Services

  • Pre-purchase engine inspections
  • Repower Service
  • Engine Surveys
  • Engine Maintenance – from simple fluid changes to 1000 hour services
  • Comprehensive engine repair
  • Complete Rebuilds
  • Transmission
  • AfterCooler Service
  • Sail Drives
  • Zeus Pods
  • Shaft Work
  • Alignments
  • Prop Removals
Cummins
Northern Lights
Yanmar

Thomas Marine Service prides itself in having one of the best diesel diagnosticians in Maryland! Expertly trained and certified Cummins, Yanmar and Northern Lights technicians!