CIVIL CONSTRUCTION & INFRASTRUCTURE

Complete Water Infrastructure

Ongrade delivers reliable, high-quality civil construction and infrastructure services for council, commercial and residential development projects across Canterbury. Our experienced civil contractors build essential infrastructure that supports growing communities, with a focus on safety, accuracy and long-term performance. From new installations to complex upgrades, we bring the right people, equipment and planning to all of our construction projects.

Whether it’s water reticulation, stormwater systems, wastewater treatment or specialist structures, we work closely with clients, consultants and sub-contractors to achieve results that stand the test of time.

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Our Civil Infrastructure Capabilities

Water Reticulation

Installation and renewal of water reticulation systems, including mains, laterals, and connections, completed to council and industry standards.

Stormwater Systems

Construction of durable stormwater drainage systems designed to manage runoff, reduce flooding risk and support sustainable site development.

Sanitary Sewer

Delivery of wastewater reticulation systems and pipelines, installed with precision to ensure reliable flow, compliance, and long-term performance.

Manholes

Construction and installation of manholes for water, wastewater and stormwater networks, built for easy access, durability, and safety.

Wet Wells

Fabrication and installation of sanitary sewer pump stations and wet wells for water, wastewater and stormwater solutions, designed for safe operation and efficient maintenance.

Service Trenching

Accurate trenching for power, communications, gas, water treatment and multi-service corridors, carried out with care to protect surrounding assets.

Culverts and Headwalls

Installation of culverts, headwalls, and associated structures to manage water flow, support roading and protect land stability.

Water Treatment Plants

Civil works to support water treatment plants and wastewater treatment plants, including pipework, structures, foundations, and site services.

Pump Stations

Construction of pump station infrastructure for water and wastewater networks, ensuring reliable operation and compliance with council requirements.

APPROVED DRAINAGE & WATER INSTALLERS FOR:

  • Christchurch City Council
  • Waimakariri District Council
  • Selwyn District Council
  • Hurunui District Council

READY TO DISCUSS YOUR NEXT CIVIL PROJECT?

Contact our team to request a quote or to book a site visit.

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A Fully Accredited Team Committed to Best Practice

  • Comprehensive Health and Safety programme
  • ACC Workplace Safety Management Practices Secondary Accreditation
  • Full qualifications in water reticulation, civil infrastructure and residential drainage
  • CCC authorisation for water supply installation and drainlaying
  • SiteWise Gold status
  • Licence endorsements including classes 1–5, WTR and DG
  • First Aid certified crew across all projects

OUR SERVICES

Civil Construction & Infrastructure

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Earthworks & Excavation

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Roading & Street Scapes

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Residential & Commercial

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