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Public listings, unconfirmed · not Boat Day partners

Seacoast & Casco Bay yards and marine services

43 boatyards, marinas, harbors and marine services, from Kittery and Portsmouth to Casco Bay. Every listing comes from the business's own public website or another public source, with a note on where it came from and when we last checked it (most recent check: 2026-09-14).

What this list is, and isn't. These are public-web listings so you can find local help. None is a Boat Day partner, none has claimed or verified its listing, and Boat Day doesn't book yards. Contact the business directly through its own site. Prices, where we have them, are in the winter storage and haul-out guide (public sources, dated). Run a yard? See founding yards.

Seacoast Maine & New Hampshire (28)

Boatyards & marinas

  • Great Bay Marine

    Newington, NH · greatbaymarine.com

    Source: Official Great Bay Marine site; year-round Seacoast full-service yard on Great Bay.

    Public listing, unconfirmed · last checked 2026-09-14

  • Great Cove Boat Club

    Eliot, ME · greatcove.org

    Source: Official Great Cove Boat Club site; Piscataqua slips/moorings with 30-ton marine railway & seasonal storage (Eliot).

    Public listing, unconfirmed · last checked 2026-09-14

  • Hampton Harbor Boatworks

    Hampton, NH

    Source: Public Maps listing for 24 Harbor Road, Hampton Harbor; call ahead — no separate commercial homepage found.

    Public listing, unconfirmed · last checked 2026-09-14

  • Hampton River Marina

    Hampton, NH · hamptonrivermarina.com

    Source: Official Hampton River Marina site; slips, wet/dry storage, haul-outs & 25-ton travel lift on Hampton Harbor.

    Public listing, unconfirmed · last checked 2026-09-14

  • Safe Harbor Kittery Point

    Kittery, ME · safeharbor.com

    Source: Official Safe Harbor location page; full-service yard on the Piscataqua (formerly Kittery Point Yacht Yard).

    Public listing, unconfirmed · last checked 2026-09-14

Marinas

  • Badgers Island Marina

    Kittery, ME · badgersislandmarina.com

    Source: Official Badgers Island Marina site; deep-water slips on the Piscataqua (Kittery / Portsmouth Harbor).

    Public listing, unconfirmed · last checked 2026-09-14

  • Little Bay Marina

    Dover, NH

    Source: Public Maps listing at 423 Dover Point Rd on Little Bay / Great Bay; call ahead — limited public web footprint.

    Public listing, unconfirmed · last checked 2026-09-14

  • Piscataqua Marina

    Kittery, ME · piscataquamarina.com

    Source: Official marina site (formerly Badgers Island Marina East); Dockwa public page.

    Public listing, unconfirmed · last checked 2026-09-14

  • Safe Harbor Wentworth by the Sea

    New Castle, NH · safeharbor.com

    Source: Official Safe Harbor location page; Little Harbor / New Castle transient marina.

    Public listing, unconfirmed · last checked 2026-09-14

Harbors & moorings

Dealers & service

Chandleries

Marine electronics

  • Braseth Marine

    Portsmouth, NH · brasethmarine.com

    Source: Official site; ABYC-certified Seacoast marine electrical & electronics (Portsmouth / southern ME).

    Public listing, unconfirmed · last checked 2026-09-14

Canvas & upholstery

  • Back Channel Canvas

    Eliot, ME · backchannelcanvas.com

    Source: Official canvas shop site; shop at Safe Harbor / Eliot waterfront for biminis, dodgers, covers.

    Public listing, unconfirmed · last checked 2026-09-14

Surveyors

Boat insurance

Casco Bay · Portland (15)

Boatyards & marinas

  • Brewer South Freeport Marine

    South Freeport, ME · brewersouthfreeport.com

    Source: Official Brewer South Freeport Marine site; full-service boatyard & marina on the Harraseeket River (Casco Bay).

    Public listing, unconfirmed · last checked 2026-09-14

  • Handy Boat Service

    Falmouth, ME · handyboat.com

    Source: Official Handy Boat site; full-service marina/yard on Falmouth Foreside (Casco Bay) since 1934.

    Public listing, unconfirmed · last checked 2026-09-14

  • Maine Yacht Center

    Portland, ME · maineyacht.com

    Source: Official Maine Yacht Center site; full-service slips/yard on Portland’s East End; Dockwa public page.

    Public listing, unconfirmed · last checked 2026-09-14

  • Portland Yacht Services

    Portland, ME · portlandyacht.com

    Source: Official PYS site; full-service boatyard / shipyard on Portland’s working waterfront.

    Public listing, unconfirmed · last checked 2026-09-14

  • Safe Harbor Great Island

    Harpswell, ME · safeharbor.com

    Source: Official Safe Harbor location page (formerly Great Island Boat Yard); full-service yard & marina in Orr’s Cove, Harpswell.

    Public listing, unconfirmed · last checked 2026-09-14

  • South Port Marine

    South Portland, ME · southportmarine.com

    Source: Official South Port Marine site; slips, fuel, storage & service on Casco Bay; Dockwa public page.

    Public listing, unconfirmed · last checked 2026-09-14

  • Spring Point Marina (Port Harbor Marine)

    South Portland, ME · springpointmarina.com

    Source: Official Spring Point / Port Harbor Marine marina site; large full-service yard at harbor entrance.

    Public listing, unconfirmed · last checked 2026-09-14

  • Yankee Marina & Boatyard

    Yarmouth, ME · yankeemarina.com

    Source: Official Yankee Marina & Boatyard site; family-owned full-service yard on the Royal River (Casco Bay access).

    Public listing, unconfirmed · last checked 2026-09-14

  • Yarmouth Boat Yard

    Yarmouth, ME · yarmouthboatyard.com

    Source: Official Yarmouth Boat Yard site; slips, service & storage on the Royal River with Casco Bay access.

    Public listing, unconfirmed · last checked 2026-09-14

Marinas

  • DiMillo's Marina — Portland

    Portland, ME · dimillosmarina.com

    Source: Official DiMillo's Marina site; Old Port / Long Wharf on Portland Harbor (transient via Dockwa per their guest page).

    Public listing, unconfirmed · last checked 2026-09-14

  • Fore Points Marina

    Portland, ME · forepointsmarina.com

    Source: Official Fore Points site; downtown Portland Harbor marina (Ocean Gateway).

    Public listing, unconfirmed · last checked 2026-09-14

  • Sunset Marina

    South Portland, ME · sunsetmariname.com

    Source: Official Sunset Marina site; family-run slips & fuel across Portland Harbor.

    Public listing, unconfirmed · last checked 2026-09-14

Dealers & service

Chandleries

Continue

Seacoast guides, sourced and dated

Public sources and as-of dates on every page.

Same data for agents and apps: /api/v1/yards.