Experts in drainage
Three waters reticulation
We install the full spectrum of underground services required for modern communities. Our certified drainlayers handle deep sewer reticulation, potable water mains, and complex stormwater systems—installing pipework ranging from 100mm to 1200mm+ in diameter using PVC, PE, and concrete.
Deep drainage & dewatering
We specialise in high-risk, high-water-table environments. Using engineered well-point dewatering systems and trench shields, we execute deep excavations safely in unstable ground conditions, ensuring dry, stable trenches for precision pipe laying.
Pump stations & treatment
We construct the critical control structures that keep networks flowing. Our teams build complex lift stations, install large-diameter manholes (up to 3000mm), and construct engineered wetlands and retention basins to manage stormwater quality and flow rates sustainably.
Upper Fraser Hydro Power Scheme
Greymouth CBD Stage 1 Renewal
Pareora Pipeline Renewals Section 3
Courtenay Drive
Dairy Creek Irrigation Scheme
Amuri Irrigation Scheme Culverden
Oceania Dairy Stage 2 Civil Works
FAQ
Have questions about our commercial services? Here are the answers to the most common things clients want to know before work begins.
Yes. We employ a team of PGDB registered certifying drainlayers who oversee all sanitary and drainage works to ensure full compliance with New Zealand Building Code and local council standards.
Yes. We are experts in dewatering. We use well-point systems and sheet piling to lower groundwater levels, allowing us to install deep infrastructure safely and accurately in saturated ground conditions.
We have the plant and expertise to install everything from small diameter laterals to massive DN1200+ concrete mains and large-scale box culverts for major infrastructure projects.
Yes. We manage the full QA process, including M7 pressure testing, chlorination for potable water, and CCTV inspections for gravity lines to verify the integrity of the system before handover.
Yes. We are experienced in deep excavation for sewer mains, utilising trench shields and benching to ensure the safety of our crews while connecting to existing council networks.
