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Pipe Relining – The Future of Pipeline Rehabilitation

Semtex Trenchless Solutions

At Semtex Trenchless Solutions, we specialize in advanced trenchless pipe rehabilitation, offering UV-Cured-In-Place Pipe (UV-CIPP) and Spray-In-Place Pipe (SIPP) solutions. Our services ensure minimal disruption while extending the lifespan of critical pipeline infrastructure for residential, commercial, council infrastructure, municipal, and oil & gas clients.

Partnering with Industry Leaders

We work with the world's top UV GRP liner manufacturers and epoxy resin suppliers, ensuring the highest quality materials for all pipe rehabilitation projects. For potable water pressure applications our AS/NZS4020-approved resins and liners meet strict standards. We also partner with the world’s best brands and manufacturers, using cutting-edge curing technology and high-performance materials to provide custom solutions that meet the highest industry standards.
Specializing in high-performance relining solutions for oil and gas pipelines.
UV-cured CIPP liners for long-term durability.
UV curing supplier, providing robust solutions for pipe rehabilitation.
UV CCU machines and light train systems for high-performance UV curing.
Advanced trenchless technology and relining equipment.
Specialized spray equipment with custom in-pipe sprayers for epoxy and polyurea coatings.
Specialized coatings for spray-in-place pipe rehabilitation.
Industry-leading pipe rehabilitation solutions using innovative trenchless technologies.

Cured-In-Place Pipe (CIPP) Relining

CIPP technology allows us to install a seamless, high-strength liner inside existing pipelines,restoring functionality and preventing leaks without the need for excavation. 

Curing Methods:

  • UV Curing: UV light is used to rapidly cure GRP liners, offering faster installation times, increased strength, and enhanced durability.
  • Steam Curing: Steam is introduced to cure the liner efficiently, providing a reliable and uniform hardening process.
  • Hot Water Curing: Hot water is circulated through the liner, accelerating the curing process for larger-diameter pipes.
  • Ambient Curing: Used for smaller diameter pipes and shorter lengths, this method relies on ambient temperatures to cure the liner without additional heat sources.

Features & Benefits:

✔ Fast Installation – Various curing methods ensure project efficiency.
✔ Extended Lifespan – 50+ year durability.
✔ Eco-Friendly – No excavation required.
✔ Versatile – Works for sewer, stormwater, and industrial pipelines.

Applicable for: Municipal networks, industrial wastewater, and culverts.

Spray-In-Place Pipe (SIPP) Relining

SIPP involves applying a protective epoxy or polyurea coating inside pipes, sealing cracks and preventing corrosion.

Features & Benefits:

✔ No Diameter Reduction – Thin yet strong coating.
✔ Safe for Drinking Water – AS/NZS4020-approved resins.
✔ Ideal for Small Pipes – Works in tight spaces.

Applicable for: Water mains, industrial systems, and commercial plumbing.

Advanced Repair Techniques

Smart Lock Stainless Steel Sleeves

For localized pipe damage, we use Smart Lock sleeves, which instantly restore pipe integrity without curing time.

FFRP ASOE Pipe Liners

We offer FFRP ASOE pipe liners, an innovative solution for pressure and gravity pipe rehabilitation. These liners provide high-strength reinforcement while maintaining flexibility, ensuring a long-lasting solution for damaged infrastructure.

Epoxy Foam Infiltration Sealing

For groundwater infiltration, we apply high-strength epoxy foam, ensuring a watertight seal in areas where other methods may not be viable.

Design Life & Compliance

We provide customized solutions with design life options ranging from 25 to 100 years, meeting the most stringent international standards:

  • ASTM F1216-16 – CIPP rehabilitation for sewer and stormwater pipelines.
  • ASTM F1743 – Pulled-in-place installation of cured-in-place liners.
  • AS/NZS 2566 – Structural design for buried flexible pipelines.

Get in touch

  • Call us today  022 363 9400 or 022 194 5892
  • Email us: This email address is being protected from spambots. You need JavaScript enabled to view it.
  • Service Areas: Palmerston North, Hawkes Bay, and surrounding regions.

Choose Semtex Trenchless Solutions for innovative, long-lasting,
and trenchless pipe rehabilitation solutions!