Civil Drainage Contractor in Perth WA
Boretech Contracting constructs drainage infrastructure for civil, government, and resource industry clients across Perth metro and regional Western Australia. We install soakwells, box culverts, gravity sewer, and pumping stations using open cut trenching, micro-tunnelling, HDD, and a combination of all three where the site demands it.
Backed by a team with over 50 years of combined industry experience, we bring our own equipment, licensed crews, and structured project delivery to every drainage scope we take on, from a soakwell field in a Balcatta subdivision to a sewerage system upgrade at a regional mine site.
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What Is Civil Drainage?
Civil drainage is the installation of below-ground infrastructure that collects, conveys, and disposes of stormwater, wastewater, and groundwater across residential, commercial, civil, and resource industry projects. In Western Australia, drainage design is shaped by site conditions, topography, existing services, and authority requirements.
Boretech delivers drainage solutions tailored to each project, including:
- Open cut trenching where access allows
- Micro-tunnelling beneath roads, rail corridors, and structures
- Horizontal Directional Drilling (HDD) for longer trenchless installations
- Stormwater, sewer, and groundwater infrastructure
- Metro, regional, civil, and mining sector projects
Boretech hauls across the full network spectrum, including:
- Fibre optic cable from 12f through 432f and 576f counts
- 400 pair copper for legacy and transitional telecommunications networks
- 240 LV and 400 HV power cable for distribution and reticulation work
- New estate and brownfield hauls through both freshly installed and existing duct
- Metro, regional, civil, and utility network projects across WA
Because we also install the duct in-house through our directional drilling and trenching capability, the conduit is proven and hauling-ready before the cable arrives on site.
Why Clients Choose Boretech as Their Drainage Contractor in Perth WA
Boretech has been constructing drainage and sewer infrastructure as part of its civil programmes across Perth and regional WA since the company’s early years on the NBN and Telstra networks. Our crews handle drainage scopes across the full spectrum, from soakwell installations in inner metro suburbs to pumping station construction at remote resource industry sites.
50+ Years of Combined Experience in WA Underground Civil Works
The supervisors and project managers running Boretech’s drainage programmes bring over 50 years of combined experience in below-ground civil construction across Western Australia. That field knowledge covers the ground conditions, authority standards, and drainage product requirements specific to this state, not generic civil experience that doesn’t account for how drainage actually behaves in Perth’s sand profiles or the Goldfields.
- Deep familiarity with Perth metro sand, limestone, clay, and coffee rock profiles
- Gravity sewer and soakwell experience across Perth’s flat Swan Coastal Plain topography
- Regional WA drainage delivery including mine site and infrastructure project scopes
- Crew knowledge of Water Corporation WA, Main Roads WA, and local government drainage standards
Multi-Method Capability: Open Cut, Micro-Tunnelling, and HDD
Most drainage contractors can trench. Boretech can trench, micro-tunnel, and directional drill, selecting and sequencing the right method for each section of the same project without the client needing to split the scope across multiple subcontractors. In established Perth suburbs, drainage alignments frequently cross roads, footpaths, and existing infrastructure where open cut is not feasible.
- Open cut trenching for accessible alignments in sand, clay, and limestone
- Micro-tunnelling for non-disruptive crossings under roads, footpaths, and structures
- HDD for longer trenchless drainage runs under live infrastructure
- All three methods self-performed with Boretech’s own crews, no trenchless subcontractor required
Full Drainage Scope In-House, From Soakwell to Pump Station
Boretech installs every component of a drainage system under one contract. There is no outsourcing of soakwell installation to one trade, gravity sewer to another, and pump station construction to a third. When drainage scopes get split between multiple contractors, coordination gaps appear and programme delays follow. Boretech eliminates that by keeping the full scope under one crew, one SWMS, and one project manager.
- Soakwell sizing, excavation, and installation to council and Water Corporation specification
- Box culvert placement and bedding for stormwater conveyance under roads and infrastructure
- Gravity sewer reticulation, jointing, pressure testing, and CCTV inspection where required
- Pump station chamber excavation and below-ground infrastructure installation
Company-Owned Fleet of 200+ Items of Plant
Boretech operates over 200 items of plant across its Balcatta and Kalgoorlie bases, maintained in-house and mobilised on our schedule, not a hire company’s availability. The excavator range covers compact machines for tight metro drainage trenches through to larger units suited to bulk pump station excavation. Vacuum trucks are available for NDD service verification before drainage excavation begins.
