Service Locations
On-Site Mechanical Support
Based in the Moreton Bay region, JT Diesel & Maintenance delivers comprehensive mobile field servicing across South East Queensland and into regional Queensland. Our team is equipped to operate in demanding environments, providing reliable on‑site mechanical support wherever your machinery is working.
We specialise in servicing industries that rely on heavy equipment and continuous uptime, including quarries, mines, crushing and screening plants, roadworks, civil construction, and large‑scale infrastructure projects. Whether the job is remote, high‑pressure or logistically complex, we bring the workshop to you with fully equipped service vehicles and experienced technicians.
Our mobile service capability covers everything from urgent breakdown response to scheduled maintenance and long‑term contract servicing. We support single machines through to full fleet maintenance programs, ensuring your equipment remains compliant, efficient and ready for work. With flexible travel options and the ability to mobilise quickly, we help minimise downtime and keep your operations moving.
JT Diesel & Maintenance is committed to delivering dependable, on‑site mechanical solutions across Queensland – wherever your project takes you.
Complete Onsite Servicing and Fleet Maintenance Plans
Our Services
JT Diesel & Maintenance is a locally owned mobile diesel fitting business specialising in on-site field servicing, maintenance, and breakdown support across mining, quarrying, civil, and heavy earthmoving operations. We operate with multiple fully equipped service vehicles, allowing us to respond efficiently and work directly at your site — reducing downtime and keeping machinery operating where it earns its keep.
The business is led by Jaimie Madden, a qualified diesel fitter with 7 years of mining industry experience. Jaimie has worked extensively in surface mining and heavy equipment environments, with a strong background in blast hole drill maintenance, including top hammer and rotary drills, along with ancillary equipment, dozers, excavators, and heavy earthmoving machinery commonly found in both mining and quarry operations.
This experience translates directly into the quarry and civil space, where equipment reliability, preventative maintenance, and fast response times are critical to daily production. JT Diesel & Maintenance brings a practical, hands-on approach built around real-world operating conditions — not workshop theory.
Supporting the business is Tanechka McAleese, who manages administration and client communications. Tanechka ensures bookings, scheduling, and invoicing are handled efficiently, allowing jobs to run smoothly from first contact through to completion.
At JT Diesel & Maintenance, we pride ourselves on honest workmanship, clear communication, and dependable field service. Whether you’re operating a mine, quarry, or civil project, we provide reliable mobile diesel support you can trust.