WJC Contracting
Specialist boilermaking, welding and mechanical fitting for Queensland's energy, mining, gas and agricultural sectors. Based in Dalby and mobilised across the Western Downs — Chinchilla, Roma, Miles, Toowoomba and beyond — with over 15 years of on-site experience, fully equipped vehicles and 24/7 availability.
A broad range of specialised trades, delivered on site or in the workshop.
Assessment, disassembly, fabrication, installation and commissioning of heavy industrial systems — scoped and delivered on schedule and within budget.
Mechanical Fitting
Expert mechanical fitting solutions for the energy, mining, and gas sectors — pump, valve and gearbox rebuilds, rotating equipment overhauls and shaft alignment.
Fabrication & Welding
Structural steel fabrication to AS 1554.1. Pressure welding to AS/NZS 3992:2020 and ISO 9606-1. SMAW, GTAW, GMAW and FCAW processes.
Power Stations
Extensive experience in power generation, including air heater and furnace overhauls, burner fit outs, duct work, mill and turbine maintenance and major shutdown scopes.
Mining
Heavy engineering and boilermaking on trench diggers, dozers, dump trucks, front end loaders, scrapers, excavators, drag line buckets and wash plants.
Agriculture
Servicing all farming machinery, fabrication and repair of cattle crates, construction of irrigation water pump stations and manufacturing horse floats.
Gas & Pipeline
Certified pressure welding for steel pipelines, field-based weld remediation, in-situ pipeline welding and tie-in support with confined space compliance.
Renewables
Structural steel, fabrication, rigging and mechanical support for the solar, wind and battery projects across the Western Downs.
Pressure Welding
Pressure welding to AS/NZS 3992 and ISO 9606-1 on boiler tubes, headers, vessels and high-pressure pipework, in the workshop or in the field.
24/7 Breakdowns
After-hours and emergency call-outs for plant, machinery and pipework failures, with fully equipped site vehicles.
Based in Dalby, mobilised across the Western Downs and beyond.
Reliable, safety-critical trades that keep your operation running.
WJC Contracting delivers safety-critical trades and services that support the continued operation of Australia's energy and resource sectors. We work to disciplined procedures, deliver on time, and never compromise on structural integrity — building productive working relationships founded on integrity, exceptional workmanship and the mutual achievement of goals.
- Independent weld inspectionRegular third-party welding supervisor testing and inspection ensures WJC workers maintain welding standards.
- 24/7 availabilityFully equipped site vehicles with high quality, reliable tooling — ready for after-hours and emergency call-outs.
- Certified to Australian standardsAS 1554.1 structural steel · AS/NZS 3992 pressure welding · AS/NZS ISO 9606-1 welder qualification.
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- Priced from our current schedule of rates, so there are no surprises
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- Labour, equipment, vehicles, travel and accommodation in one quote
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Planning a shutdown, project or breakdown response?
Get in touch to discuss scope, timing and site requirements. Our team will talk through the job directly and outline how WJC Contracting can support your operations — on schedule, within budget and to Australian standards.