Specialised civil construction services for water, wastewater and essential infrastructure across NSW.

Delivering projects for Tier 1 and Tier 2 contractors, utilities and government agencies, safely and reliably.

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Our qualifications

ISO 9001:2015
Quality Management Systems

ISO 45001:2018
Occupational Health & Safety Management Systems

NSW Contractor Licence #353863C

NSW Government Certified Contractor - Civil Works SCM0256

Sydney Water
Prequalified Contractor

Central Coast Council
Prequalified Contractor

WHAT WE DO

Specialised civil construction services for essential infrastructure.

Water & Wastewater Treatment Facilities 

Delivering upgrades, renewals and new infrastructure for treatment plants and resource recovery facilities

Pump Stations & Network Infrastructure

Construction and refurbishment of sewer and water pumping assets and associated infrastructure

Reservoirs, Tanks & Access Structures

Specialists in confined space construction, maintenance and rehabilitation of critical storage assets

Rehabilitation, Renewal & Protection Systems

Extending asset life through structural repairs, rehabilitation works and advanced protection solutions.

CAPABILITIES

Tailored construction & maintenance solutions, delivered in house.

Concrete construction & repair

In-situ and precast concrete infrastructure, structural repairs, remediation and strengthening.

Tank sealing & jointing systems

High performance jointing and sealing for water & waste retaining structures.

Access & asset rehabilitation

Access Hatches, ladders, platforms, covers. Asset repair, rehabilitation, upgrades and renewals.

Underground infrastructure

Stormwater, sewer and utility installation, maintenance & upgrades.

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PROJECTS

Let our work do the talking:

  • Glenfield STP Biosolids Odour Control Unit

  • Liverpool STP Primary Effluent Pumping Station

  • Fairfield Sewer Pump Station

  • Shellharbour STP Biofilter Chambers

  • North Rocks Manhole Access Improvements

  • Punchbowl Manhole Access Structure

  • Quakers Hill Sewer Pump Station

  • Potts Hill Reservoir

  • Clovelly Pocket Park

  • North Head WRRF Fine Screen 6 Renewal

  • Orchard Hills WFP - Lagoon 3 Desilting

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WHY GRAYMADE

A specialist contractor for complex water and wastewater infrastructure.

Graymade serves Tier 1 and Tier 2 contractors, utilities and government agencies across NSW, with core expertise in complex water and wastewater infrastructure, from treatment plant construction to asset rehabilitation.

We build long term partnerships through transparent communication, agile project delivery and a culture of continuous improvement.