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About Us

Capturing the Essence of Northport Harbor:
A Legacy of Seymour's Boatyard

For over a century, Seymour’s Boatyard has stood as a cornerstone of Northport Harbor, embodying the essence of a local, family-run marine business.

Dexter Seymour, the visionary who established the boatyard in 1923, set the stage for a rich nautical history in the heart of Northport Village.

Today, under the stewardship of the Weber family, who took the helm in 1996, Seymour’s Boatyard remains committed to the values set forth by its founder. With the largest and best-maintained fleet of USCG inspected vessels on the North Shore, Seymour’s ensures minimal wait times and unparalleled service.

One of Seymour’s Boatyard’s standout offerings is its Rental Moorings, renowned as the safest in the harbor. Each mooring undergoes an annual inspection and upgrade process, surpassing the stringent standards set by Northport and Centerport yacht clubs as well as the Northport Harbor Advisory Board.  Seymour’s Boatyard never compromises on safety or quality, guaranteeing peace of mind for all mooring customers.

Convenience is paramount at Seymour’s, with an easily accessible fuel dock staffed from 8 am to 8 pm, strategically located just off the channel. Whether you need to refuel or require engine servicing, Seymour’s Boatyard is your go-to destination for all your boating needs in Northport.

As Seymour’s Boatyard celebrates a century of excellence, it remains deeply rooted in the Northport community. This cherished establishment holds a piece of nautical history, and its commitment to outstanding customer service ensures that locals and visitors alike can rely on Seymour’s for top-tier boating experiences.

Preserving the heritage and beauty of Northport Harbor, Seymour’s Boatyard continues to be a trusted name, providing an unrivaled boating experience in this charming village.

Serving Northport Harbor’s Nautical Needs Since 1923.

“A favorite among Long Island boaters
and transient boaters alike.”

Our Rental Mooring Service Areas

All moorings serviced by Seymour’s exceed standards set by Northport Harbor Advisory Board as well as Northport and Centerport Yacht Clubs. Seymour’s offers rentals, sales and servicing of moorings.

Seymour's rental moorings continue to be the safest in the harbor.


Each year moorings are pulled, inspected and upgraded.

We use New England Rope’s premium 3-strand nylon line & we never reuse lines from a previous season.

All moorings come equipped with a new bridal & chafe gear; one pennant line and one safety line. All moorings come with a 4 ½ foot pick up stick and additional options are available if needed.

We've Got What You Need

Whether it’s boating equipment, Seymour’s apparel or anything else on your wishlist,
we carry a bunch of lifestyle and necessary items for the modern boater.

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