Installer of the iMPREG GL01, GL13 & GL16 UV Liner

Onsite Rail Ltd
CT/005/0919 - UNDER REVIEW


To assess the procedures and working methods used by Onsite Rail Ltd for the installation of the iMPREG GL01,GL13 and GL16 UV cured-in-place (CIPP) liner for gravity drains and sewers as defined in WRc Approved™ Assessment Schedule PT/367/0915 (Revised January 2018). 


Onsite Rail Ltd provide a service to install the iMPREG GL01, GL13 and GL16 UV liner in accordance with iMPREG installation manual(2) for pipe diameter ranges:

  • Circular: 150 mm to 1600 mm
  • Egg profile: 200 mm x 300 mm (252 mm) to 1000 mm x 1500 mm (1262 mm)

Full details can be found in the Assessment Schedule opposite.

Approval period

30th September 2019 - 30th September 2021

Click on certificate to enlarge

View Assessment Schedule.