+44 (0)1344 397777 www.riw.co.uk

RIW has been a generic term for waterproofing solutions for over 90 years; our name even stands for ‘Remember It’s Waterproof’ from an old ad slogan in 1921. RIW offers the most expert technical advice for commercial waterproofing and damp proofing applications above, below and at ground level. From basement tanking, podium decking, raised access floors and plant rooms to lift pits and movement joints – RIW provides the best design advice on your waterproofing strategy. We provide complete structural waterproofing systems, including liquid and sheet applied solutions, drained cavity systems and cementitious products. If you need technical advice on superstructures, damp proof membranes, decks or roofs, call RIW. Our in-house structural engineers and technical advisors offer a full consultation and design service including preparation of sectional details, approval of drawings, site inspections and ongoing site support. We also work closely with a nationwide network of Specialist Waterproofing Contractors who can provide fully guaranteed installation of our systems. RIW provide waterproofing solutions from basement to roof.

Latest products

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Trade names

  • Cavity Drain
  • Cementfill FC
  • Cementfill HB
  • Cementflex
  • Cementjoint
  • Cementseal
  • Double Drain
  • Flexiseal
  • Heviseal
  • LAC
  • Liquid GM
  • RIW Toughseal
  • Sheetseal
  • Sheetseal 9000
  • Solaflect
  • Structureseal
  • Tilesafe
  • Toughseal
  • Waterstop