Excavation and site works sit at the heart of almost everything HGM Construction does and with decades of experience across a wide range of project types, it’s a capability that runs deep throughout our business. If it’s tricky, tight, remote or steep we’re built for complex construction projects.

Backed by our team of highly skilled, professional operators and ground crew, we have the experience to get the groundwork completed- on time and to the specification.

We operate across Canterbury and throughout the South Island, mobilising the appropriate equipment for the site — from compact machinery on confined sites through to large plant for larger scale site preparation and earthworks. Our experience extends to notifiable works and other project complexities such as contaminated ground or environmentally significant sites such as national parks and waterways.

Whether excavation and site works is the primary scope or a critical component of a larger project, clients can count on HGM Construction to deliver ground preparation that meets the demands of what comes next.

Case studies

Excavation and retaining walls construction on a steep coastal site overlooking the shoreline, with civil contractors and machinery working beside scaffolding and safety fencing. This image highlights civil construction, siteworks, foundation construction and slope retention for a challenging residential project.
Scarbrough Road

Scarbrough Road

Excavator-mounted construction drill working in misty hillside conditions for adventure infrastructure and civil construction works. The image shows drilling services, rock anchors, soil nails, slope retention and ground stabilisation by civil contractors.
Christchurch Adventure Park

Christchurch Adventure Park

Excavator and rope access worker installing rockfall mesh and fencing across a steep roadside slope for erosion control. This civil construction project includes slope retention, ground stabilisation, site preparation and work on a restricted coastal site.
Cave Terrace Slope Erosion Mitigation

Cave Terrace Slope Erosion Mitigation

Safety comes first

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Quality Assurance Management System

Health & Safety Systems

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Sustainability Policies and Plans

A focus on broader outcomes

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