Cured in Place Pipe (CIPP) patch repairs are a cost effective way to repair isolated defects within a length of sewer / drain. The patch is a short sleeve of glass-fibre reinforced matting impregnated with silicate resin. The repair is attached to a packer which is winched through the pipe and inflated over the defect. The patch is cured in place and bonds to the existing pipe-work restoring the structural stability of the original pipe. OnSite have used this accepted and approved method of repair with all major UK water and sewerage companies (WASCs).


Key Features

  • “No-Dig” structural repair to an isolated defect within a full length of pipe
  • Cost effective and non-intrusive
  • Repairs pipe diameters 100mm – 1200mm
  • Minimal impact or disruption to public highways.
  • Small carbon footprint



  • Domestic household sewer & drains
  • Water company main sewers & drains
  • Culverts / piped watercourses
  • Industrial plants



  • Affordability
  • No excavation required
  • Fast installation
  • Restores pipes structural integrity
  • Prevents water ingress at the point of repair
  • Prevents root ingress at the point of repair



  • WRC approved
  • United Kingdom Society for Trenchless Technology (UKSTT) – Renovation Award: Small Project Winner 2011
  • International Society for Trenchless Technology (ISTT) – No-Dig Award: Best Product 2009
  • South Staffordshire PLC – Outstanding Performance Award: Best Product 2009
  • Severn Trent Water – Engineering Awards: Sewerage Category Winner 2006