Welcome to Granite Boatworks. We are a full service powerboat sales and service facility located on the water at Twin Bridges Marina roughly halfway between Mount Vernon and Anacortes, WA. An easy hour and a half drive north of Seattle, the marina complex can be seen from Highway 20 and is adjacent to the Swinomish Channel boat ramp.
Our focus is on trailerable size powerboats up to approximately 35 feet and we are able to provide necessary maintenance for all engine types, custom rigging and installations, and new & used boat, motor, and trailer sales.
Granite Boatworks is an authorized dealer for the following brands:
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• Hydra-Sports Boats
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• Evinrude Outboards
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• King Trailers
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• Silver Marine Inflatables
