Complete boat care for trouble and worry-free days on the water.
CMS Photo Gallery
Custom Marine Service takes no short cuts and provides only the best service, and the proof is in the pictures. Click on the button below to see for yourself.
In addition to engine and drive builds, both new and used, Custom Marine Service provides full rigging services, making it the one-stop shop for all your boat's needs.
Engines and Drives
CMS is one of the most highly respected engine builders in West Michigan, and provides custom power packages, carbureted or EFI, with any power level. Inboards or outboards - CMS does it all.