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Our Capabilities

We offer a diverse range of civil construction capabilities. We consistently align ourselves with industry best practice and guarantee the delivery of client-focused construction solutions.

Water Pipelines & Infrastructure

DM Civil is a pipeline specialist with a diverse project history in a range sizes and materials in water pipelines and infrastructure projects across Western Australia since 1976.

Oil, Gas & Energy Pipelines & Infrastructure

DM Civil is one of Western Australia’s most experienced and recognised civil contractors and we consistently demonstrate our ability to construct pipelines anywhere.

Wastewater Pipelines & Infrastructure

DM Civil is a pipeline specialist with a diverse project history in a range sizes and materials in wastewater pipelines and infrastructure projects across Western Australia since 1976.

Trencher Hire Services

DM Civil's has extensive experience with trenching machines in a variety of ground conditions offers flexible, reliable and cost-effective alternatives over traditional excavation methods.

Trenchless Technology

In 1982, DM Civil introduced trenchless technology into our range of pipe installation, offering a flexible, cost-effective solution with minimal ground disturbance, from DN150 to DN1600 sizes in all ground conditions.

HDPE Plastic Welding

DM Civil personnel are trained in handling and installing HDPE butt-welded pipelines up to DN1200 and use electrofusion welding for restricted space water and gas connections. As a Tier 1 Water Corporation Contractor and Critical Services Panel provider, we service both internal projects and external clients.

Concrete Construction

DM Civil's concrete division complements our civil construction crews, enabling us to offer comprehensive turnkey services for stormwater, civil, and building projects with assured quality and scheduling control.

Mining Infrastructure

Since 1985, DM Civil has been a key player in Western Australia's mining sector, offering turnkey infrastructure solutions, owning equipment, employing a stable workforce, and ensuring compliance with rigorous mining standards.

Land Development

DM Civil, as primary contractor, partners with Western Australia’s most high-profile consulting engineers and land development companies to achieve their vision of sustainable communities. We provide all civil works for residential and industrial projects.

Your partner in civil construction

DM Civil is a privately owned company established in 1976 by Reg Toohey, Tony Spanjers and his late brother Eric Spanjers. Since then, we have grown to be one of Western Australia’s most trusted and respected civil contractors.

Projects

Welshpool Station HP Gas Pipeline Relocation

June 2026

DM Civil’s depth of experience in gas pipeline construction in difficult areas was sought by ATCO Gas to deliver this difficult project. Despite the difficulties faced, and increased scope of works, DM Civil delivered on program.

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Latest News

Big Dig Success — DM Civil digs deep for youth mental health

October 2025

For almost 50 years, DM Civil has delivered infrastructure projects for mining clients, municipal authorities, and private developers across Western Australia.

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Our Partners

At DM Civil, we’re all about teamwork and partnerships! We thrive on collaborating with industry leaders, tapping into their expertise to craft innovative solutions that make a difference for us all. With clear communication and shared goals, we build genuine and lasting relationships that bring out the best in everyone.

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Your Trusted Civil Engineering Partner

Our team is eager to chat about your needs and craft tailored solutions for your success.