Founded by John Giresi, a seasoned professional with over 11 years of hands-on experience in marine diesel systems, our company is a trusted partner for boat owners in Waretown, NJ, and beyond.  We offer “to your dock” mobile repair and crane services for engine and generator removal/installation.  Our straightforward approach and the extensive experience of John Giresi and his team set Giresi Marine apart in the competitive marine diesel service industry.

Our primary focus is marine diesel engine and generator repair. With a keen understanding of these engines, Giresi Marine will keep your vessel's engine operating at reliably and at peak efficiency. From routine maintenance to complex repairs, we bring expertise and precision to every job to keep you on the water. 

Our services also include winterization and the inspecting and maintaining of prop shafts, propellers, and cutlass bearings.