Delivering civil infrastructure for Territorian conditions
Sage Civil Pty Ltd are a Darwin-based civil construction company delivering road, drainage and subdivision infrastructure across the Top End.
Our Services
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We deliver construction and rehabilitation of sealed and unsealed roads across rural and urban areas. Experience includes subdivision roadworks, access roads, internal roads for public facilities and intersection upgrades under live traffic. Works are staged to maintain access, manage safety and ensure pavement performance in Territory conditions.
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We deliver bulk earthworks packages for infrastructure and development projects, including detailed trimming and formation works to specification. Our in-house plant fleet supports efficient cut-to-fill operations, compaction control and material handling across multiple concurrent work fronts.
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We construct integrated drainage systems essential to long-term road and subdivision performance. Our works include reinforced concrete box culverts, stormwater pipes and pits, floodways and open drainage systems. Drainage sequencing and environmental controls are planned to maintain site stability during wet season conditions.
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Our capability extends to specialised pavement construction and rehabilitation works requiring controlled compaction, material compliance and specification-driven delivery. These works demand precision, quality assurance and disciplined site management.
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We deliver full civil packages for subdivisions and public infrastructure, including works in operational sites such as schools and emergency services. Our approach integrates traffic management, staging and coordination to minimise disruption while maintaining safety and compliance.
Who are we?
Operating from our Pinelands facility, we deliver high-quality civil infrastructure across Greater Darwin for government, commercial and private clients.
As a majority Indigenous and female owned, family operated business certified by NTIBN and Supply Nation, all of our people, plant and operations are Territory based. With our own Shoal Bay quarry and a strong local network, we provide reliable, efficient project delivery built for local conditions.
Memberships & Accreditations

