OUR SERVICES
WHAT WE DO - HOW WE DO IT - AND HOW WE CAN HELP YOU
DEWATERING
Horizontal Bored Dewatering Drains.
Installation of Slotted PVC Drain Pipes.
HDD & HPD
Horizontal Directional Drilling and Horizontal Pit Drilling for...
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Gravity Wastewater
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Gravity Stormwater
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Rising Mains
DIRECTIONAL DRILLING
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Water mains.
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Power ducts.
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Comms ducts.
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Gas Main
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Pump Lines
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CCTV
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Irrigation Pipes
DRAINAGE
RESIDENTIAL
RURAL
COMMERCIAL
PUBLIC / CIVIL
Horizontal Directional Drilling (HDD)
Horizontal Guided Pit Drilling (HPD)
On - Grade Gravity % Drilling For Waste Water and Storm Water.
DRILLING FOR DRAINAGE
When installing drainage—particularly under driveways, roads, landscaped areas, or in tight-access sites—a directional driller provides a smart, efficient alternative to traditional excavation.
Directional Drilling has several advantages for drainage requirements:
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No Disruption to Surface Structures
Avoid breaking up concrete, driveways, or established landscaping. Directional drilling is a trenchless method for the installation of drainage pipes underneath ground with minimal impact to the surface.
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Tight Access? No Problem
For properties with limited access, steep gradients, or set-back restrictions, a compact directional drill rig or flexi drill can operate from a confined area while completing the job with precision.
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Precision & Accuracy
Drainage requires exact fall and placement to ensure proper flow. A directional driller can achieve the necessary grade with guided accuracy, avoiding pooling or backflow issues.
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Faster and Cleaner Installations
No open trench means less mess, faster completion times, and no need for major reinstatement works post-installation.
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Long-Term Reliability
Directionally drilled drainage systems are less likely to be disrupted by ground movement or surface activity, making them a long-lasting solution for stormwater or subsoil drainage.
PIT DRILLING
Pit drilling is a method of horizontal directional drilling where the drill rig works from within an excavated pit rather than from ground level.
In practice, it means:
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A pit is dug at the start and/or end of the drilling alignment, usually deep enough to match the grade or depth of the pipe or service being installed.
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The drill rig is positioned in the pit, which allows the entry point to be lower than surface level.
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This setup is used when you need to start drilling at a specific depth without having to drill a steep angle from the surface, or when space is too tight for a standard surface setup.
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Common reasons include installing stormwater pipes, dewatering drains, or utilities under roads, rail, rivers, or structures where you can’t start the bore from surface grade.
It’s basically the same as the directional drilling process— pilot bore, reaming, and product pullback.....
But starting inside a hole so your drill rods are already at the right depth before you even start
DEWATERING
DRAINS
Drilled Dewatering Drains can be a highly effective solution for in-ground and on-ground water.
HDD allows us to tap into underground springs without disturbing the natural landscape, eliminating the need for open trenches. This method is particularly useful for springs in hard-to-reach areas or when environmental preservation is a top priority.
Here’s a brief overview of the process:
We use our Specialised Portable Earth Drill to drill the drains. The horizontal bore hole is drilled uphill from a downhill setup and installs a slotted pvc pipe into the hole allowing water to drain continuously via gravity. This system operates around the clock and is unaffected by power outages during heavy rains, as no pumps are required.
Additionally, this method allows air to circulate within the pipes, helping to dry out the surrounding ground. This can stabilize slips and/or dry out areas under concrete basements, eliminating issues like cold, musty smells.
By drilling multiple drains from a single setup position, we can achieve extensive coverage under a slip or building, diverting water to a single catchpit.
OVERVIEW
At Drill Rite NZ Ltd, we specialise in trenchless drilling and drainage solutions that protect properties from water damage while minimising disruption to the surface.
Using advanced techniques such as Horizontal Directional Drilling (HDD), Horizontal Pit Drilling (HPD), and Drilled Dewatering Drains, we deliver precise, long-lasting systems for managing stormwater, wastewater, and groundwater.
From subdivision gravity stormwater, gravity wastewater, stabilising slips and drying out basements to installing water mains, power ducts, gas lines, and irrigation pipes, our team works across residential, rural, commercial, and civil projects.
Every installation is guided with accuracy to achieve the correct grade and reliable flow, ensuring long-term performance.
Whether your site has limited access, sensitive landscaping, or challenging ground conditions, Drill Rite NZ provides smart, efficient, and environmentally considerate solutions to get the job done right.