I found Guisappe professional, trustworthy and polite. He has high levels of mechanical and auto electrical knowledge, which is complimented by his professional work ethic and dedication to his business. He was very patient with all my questions, and went above and beyond in fixing my gearbox. Very happy with his service and can only speak with high regards. VERY PROFESSIONAL INDEED!!!
Protect your investment
Wherever your machinery roams we provide on-the-go solutions that redefine excellence in plant machinery service. GDG Mechanical is your Trusted Partner in Plant Machinery Solutions.

Mobile Field Service Technican
GDG Mechanical is a qualified Field Service Plant Technician (mobile mechanic) with over 15 years of experience in the industry. We are dedicated to providing high quality repairs to all Rail and Plant Equipment any time or place that suits you. Servicing the Illawarra and Sydney Region.
Who we are
With more than 15 years of expertise in the field, GDG Mechanical stands as a certified Field Service Plant Technician (mobile mechanic). Our unwavering commitment is to deliver top-notch repairs for Rail and Plant Equipment, tailored to your convenience. Serving the Illawarra and Sydney Region.
Affordable Solutions
No matter if it's a regular inspection or a repair job, we assure you of complete satisfaction with our services. Our pricing is competitive, ensuring value for your investment.
Our Quality Promise
At GDG Mechanical, we pledge a seamless experience for both our new and returning customers. Our dedication is to maintain the highest standards in quality, providing you with unmatched service.
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Our Services
- Hydraulic Repairs
- Plants Machinery Repairs
- Onsite Welding Repairs
- Fault Diagnostic & Troubleshooting
- Fleet Services
- Air Conditioning Regas
- Electrical Fittings & Repairs
Machine Services
Machine Services
GDG offers routine maintenance servicing for both old and new machines. This means they can help you keep your equipment in top condition and prevent costly breakdowns. They also specialize in specific repairs, so whether you have a minor issue or a major problem, they can get your machine back up and running quickly and efficiently.
Onsite Services
Onsite Services
We understand that breakdowns can happen at any time, and that's why we offer convenient onsite welding and fabrication maintenance. This means we can come to your location and fix any welding or fabrication issues you're having, without you having to transport your equipment. We also offer onsite electrical repairs and fit-outs, air conditioning services, and comprehensive mechanical repairs, ensuring your equipment is always up and running.
Heavy Equipment
Heavy Equipment
We specialise in a range of heavy equipment, including plant machinery, excavators, loaders, bobcats, skidsteers, Hydrema, graders, as well as rail and road equipment, including Plasser resurfacing track machines.