Underground Services
Directional Drilling and Underground Services throughout the South Island
At Welshy Contracting, we can install any fibre optic or power cable underground with the help of our advanced directional drilling equipment. This method allows for precise installation with minimal disruption to the surrounding property — perfect for residential, commercial, or roadside works.
When drilling isn’t an option, our chain trenchers can create neat, tidy trenches even in challenging ground conditions, ensuring a clean and efficient installation every time.
Underground Services Options:
Welshy Contracting provides complete underground installation solutions for fibre optic and power cables, using specialised equipment to ensure accuracy, safety, and minimal disruption to the surface.
Our underground service capabilities include:
Installation of fibre optic and power cables
Chain trencher for precise, tidy trenching
Hydrovac truck to safely locate underground hazards and assist with trenching
GPR machine and locators to identify and mark out existing power, phone, water, and sewer lines
Rock saw trenching for hard ground conditions
Grundomat boring for short, trenchless installations
Fibre jointing, termination, and commissioning
2-ton diggers for open trenching in confined areas
Traffic management and health & safety compliance
Full reinstatement after installation, including topsoil, asphalt, chipseal, or concrete finishes
With the right tools, technology, and trained team, Welshy Contracting delivers efficient and reliable underground installations — completed safely and to the highest standard
Specialists in underground fibre and power installation — from drilling to reinstatement
Our team can drill under footpaths, berms, and road crossings using precision directional drilling equipment to install fibre optic and power cables safely and efficiently. When open trenching is required, we have a fleet of excavators ranging from 2-ton to 23-ton ready to handle any scale of job.
For larger projects, our bulldozer and mole plough provide an effective solution for laying long runs of pipe or cable with minimal surface disturbance.
At Welshy Contracting, we can deliver the full package for your underground fibre installation — from drilling, jointing, and cable hauling to pole work and full reinstatement in chipseal, concrete, asphalt, or grass.
Health and Safety is a top priority on every project. All our team members hold Site Safe and First Aid certifications, with a qualified STMS on site to manage any Traffic Management requirements. Every operator is licensed and endorsed with WTC, WTR, and competency certificates, ensuring all work is completed safely, compliantly, and to the highest quality.
