The Midwest's Premier Boat Service and Marina

Sweetwater Performance Center in Oshkosh, Wisconsin is a destination marine facility serving boaters across the Midwest. Whether you're local to the Fox Valley or making the trip from Illinois, Minnesota, Michigan, Iowa, or beyond, our certified technicians deliver the expert service your boat deserves. From routine oil changes and seasonal tune-ups to high-performance valve adjustments, winter storage, shrink wrapping, and emergency pick-up, we handle it all under one roof. We service all major brands and engine configurations, and our on-site Ship Store keeps the parts and accessories you need in stock. When it comes to quality marine service, Midwest boaters trust Sweetwater.