We deliver expert underwater husbandry to Seattle marinas and private docks. We specialize strictly in underwater services, prioritizing professional hull cleaning, running gear clearing, and intake maintenance. From Elliott Bay to Shilshole and Lake Washington, we are the trusted choice for captains and yacht owners in Seattle.

Looking for reliable hull cleaning in Seattle & Elliott Bay? Miami Marine LLC provides underwater hull cleaning, bottom cleaning and running gear service for vessels across Elliott Bay, Shilshole Bay, Lake Union, Lake Washington, and Puget Sound. Our commercial divers come to your marina slip, mooring or private dock, so there is no haul-out and no downtime.

In Puget Sound's cold, nutrient-rich waters, marine growth builds quickly. Regular in-water hull cleaning keeps barnacles and slime off your bottom, protects your anti-fouling paint, restores speed and cuts fuel consumption.

• Hull & Bottom Cleaning: Non-abrasive removal of algae, slime and soft growth that is safe for premium anti-fouling paint.
• Barnacle & Hard Growth Removal: Careful scraping of barnacles, tube worms and calcareous growth without scoring gelcoat, barrier coats or transducers.
• Propeller & Running Gear Cleaning: Props, shafts, rudders, trim tabs and thrusters cleared to restore thrust and reduce vibration.
• Intake & Through-Hull Clearing: Sea strainers, raw water intakes and thruster grates cleared to prevent overheating.

During the Seattle boating season, most boats and yachts benefit from a hull cleaning every 4 to 6 weeks, with more frequent dives in late summer when growth peaks. We set a recurring schedule around your vessel's use, bottom paint and slip location.

We clean hulls at every marina listed below, plus private docks and residential canals throughout the Seattle area.