Directional Drilling & Hydro Excavation

Introducing Xtreme Contracting Ltd: Your Premier Partner in Horizontal Directional Drilling (HDD) Solutions throughout Hawke's Bay. Renowned for our unparalleled success and unwavering commitment to client satisfaction, we stand as the forefront HDD firm in the region.

With a proven track record in trenchless engineering, our expertise is second to none, offering innovative solutions tailored to your unique needs. From navigating challenging terrains to overcoming obstacles like rivers, large structures, wetlands, and protected areas, our advanced HDD technologies pave the way for efficient installations with minimal disruption.

Our comprehensive directional drilling services cater to a diverse range of applications, including the installation and upgrade of fibre, water mains, electricity, stormwater and wastewater. Utilizing state-of-the-art machinery and techniques, we excel in underground services installation. Trust Xtreme Contracting Ltd for precision, efficiency, and excellence in every project.

How Horizontal Drilling Works

Directional drilling and trenchless technologies are gradually replacing traditional open-cut excavation. HDD enables quick connections of pipes and other underground amenities on sites where trenching is not feasible. The subsurface bore paths help to drastically reduce public disturbance or damage to existing buildings or natural resources.

In underground drilling, a surface-mounted directional drilling rig is used, which can push, rotate and pull strings of steel drilling rods. The drill string is directed along a pre-determined bore path, i.e.; from the drilling rig to an exit pit hole. From here, the steering head is released and replaced by a hole opener, which is also called a reamer. The conduit is now directly linkable behind the hole opener through a swivel.

Horizontal drilling can be used to drill multiple boreholes from the same rig. This technology was a turning point for water mains and pipelines, installing sewers, upgrading power cables, installing new gas cables, and storm drains. Underground boreholes can be a 10 meter or deeper, depending on the project's topography. HDD technology is compatible with pipes made of different materials (steel, polyethylene, PVC) and later joined into one continuous length.