- Company-owned excavator fleet covering compact metro through to bulk excavation capacity
- Vacuum trucks for NDD and service location prior to drainage works
- Supporting compaction, reinstatement, and transport plant maintained in-house
- Kalgoorlie regional base for faster mobilisation into Goldfields and Mid West drainage projects
WA Drainage and Safety Standards Delivered on Every Project
Civil drainage in Western Australia is governed by different standards depending on the project type: Water Corporation WA specifications for reticulated sewer, Main Roads WA requirements for road reserve drainage, local government reinstatement standards for council projects, and client-specific design standards on resource industry sites. Boretech’s project managers are experienced across all four and ensure the correct standard is applied at every stage.
- Compliant with the Work Health and Safety Act 2020 (WA)
- SWMS-led project delivery covering confined space entry, deep excavation, and live service management
- DBYD referral and NDD service verification completed before excavation on every project
- WorkSafe Restricted Asbestos Removal Licence WR2407 held for ACM encountered during drainage excavation
How Boretech Manages Civil Drainage Projects
Boretech applies the same structured delivery process to every drainage scope, whether the project is a soakwell installation in a residential road reserve or a gravity sewer and pumping station programme at a remote mine site.
Drainage Design Review and Pre-Mobilisation Planning
Before any crew or equipment moves to site, the project team reviews the drainage design, civil drawings, and relevant authority standards against the actual site conditions. Soil profiles, seasonal water table data, invert levels, and surface constraints are assessed to confirm the proposed installation method and product selection are viable. Any conflicts between the design and the ground conditions are identified and resolved before mobilisation, not discovered mid-excavation.
DBYD Referral and Underground Service Verification
A full Dial Before You Dig referral is submitted and reviewed before any crew mobilises to site. Where existing underground services are present in the drainage corridor, non-destructive digging is used to physically expose and confirm service positions before mechanical excavation begins. Drainage trenches run deeper than standard utility trenches. The consequences of a service strike at gravity sewer depth are more serious than at shallow conduit level, and this step reflects that.
Equipment Selection and Site Setup
Excavator type, size, and supporting plant are matched to the drainage scope section by section. Compact machines are selected for tight residential or road reserve access. Larger excavators are mobilised for bulk pump station chamber excavation or wide box culvert installations. Where NDD is required ahead of trenching, the vacuum truck is positioned and operated before the excavator moves into the work area.
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Excavation and Drainage Product Installation
With services confirmed and equipment on site, excavation proceeds to the drainage design profile. Trench dimensions, batter profiles, and shoring are managed to specification and adjusted for the actual ground conditions encountered. Drainage products installed by Boretech in civil drainage scopes include soakwells and soakwell manifold systems, reinforced concrete box culverts, uPVC and PE gravity sewer pipe, HDPE drainage conduit, and pump station wet well chambers. Bedding, select backfill, and concrete encasement are placed to the relevant standard throughout.
Testing, Inspection, and Network Operator Sign-Off
Before backfill commences on sewer and pressurised drainage lines, pressure testing is completed to confirm the installation is watertight and meets the applicable specification. Gravity sewer is inspected by CCTV where required by the network operator or project specification, and test results and footage are documented and provided to the client or authority before the programme advances. Boretech does not backfill drainage infrastructure before required testing is signed off, regardless of programme pressure.
Reinstatement and Demobilisation
Once installation and testing are complete, trench backfill is compacted in layers to the specified density standard. Surface reinstatement, including asphalt, concrete, kerbing, gravel, or topsoil depending on the surface type, is completed to the council, Main Roads WA, or client specification before demobilisation. All excess spoil, pipe offcuts, and site waste are removed. The scope is signed off against project documentation before Boretech leaves site.
Who We Work With
Boretech delivers civil drainage infrastructure for clients across the government, civil construction, resources, and development sectors throughout WA, SA, and NSW.
Local Government and Road Authorities
Drainage upgrades in Perth metro road reserves are among the most operationally constrained scopes in civil construction. Live traffic, adjacent services, strict reinstatement requirements, and tight permit windows require a contractor who plans precisely and executes without disrupting residents, businesses, or passing traffic. Boretech delivers drainage scopes for councils and road authorities across Perth metro and regional WA, working under Main Roads WA specifications, road reserve permits, and the specific pavement reinstatement standards required by each authority.
