Specialist civil infrastructure across the three waters.
From water mains to wastewater systems and stormwater management, we deliver reliable infrastructure solutions that keep communities connected and projects moving forward.
Family-owned. North Island wide.
Built on experience. Driven by quality.
Extending the life of essential infrastructure.
Maintaining underground assets is just as important as building new ones. We provide renewal and maintenance solutions that minimise disruption while improving network performance.
Asset renewals
Pipe replacements
Fault repairs
Reactive maintenance
Scheduled maintenance
Emergency response
Network upgrades
Reliable water networks built for long-term performance.
We construct, renew and upgrade potable water infrastructure for councils, developers and contractors. From new subdivisions through to live network upgrades, we deliver dependable solutions designed to perform for decades.
Water main installation
Water renewals
New subdivision reticulation
Valve installations
Hydrant installations
Service connections
Pressure testing
Commissioning
Safe, compliant wastewater solutions.
Wastewater infrastructure demands accuracy and experience. Our team delivers gravity and pressure wastewater systems with careful attention to compliance, environmental responsibility and long-term reliability.
Certified polyethylene pipeline specialists.
Polyethylene pipe systems require precision installation and certified welding techniques. We deliver high-quality PE installations that meet industry standards across water and wastewater applications.
Butt fusion welding
Electrofusion welding
PE pipeline installation
Pressure mains
Testing
Commissioning
Managing water where it matters most.
Effective stormwater systems protect communities, infrastructure and the environment. We construct robust drainage networks that perform under demanding conditions while meeting project specifications.
Stormwater pipelines
Culverts
Catchpits
Manholes
Headwalls
Detention systems
Drainage upgrades
Road drainage
Let's Build Infrastructure That Lasts.
Whether you're planning a new development, upgrading existing assets or responding to urgent infrastructure needs, DMK Contracting has the experience to deliver dependable results.
Get in touch to discuss your next project.