76 Dockside Dr #108  St Augustine, FL 32084


Our service technicians and mechanics are highly trained on all types of marine vessels.
Grandslam Boat Sales North Florida | Engine Repair & Service
We offer an extensive range of power boat repairs & services including:
warranty work, insurance and pre-sale inspections, boat hull repair, engine servicing, rewiring, electronics upgrades and paint customizations.

Common Services Available:

  • Oil changes
  • Waterpump changes
  • Tune ups
  • fuel filter changes
  • 100 hour services
  • 250 hours services
  • Genuine Mercury parts

We service these brands of outboard motors:

  • Mercury maintenance, repairs and warranty work
  • Yamaha outboards maintenance and repairs
  • Suzuki outboards maintenance and repairs
While you’ve got your boat in for service or repairs why not upgrade with some custom installs.

The above photos represent some examples of custom fishing accessories, paint and graphics, upholstery, audio systems, led lighting, storage solutions, navigation and radar systems. Do you have questions about customizing your boat? Contact us today and find out how we can help.

From tune ups and oil changes to full diagnostics and overhauls, we can keep your engine running at peak performance during those offshore runs. Full confidence can be placed in our certified mechanics to give you honest assessments of needed repairs, replacements and service.

Contact us for your outboard engine service & repairs.

We offer full service electrical troubleshooting, rewiring, new installations and upgrades for the complicated electrical systems found on today’s watercraft. If you need it completed right the first time, call Grand Slam Boats of North Florida.

Contact us for your electrical service & repairs.

Grand Slam Boats offers a range of repair options and solutions for damaged hulls, fiberglass cracks, gelcoat repair, hole repairs, etc. We can help you get back on the water quick so you can continue to enjoy the Florida sunshine.

Contact us for your boat hull maintenance & repairs.

With customizations to your boat the list is endless and the wish list is long. Call us today to see what options we have to make your boat into a head-turner. Lighting, deck grip, upholstery, rod holders and outriggers, rails and cleat installations- we do it all. We are a certified dealer for JL Audio, Gemlux Fishing Accessories, and Lumitech Lighting.

Contact us for your boat customizations.

Grand Slam Boats of North Florida has a made a habit of always having the latest and greatest electronics available to our customers. We are a certified dealer for Simrad, Garmin, CMOR Mapping and Irridium Satellite Communications.

Contact us for your boat electronics maintenance & repairs.

Grand Slam Boats offers boat owners the ability to quickly and dramatically change the look of their boat with custom graphic wraps and decals. Available for all situations whether you want your fishing team logos across the side or just want the name of the craft listed stylishly on the back of the transom we’ve got you covered.

Contact us for your boat hull custom graphics.

We offer all types of boat repair and diagnostic services.
A bit more about our services and why we offer them to our customers.

We really are a one stop shop for all your boating needs, having all of these abilities under one roof allows us to  keep the quality up and the price down. We know what we are capable of and can deliver a satisfactory product every time. Remember no job is too big or too small; whatever the customization is, we can make it happen. So if you are looking to trick out your current boat or get a fully custom new boat give us a call at 904-460-2510 to talk about your dream boat or schedule a service appointment.

Best inventory and highest quality customer service, these guys get it done!