Mining and Resources Clients
Mine sites require drainage infrastructure for site stormwater management, sewerage systems for camp and processing facilities, and pumped drainage systems to manage groundwater and process water across the operational footprint. Boretech has delivered gravity sewer and drainage scopes directly for resources industry clients in regional WA, including the Goldfields and Mid West. Our Kalgoorlie regional base reduces mobilisation time and cost on Goldfields drainage projects significantly, and our crews hold the site safety inductions and documentation requirements common across WA mine sites.
Principal Contractors
Large civil programmes, including road construction, rail corridor works, and utility infrastructure projects, regularly include drainage as an integrated part of the scope alongside earthworks and service installation. Boretech delivers drainage as a self-performing subcontractor within these programmes, removing the need for the principal contractor to manage a separate drainage trade.
Residential and Commercial Developers
Greenfield subdivision and commercial development drainage requires soakwell design compliance, stormwater management system installation, and gravity sewer reticulation prior to connection to the Water Corporation reticulated network. Boretech delivers drainage scopes for developers working across Perth metro growth corridors in the northern, southern, and eastern suburbs, installing complete below-ground drainage systems to Water Corporation and local government requirements before the next construction stage can proceed.
Licences, Accreditations and Safety
Licences and Registrations
- EC Licence: 14748
- WorkSafe Restricted Asbestos Removal Licence: WR2407
- ABN: 68 623 214 497
- ACN: 623 214 497
- Compliant with the Work Health and Safety Act 2020 (WA)
Safety and Compliance
- All field personnel trained in SWMS compliance and service strike prevention
- DBYD referral and on-site utility locating completed before mobilisation on every project
- NDD used to positively expose services before any mechanical works commence
- Experienced under live traffic management plans, road reserve permits, and environmental management plans
- WorkSafe Restricted Asbestos Removal Licence WR2407 held for ACM encountered during excavation
Recent Drainage and Sewer Projects
BHP Sewerage System Upgrade, Western Australia
Boretech was engaged to deliver a full sewerage system upgrade for BHP at a WA resource industry site. The scope involved gravity sewer installation and below-ground drainage infrastructure in demanding site conditions, with Boretech managing the complete below-ground drainage scope to resource industry safety, documentation, and construction standards throughout.
Metronet Mandurah Train Station, Perth WA
Boretech delivered underground civil and drainage works as part of the Metronet Mandurah Train Station programme in Perth’s southern suburbs. The scope required drainage installation within a live rail corridor environment, working to the strict access, sequencing, and safety requirements that come with delivering underground infrastructure on a major public transport construction project.
Karara Mine Site, Mid West WA
Boretech mobilised crews and equipment to the Karara iron ore mine site in the Mid West region of WA to deliver underground services installation including drainage infrastructure across the mine site footprint. The project required excavation and pipe installation in demanding remote ground conditions, with Boretech managing logistics, crew mobilisation, and site safety compliance well outside Perth metro.
Locations We Serve Across WA and Australia
Boretech operates from our Balcatta workshop and Perth office, with a regional base in Kalgoorlie supporting faster mobilisation into the Goldfields and regional WA.
Perth Metropolitan Areas
- Balcatta
- Joondalup
- Osborne Park
- Morley
- Ellenbrook
- Midland
- Malaga
- Cannington
- Rockingham
- Armadale
- Fremantle
- Canning Vale
- Cockburn
- Mandurah
- Stirling
- Wanneroo
- Bassendean
- Bayswater
- Belmont
- Victoria Park
- Subiaco
- Nedlands
- Claremont
- Cottesloe
- Karrinyup
- Scarborough
- Inglewood
- Mount Lawley
- Mirrabooka
- Nollamara
- Bentley
- Thornlie
- Gosnells
- Maddington
- Kenwick
- Wangara
- Landsdale
- Dianella
- Yokine
- Innaloo
Regional and Goldfields WA
- Kalgoorlie
- Geraldton
- Esperance
- Albany
- Karratha
- Port Hedland
- Dampier
- Newman
- Broome
- Tom Price
- Carnarvon
- Exmouth
- Merredin
- Narrogin
- Northam
- York
South West WA
- Bunbury
- Busselton
- Margaret River
- Collie
- Harvey
- Capel
- Dunsborough
- Manjimup
- Bridgetown
Interstate
- Adelaide SA
- Sydney NSW
Frequently Asked Questions About Civil Drainage Contractors in Perth WA
As an experienced civil drainage contractor, Boretech delivers complete drainage solutions across Perth and regional Western Australia. Our services include stormwater drainage, gravity sewer installation, pump stations, soakwells, box culverts, and underground drainage systems for residential, commercial, civil, and mining projects. Our team operates its own equipment and crew, ensuring every installation is completed safely, efficiently, and to the required specifications.
