Quality no-dig drain repair without the damage of excavation

Compared to traditional excavation of sewers and drains, drain relining creates minimal surface disruption and less inconvenience for all parties involved. At NRC, we believe no-dig technology is the future of drain repair.


Why choose trenchless technology?

  • It’s fast: A lining is bonded to the inside of the existing pipe, so it is strengthened without having to excavate
  • It’s cost effective: There’s no need to excavate and replace the damaged outer pipe; all work is carried out with minimum disruption
  • It’s flexible: Drain relining can be carried out on drains and pipes large to small; simply contact us to find out more


UV Lining

UV lining process is the fastest and most cost-effective way to repair a collapse or damaged pipe. Unlike most cured-in-place-pipe (CIPP) liners, the UV system is cured by ultra-violet light rather than hot water. Not only does this allow much quicker installation and curing, but it also avoids any risk of pollution from the disposal of contaminated water.

The process involves inserting a Glass Reinforce Polyester (GRP) liner impregnated with a special resin into the sewer or drain. As the liner is inserted into the pipe, it is pulled into place and then inflated with free air. A UV Light Train with built in CCTV is pulled through to check the positioning and identify any obstructions. Finally the UV lights are ignited causing the resin cure and effectively creating a new pipe within the pipe and restoring the integrity of the drain or sewer.


CIPP full length drain lining

Cured In Place Pipe (CIPP) or UV lining is a unique trenchless technology used to repair existing damaged sewers and drains. CIPP is a jointless, seamless, “pipe within a pipe” with the capability to rehabilitate sewers and drains ranging from 100 to 1200mm in diameter. Drain relining is quite simply the fastest, least disruptive and most cost-effective drain repair solution.

CIPP liners are designed to be independently structurally strong, not relying on the host pipe for any structural strength contribution.


How does drain relining work?

The no-dig technique involves inserting a resin-impregnated liner into the pipe using air or water pressure. The material then bonds to the inside of the damaged pipe and hardens through the curing process, thus creating a new pipe within the existing one. Lateral connections on the relined section can easily be reinstated via a robotic lateral cutter.

Drain Relining & UV Lining Case Studies

Drain Relining & UV Lining Industry Experts