HGM Construction has delivered reliable power infrastructure services across Canterbury for over 18 years, building long-standing relationships with leading network providers.

We specialise in power pole replacement and associated works — from hole excavation and drilling to pole removal and installation. No site is too challenging. Our team is equipped to handle difficult terrain and restricted access using the right equipment for the job, including excavators, four-wheel-drive crane trucks, crawler cranes, and helicopters.

When multiple sites need to be completed in a single day, our depth of equipment and experienced crews means network providers can count on us to deliver — at scale, without compromise.

What we deliver

Pole replacements

  • Steep site and tight access experts
  • Hard rock drilling capacity
  • Casing systems for pole depths below water table

New & existing line builds

  • Full civil and mechanical services for new line builds
  • Full civil and mechanical services for existing line rebuilds

Reinforced concrete pole foundations

  • Full cased and uncased reinforced concrete foundations
  • Mechanical and craneage for new pole erections

Mechanical anchors for stays

  • Mechanical anchor installation and testing for temporary and permanent stays

Specialised equipment

  • Experienced team and systems in place for managing helicopter sling operations for pole replacements and conductor stringing
  • Diverse fleet of crane trucks (including 4wd), mobile and crawler cranes
  • Excavator mounted vibros and crane slung vibros for driving casings

Network maintenance

  • Access track construction and maintenance for transmission and power poles
  • Maintenance in riverbeds including rock armouring around poles and foundations
  • Mulching of vegetation on access tracks and around pylons and poles

Case studies

Completed pole installation for power infrastructure and transmission line construction in a rural landscape. The image shows overhead infrastructure, tower installation, civil construction and utility infrastructure delivered by civil contractors.
Selwyn River Crossing Poles

Selwyn River Crossing Poles

Safety comes first

How we support tenders

Quality Assurance Management System

Health & Safety Systems

Environmental Management System

Sustainability Policies and Plans

A focus on broader outcomes

Our full range of services