
Core Services
Earthworks
Bulk excavation, cut and fill, land clearing, and site leveling for residential and commercial developments. We operate a fleet of modern earthmoving equipment to handle projects of any scale.
From residential subdivisions to commercial developments, Cornish Civil Construction delivers reliable earthworks, drainage, road works, and underground services across the Perth metropolitan area.

Based in
Leeming, WA
What We Do
Comprehensive civil construction services for residential subdivisions and commercial developments across the Perth metro area.

Core Services
Bulk excavation, cut and fill, land clearing, and site leveling for residential and commercial developments. We operate a fleet of modern earthmoving equipment to handle projects of any scale.

Core Services
Complete site preparation including clearing, grubbing, stripping, and compaction. We ensure your site is level, stable, and ready for the next stage of construction.

Core Services
Stormwater drainage systems, retention basins, swale drains, and pipe installation. We design and install drainage solutions that meet local council and engineering specifications.

Core Services
Road base preparation, kerbing, asphalt works, and footpath construction. From subdivision roads to commercial access routes, we deliver to specification and on schedule.

Core Services
Installation of water mains, sewer lines, gas, electrical conduits, and telecommunications infrastructure. Trenching and backfill completed to utility authority standards.

Project Types
End-to-end civil works for residential subdivisions including lot formation, road construction, drainage, and all underground services. We work closely with developers and councils.

Project Types
Large-scale civil construction for commercial and industrial developments. Site preparation, heavy earthworks, access roads, and services infrastructure delivered on time and on budget.
About
Cornish Civil Construction is owned and operated by Blair Cornish, a Western Australia–based civil contractor with deep experience across earthworks, drainage, road construction, and underground services.
We specialise in residential subdivisions and commercial developments throughout the Perth metropolitan area. Every project is managed hands-on — from initial site assessment through to final handover — ensuring quality workmanship and clear communication at every stage.
Whether you need bulk earthworks for a new subdivision or underground services for a commercial development, give Blair a call to discuss your project requirements and get a no-obligation quote.
Years of hands-on civil construction experience across earthworks, drainage, and road works throughout the Perth metropolitan area.
We plan meticulously, mobilise quickly, and deliver on schedule. Our clients count on us to keep their projects moving.
You deal directly with Blair. No layers of management — just honest advice and clear updates from start to finish.
Why Us
Reliable civil construction across the Perth metropolitan area. We bring professionalism, quality, and clear communication to every project.
Fully licensed and comprehensively insured. We meet all WA regulatory requirements so you can have peace of mind.
We understand that delays cost money. Our projects are planned and executed to meet your deadlines, every time.
All work completed to Australian standards and local council specifications. We take pride in getting it right the first time.
Contact us for a no-obligation quote on your next project. We provide transparent, competitive pricing with no hidden costs.