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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  • Elite Precast Concrete: Precast concrete manhole seating rings
    Precast concrete manhole seating rings
    Elite Precast Concrete
    Concrete frame adjusting / seating rings are reinforced 65mm deep units which can be used in place of engineering bricks to adjust the ductile or cast iron covers and frames to the required level. They can be quickly and...
  • Terram: TERRAM 1B1 drainage geocomposite
    TERRAM 1B1 drainage geocomposite
    Terram
    TERRAM 1B1 composite drains are suitable for vertical or inclined structures and ground drains, and plays an important role in protecting structural waterproofing.
  • Marshalls: Coppice Priora permeable block paving
    Coppice Priora permeable block paving
    Marshalls
    Coppic Priora is a new permeable block paving system suitable for SUDs requirements within public areas and private driveways. The product includes three colour ranges, with each range containing three different blends...
  • Polypipe Civils: Permavoid shallow geocellular water management system
    Permavoid shallow geocellular water management system
    Polypipe Civils
    Permavoid is a geocellular water management system designed to provide stormwater retention, attenuation or infiltration in shallow applications. It can be used as part of an engineered or soft SuDS solution. The system...
  • SDS: SDS Surface Water Management
    SDS Surface Water Management
    SDS
    SDS specialises in engineering innovative and cost-effective turnkey surface water management systems. SDS’s integrated water management system ensures that surface water run-off can be collected, treated, stored and...
  • SDS: SDS Rigofill Modular Stormwater Storage/Infiltration
    SDS Rigofill Modular Stormwater Storage/Infiltration
    SDS
    Rigofill stormwater storage systems are geocellular strctures used to store stormwater that is unable to soak into the ground naturally. The water can then be allowed to infiltrate, under controlled conditions, or can be...
  • Althon: One piece heavy duty silt trap inlet
    One piece heavy duty silt trap inlet
    Althon
    Manufactured in GRC and provided with a unique anchorage system. A lightweight recessed headwall suitable for most situations where batter angle is not less than 45 degrees and for use in minor water courses with moderate...
  • Althon: Althon CH 600 high capacity GRC drainage channel 412l/m
    Althon CH 600 high capacity GRC drainage channel 412l/m
    Althon
    Althon CH 600 precast GRC drainage channels. Trapezoidal profile. High capacity of 412 l/m. Channel width 610mm. Overall dimensions L1000mm x W875mm x D1000mm. Choice of 9 lids for C250 and D400 loadings. Suitable for large...
  • GreenBlue Urban Ltd: HydroPlanter™ - rainwater bio-retention modular planter
    HydroPlanter™ - rainwater bio-retention modular planter
    GreenBlue Urban Ltd
    HydroPlanter™ is a modular, 'plug and play’ bio-retention raingarden system designed to provide sustainable urban drainage solutions. It can be retrofitted into highways schemes or installed on new developments of any size.
  • Althon: SFA10 B headwall, 1040 backwall height
    SFA10 B headwall, 1040 backwall height
    Althon
    SFA10 B precast concrete headwall for connecting pipework discharging into open watercourses. Sewers for Adoption compliant. Pipework up to 500mm. Backwall height 1040mm.
  • SDS: SDS GEOlight® Modular Underground Stormwater Storage
    SDS GEOlight® Modular Underground Stormwater Storage
    SDS
    GEOlight® stormwater management units are suitable for use in sustainable drainage systems (SuDS) for stormwater attenuation or soakaway infiltration. The units are PVC modular honeycomb structures with high capacity, high...
  • Polypipe Civils: Polysewer inspection chambers
    Polysewer inspection chambers
    Polypipe Civils
    Polysewer inspection chambers are an extension of the existing Polysewer range of pipes and fittings from Polypipe. They are available in adoptable and non-adoptable versions, and suitable for burial depths of up to 3m and...
  • Althon: H28C headwall range, backwall heights 1250, 1650, 2130mm
    H28C headwall range, backwall heights 1250, 1650, 2130mm
    Althon
    The H28C headwall is a sectional structure with rebated joint, assembled on site around the drainage pipe. It is suitable for plastic pipes up to and including 1650mm or PCC pipes up to and including 1500mm. It will also...
  • ELIQUO HYDROK: SUDScreen™ surface water separation and screening
    SUDScreen™ surface water separation and screening
    ELIQUO HYDROK
    A SUDScreen™ unit can be used to protect downstream water courses. When installed upstream of any SuDS system, the SUDScreen™ unit protects the receiving system from fine solids and debris that would otherwise accumulate...
  • Althon: Althon CH 375 high capacity GRC drainage channel 184l/m
    Althon CH 375 high capacity GRC drainage channel 184l/m
    Althon
    Althon CH 375 precast GRC drainage channels. Trapezoidal profile. High capacity of 184 l/m. Channel width 381mm. Overall dimensions L1500mm x W500mm x D740mm. Choice of 9 lids for C250 and D400 loadings. Suitable for large...