Delivery Focused, Driven By Experience
Prost Group is a specialist civil construction and pipeline services company delivering sewer, stormwater, and water infrastructure works across Australia. Contractor-led, delivery-focused, and built on 35+ years of hands-on experience.
From Family Business to Industry Leader
What started as a specialist niche business has grown into a multi-disciplinary civil infrastructure provider with over 50 full-time staff operating across Victoria and Queensland. Prost Group operates at the intersection of hands-on contracting and practical engineering, with a strong focus on safety, constructability, and reliability on live sites.
Our construction crew divisions service Melbourne's outer growth corridors and regional Victoria, including the Bendigo and Barwon regions. We work directly with water authorities as principal contractors and deliver complex projects for Tier 1 and Tier 2 civil builders across Australia.
Today, Prost Group installs over 60 kilometres of pipeline in any 12-month period, with full in-house turn-key capabilities that set us apart from the competition. No outsourcing. No compromises. Just reliable delivery.
35+
Years Experience
50+
Live Sewer Connections & Main Extensions Annually
70 km+
Pipeline Annually
What Sets Prost Group Apart
We control every phase of the project lifecycle — from engineering concept through to testing, drain cleaning, and pipeline inspections. Everything stays under one roof.
Total In-House Capability
Engineering, construction, testing, maintenance, drain cleaning, CCTV, and pipe rehabilitation. All under one company with no outsourcing required.
Extensive Modern Fleet
We own and operate all our machinery from 1.7 to 60-ton excavators, plus a full range of trench shoring systems and purpose-built safety devices.
Safety & Compliance
Triple ISO certified (9001, 14001, 45001) and accredited with all major water authorities. Safety is non-negotiable on every project.
Experienced Personnel
15+ year experienced SC2 accredited key site personnel and dedicated crews for every project. Our people are our greatest asset.
Multi-State Operations
Operating across Victoria and Queensland with construction crew divisions servicing Melbourne's outer growth corridors, Bendigo, and Barwon regions.
In-House Fabrication
Purpose-built plant mechanical and steel fabrication facilities, certified shoring systems, and pioneering safety devices designed in-house.
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Accredited Across the Industry
Prost Group maintains the highest standards of quality, safety, and environmental management. Our certifications are third-party audited annually, ensuring continuous compliance and improvement.
ISO 9001:2015
Quality Management System
ISO 14001:2015
Environmental Management System
ISO 45001:2018
Occupational Health & Safety Management
Water Authority Accredited
Preferred contractor for Melbourne Water and major retail agencies
Meet the Leadership Team
Experienced professionals who understand civil construction from the ground up. Our leadership team brings decades of hands-on industry expertise to every project.
Patrick Prostamo
General Manager
Thomas Prostamo
Director
Ready to Discuss Your Next Project?
Partner with a contractor-led team focused on safety, constructability, and reliable delivery. Book a consultation for your upcoming project, live work, or tender.