Marine Construction



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Laconia Office

1218 Union Ave, Laconia, NH 03246

(603) 293-4000

Current Lake Level

 +.75 in on December 1st

Full Lake: 504.32 ft

Sunapee Office

552 Route 11, Sunapee, NH 03782

(603) 763-6440

Clearwater Construction
Watermark Marine Supply

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Boathouse Construction in the Lakes Region and Beyond

Boathouses are a quintessential highlight of many New Hampshire lake front properties; especially on Lakes Winnipesaukee and Lake Sunapee.


Watermark Marine specializes in boathouse re-construction and often work our winter schedule around rebuilding many of the older “grandfathered” structures around New Hampshire. Whether working with the home owner directly or partnering with their chosen architect/general contractor, Watermark Marine provides more history and direct experience than any other marine contractor in New Hampshire.