Our Services
Truck Repairs and Servicing
Whether your truck needs a routine service, a repair or help finding a problem, we provide experienced diesel mechanical services for trucks of all sizes across St Marys, Penrith and Greater Western Sydney.

01
Truck Servicing – General & Preventative Maintenance
Regular truck servicing and preventative maintenance can help pick up problems before they turn into bigger repairs. We provide general mechanical servicing for diesel trucks and commercial vehicles of all sizes, helping keep your truck running properly and on the road.
02
Truck Brake & Air System Repairs
We carry out brake and air system repairs for trucks, including brake components, air lines and related air system faults. Whether you have a problem with your brakes or an issue with the air system, we can inspect the problem and carry out the necessary truck repairs.


03
Engine & Diesel Repairs
From diesel engine faults and fuel system problems to injectors, cooling systems and general engine repairs, we work on diesel trucks of all sizes. With more than 40 years of hands-on experience as a diesel mechanic, we can diagnose problems and carry out the repairs needed to keep your truck working reliably.
Reach Out Today
Contact us for expert truck repairs and servicing, and let our experienced team keep your vehicles operating at peak performance.
04
Truck Transmission, Clutch & Driveline Repairs
Truck transmissions, clutches and driveline components all take a lot of use, particularly in working vehicles and heavy trucks. We provide transmission, clutch, differential and driveline repairs for diesel trucks, prime movers and commercial vehicles.


05
Steering & Suspension Repairs for your Truck
Steering and suspension problems can affect the way a truck handles, carries its load and performs on the road. We inspect and repair steering, suspension, springs and related components on trucks and heavy vehicles, providing practical truck repairs and keeping you safe.
06
Truck Diagnostics & Electrical Repairs
When a warning light comes on or your truck isn’t running as it should, finding the actual cause is the first step. We provide diesel diagnostics and electrical fault finding for trucks and commercial vehicles, helping identify engine, fuel, electrical and mechanical problems so the right repairs can be carried out.

Very happy with the diesel servicing and brake repairs. Professional, reliable and easy to deal with. Great to have a good, local diesel mechanic in St Mary’s.
Why Choose Paul St Quintin Truck Repairs?
At Paul St Quintin Truck Repairs, our values guide us in providing an honest and reliable service to all our clients.
Experience You Can Rely On
With more than 40 years as a diesel truck mechanic, Paul brings a wealth of hands-on experience to every job. He believes in diagnosing the problem properly, giving honest advice and doing the job right.
Honest Personal Service
As a smaller local business, Paul gets to know his customers and their trucks. He takes the time to listen, explain what is needed and provide straightforward advice without recommending work that isn’t necessary.
Quality Workmanship
Paul has built his business through word of mouth and long-term customer relationships. Quality truck servicing and repairs have always been at the heart of the business, with care taken to make sure the job is done properly.
Reach Out Today
Contact us for expert truck repairs and servicing, and let our experienced team keep your vehicles operating at peak performance.
