Gonce Marine is your Baltimore marina serving Eastern Baltimore County. We are located in Sparrows Point on the sheltered waters of Old Road Bay just minutes from the Chesapeake Bay and Inner Harbor. Gonce Marine has 33 floating dock boat slips for rent plus accommodations for transient vessels. Our slips can accommodate jet skis and boats up to 50 feet. Each slip has its own electric and water.  

8906 Avenue B
Sparrows Point, MD 21219
Phone 443-242-6162
Questions? email us at info@goncemarine.com

Home to G.E.I. Contracting and Marine Construction

Services offered:
Pile Driving
Stone Revetments
Floating Docks
Boat Ramps
Sales, Service and Installation of Boat Lifts

Visit us at

call: 410-477-6887
 or email:

Welcome Aboard.....


 Schedule Your Winter Services Today

With boating season coming to an end now is the time to think about winter storage, winterization and shrink wrapping services

For winterization services and pricing check out the mechanic services page.

Our facilities on site include picnic area, bathrooms, showers and pump out station.

There are also mechanics available for all your repair needs.

Our services include: Slip rental and year-round land storage, kayak and stand up paddle board rentals. Our ship store and parts for order department is now open!


Gonce Marine is proud to offer our existing customers the opportunity to earn a billing credit of $75 for each new customer that you refer. Refer as many friends and family as you would like to earn additional credits. Each new customer must sign a 1 year lease agreement in order for you to qualify  for the credit.

(See link below for additional details

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We also offer jet ski floating docks available for rental


8906 Avenue B Sparrows Point, MD 21219

Latitude: 39.21649 Longitude: -76.438416


 We accept Visa and MasterCard payments
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