Welder in Darwin, NT. Onsite welding. MIG welding. TIG welding. Arc welding. Excavation services. Earthmoving. Hard facing. Plasma cutting. 24/7 availability. NTJ Onsite Welding & Repairs in Darwin, NT delivers professional welding, excavation and earthmoving services for residential, industrial and civil clients. Our skilled team provides reliable onsite repairs, structural fabrication and heavy machinery welding using quality equipment and proven techniques to keep operations running safely and efficiently. From breakdown repairs to planned works, we respond promptly and work to high standards. Available 24/7, we proudly service Darwin and surrounding areas. Contact us today to discuss your project requirements.