Thomas Auto Service has been proudly serving Long Island (Suffolk and Nassau) for 35 years from our headquarters in Deer Park, New York.


In addition to being a traditional auto repair shop, we specialize in engine rebuilding and engine re-manufacturing. Our technicians are experts in auto engine repairs, marine engine repairs and industrial engine repairs, including compressor repair for jack hammers and other industrial equipment. We do basic and complex engine repairs and rebuilding for all types of vehicles—from contemporary auto engines to antique and classic car engines to speed boat engines to industrial equipment engines.

We have a fully equipped engine repair shop featuring advanced tools to disassemble blocks, perform boil-outs, cut valves and more. We specialize in expert valve grinding and flywheel resurfacing.

Thomas Machine treats your car like it was our own. Our professionally skilled classic car engine repair technicians are prepared to perform all inspections and services on your car today. Our keen eye for detail and efficient service allows us to provide you with the best results possible.


At Thomas Auto Service, we are more than an engine repair shop. We perform expert car repairs and tune-ups in our fully equipped facility. We make sure your car is operating properly from bumper to bumper. Our technicians regularly tackle the repairs that trouble car owners the most—cooling system repairs, exhaust system repairs, catalytic converter replacement, spark plug replacement and much more. Learn more about the benefits of general auto repair.

For a detailed listing of our operations, please visit the Shop & Services page. For any questions or concerns you might have about any of our services, please contact us today. We are located in Deer Park. The number to call for our shop is 631-242-5665. We look forward to helping you with all of your engine needs.

About Thomas Auto

Engine Rebuilder & Remanufacturer
201-D Brook Avenue
Deer Park, NY 11729
(631) 242-5665


Auto Engine Repair & Rebuilding • Marine Engine Rebuilders

 Marine Engine Repair  Industrial Engine Repair & Rebuilding • Classic Car Engine Repair

 Antique Auto Engine Repair • Reliable Auto Repair Shop • Cylinder Head Repairs • Valve Grinding • Flywheel Resurfacing

Thomas Machine offers Snow Plowing in the Babylon, Lindenhurst, and Deer Park areas. Please contact us for more information.