Every drainage project has unique site conditions, budget requirements, and environmental considerations. Boretech assesses excavation depth, ground conditions, existing services, stormwater systems, sewer requirements, and project specifications before selecting the most efficient construction method. Depending on the job, we may use open cut excavation, micro-tunnelling, or HDD installation to ensure quality outcomes for our clients.
Stormwater drainage systems collect and manage rainwater to protect roads, footpaths, homes, businesses, and community infrastructure. In Perth, the sandy Swan Coastal Plain allows stormwater to infiltrate through soakwells in many locations. Where groundwater levels or site conditions prevent infiltration, stormwater must be conveyed through engineered drainage systems to approved discharge points. Our experience across WA allows us to install stormwater systems that suit local conditions and comply with authority requirements.
Boretech installs a range of stormwater systems and drainage infrastructure throughout Western Australia, including soakwells, box culverts, drainage pits, stormwater pipelines, pump stations, and gravity sewer systems. Our contractors have the expertise, knowledge, and equipment required to complete various projects across Perth, Midland, regional WA, and remote mining sites.
Micro-tunnelling is used when stormwater drainage or sewer infrastructure must pass beneath roads, footpaths, rail corridors, driveways, or structures without disturbing the surface above. This trenchless construction method allows our team to install drainage systems with precision while minimising disruption to the surrounding environment, businesses, and local community.
Yes. Boretech delivers drainage and sewer construction in accordance with Water Corporation requirements, Main Roads WA specifications, local authority standards, and client project requirements. We ensure all installation, testing, documentation, and project records are completed correctly before practical completion, helping clients avoid delays and compliance problems.
Yes. Before excavation starts, Boretech submits the required Dial Before You Dig referrals and carries out utility locating across the site. Where required, our crew uses non-destructive digging (NDD) to safely expose underground services before mechanical excavation begins. This process helps ensure work is carried out safely while protecting existing infrastructure and reducing project risk.
Yes. Boretech regularly delivers drainage solutions for mining and resource industry projects across Western Australia, including the Goldfields, Mid West, and Pilbara. Our employees have extensive experience operating in remote environments and understand the safety, environmental, and documentation requirements involved in mining construction projects. We have the ability to mobilise the right crew, equipment, and support systems for projects of varying size and complexity.
Quality, integrity, and honest communication are central to every project we complete. Our team manages excavation, installation, testing, and project delivery in-house, ensuring every stage of construction is completed to specification. With decades of combined experience, we apply our expertise to deliver efficient drainage solutions while maintaining high standards of workmanship and safety.
Connecting sewer and stormwater systems to Water Corporation infrastructure requires careful planning, construction, testing, inspection, and documentation. Boretech carries out excavation, pipe installation, pressure testing, CCTV inspections, and all required works before submitting documentation for approval. From project start through to completion, our team ensures the connection process is managed efficiently and completed in accordance with Water Corporation requirements.
Get a Quote From Perth's Civil Drainage Specialists
Boretech Contracting has the equipment, licences, and field experience to deliver civil drainage projects of any scale across Perth metro, regional WA, SA, and NSW. From a soakwell installation in a residential road reserve to a gravity sewer and pumping station programme at a remote mine site, our crews are ready to mobilise.
Contact us today to discuss your project scope and receive a no-obligation quote.
For project and job enquiries: estimating@boretechcontracting.com.au (08) 6377 7682
Vac truck hire enquiries: vactruck@boretechcontracting.com.au
Workshop and office: 5 Kenhelm St, Balcatta WA 6021
Regional office: 96 Egan St, Kalgoorlie WA 6430
Licences: EC 14748 | WorkSafe Asbestos WR2407 | ABN 68 623 214 497
