    A one-piece reinforced concrete headwall to suit plastic or clayware pipes up to 525mm or PCC pipes up to 450mm. Available with three standard backwall heights, 1.1m, 1.5m and 2.1m; lfting points cast in to each wingwall for...
  • Marshalls: Priora Flag permeable paving
    Priora Flag permeable paving
    Marshalls
    Priora Flag paving is large-sized permeable paving which comes in three plan sizes and two contrasting colours offering designers creative freedom. Each unit features the patented Marshalls Priora nib which combines...
  • Tobermore: Hydropave 240 permeable paving
    Hydropave 240 permeable paving
    Tobermore
    Hydropave 240 is a permeable concrete block paving. Its larger block size of 240 x 120 x 80mm increases the speed of installation. The Machine Lay version is Hydropave 240 ML and it is designed specifically for machine lay...
  • Hydro International: First Defense® vortex stormwater separator
    First Defense® vortex stormwater separator
    Hydro International
    First Defense® is an economical hydrodynamic vortex separator which effectively removes sediment, litter and oil from surface water runoff. Captured pollutants are kept safely within the drainage network keeping public areas...
  • Althon: Medium precast concrete headwalls
    Medium precast concrete headwalls
    Althon
    Althon medium precast headwalls are suitable for pipe sizes ranging from 450 to 900mm concrete or plastic pipework. Headwall openings are cast to suit the outsider diameter of the connecting pipework. Medium headwalls can be...
  • ACO Water Management: ACO QuadraCeptor water run-off filtration system
    ACO QuadraCeptor water run-off filtration system
    ACO Water Management
    ACO QuadraCeptor is a specialist rainwater and surface water run-off filtration system for the removal of sediment and harmful pollutants. The first objective of any SuDS scheme is to manage the water at source and, where...
  • Polypipe Civils: Permachannel stormwater collection drainage
    Permachannel stormwater collection drainage
    Polypipe Civils
    Permachannel is a linear drainage system designed for collecting and treating stormwater. The system comprises single or multiple interconnected channels appropriately located to collect surface water run off from...