Marine Construction in Gladstone
High-strength welding, structural repairs and custom fabrication for vessels, pontoons, offshore structures and marine infrastructure.
Marine work built for the Top End's harshest conditions
Humpty Doo Welding and Fabrication delivers marine construction across Gladstone and Queensland. Gladstone's LNG, alumina and port infrastructure calls for coded pipe welding and heavy structural fabrication to tight shutdown windows. We mobilise from our Humpty Doo base with fully-equipped rigs, bringing the same coded welding and fabrication standards to Gladstone that we are known for Territory-wide.
From wharf upgrades to pontoon fabrication and on-water repairs, our marine construction crew delivers high-strength steel, aluminium and stainless work that stands up to saltwater, tide and constant load. We mobilise to slipways, jetties and offshore structures with fully-equipped rigs.
Every job is project-managed end to end — survey, fabrication, install and sign-off — so tier-one contractors get one accountable team from quote to handover. No job too big or too small.
What we deliver
High-strength structural and coded welding to AS/NZS standards
Steel, aluminium and stainless fabrication for marine environments
Wharf, jetty and pontoon construction, upgrade and repair
On-water and slipway breakdown response with mobile rigs
Hardfacing and corrosion-resistant treatments for saltwater service
Full project management — survey, fabricate, install and sign-off
How we work
Survey & scope
We assess the job on site, take measurements and agree the scope, access and timeline with you.
Fabrication
Components are fabricated in our Humpty Doo workshop by accredited welders to drawing and code.
Mobilise & install
Our crew and fully-equipped rigs deploy to site to install and weld in place.
Inspect & hand over
Welds are inspected and documented, the site is cleared and the completed work is signed off.
Welding & fabrication in Gladstone, QLD
Gladstone is one of Australia's busiest industrial ports, ringed by the Curtis Island LNG trains, alumina refineries and aluminium smelting. Coded pipe, pressure systems and heavy structural steel are core to keeping this plant running.
We bring coded welders and fabrication crews in for shutdowns and tie-ins to tight windows, with full NDT coordination and sign-off. When a shutdown clock is running, documented welds delivered on schedule are everything.
Marine Construction projects on the ground
Other services in Gladstone
Ready to start your marine project in Gladstone?
Talk to a Territory-proud team that turns up, does the job right and stands behind the weld. No job too big or too small.