We will be closed Tuesday, September 8, for a company-wide team celebration. We’ll reopen with normal business hours on Wednesday, 9/9.

What We Work On

Each service is delivered by experienced technicians who know boats inside and out.

Winnisquam Marine Services Mechanical Services

Engine repairs, tune ups, lower unit work, impeller replacements, and full rebuilds. Outboards, stern drives, and inboards.

Winnisquam Marine Services Engine Diagnostics

Computer diagnostics for Mercury, Mercruiser, Yamaha, and other marine engines. We find the problem before we start turning wrenches.

Winnisquam Marine Services Electrical Services

Wiring, battery systems, gauges, lighting, and onboard electronics. If it runs on power, we can troubleshoot it.

Winnisquam Marine Services Fiberglass Repair

Gelcoat damage, hull cracks, structural fiberglass work, and cosmetic repairs. We handle it all in house.

Winnisquam Marine Services Routine Maintenance

Oil changes, filter replacements, fluid checks, belt inspections, and seasonal tune ups to keep your boat running right.

Winnisquam Marine Services Winterization

We prep your engine and systems for the off season so nothing freezes, cracks, or corrodes over winter. Includes fogging, fluid drainage, fuel stabilization, and full system check.

Winnisquam Marine Services Spring Commissioning

When the season starts, we get your boat back in the water. Battery install, fluid top off, systems check, and a once over to make sure everything is ready.

Winnisquam Marine Services Warranty Repairs

Authorized warranty service for Bennington, Bayliner, Monterey, Mercury, and Mercruiser. We file the paperwork and handle the repair.

csi banner
Winnisquam Marine Services

Premium Winter Boat Storage at Winnisquam Marine

Winnisquam Marine offers winter storage at three locations across the lake region, with Premium Winter Storage available at each. Our state-of-the-art storage facilities at Winnisquam Marine and Winni Marine are designed to keep your boat safe, secure, and protected throughout the off season. We are excited to announce the addition of Center Ossipee, formerly Ward’s Boat Shop, to our family, now offering both standard and Premium Storage services.

Current customers can call to request a winter storage form and reserve a spot. We look forward to serving our boating community with excellence and care!

View Winter Storage Contact Us

Service Request

This field is for validation purposes and should be left unchanged.

Your Contact Information

Name(Required)
Email(Required)

Tell Us About Your Boat

Which Service Location?
Winnisquam Marine Boat Dealer

THREE LOCATIONS
ACROSS THE LAKES REGION

Winnisquam Marine
(Main Location)

Our home base with multiple showrooms, including a Bennington and Bayliner Supercenter, featuring 50+ boats on display in a bright, heated space, plus service, rentals, and storage.

Locations
Location

Winni Marine
Lake Winnipesaukee

Near Weirs Beach in the Paugus Bay Channel. Rentals, valet, slips, gas dock, ship store, service, and storage.

Locations
Location

Winnisquam Marine of Ossipee

Boat sales, service, and storage. 30 boats on site. Bennington is the top seller here.

Locations
Location
  • Winnisquam
    Marine
  • Winni
    Marine
  • Winnisquam Marine
    of Ossipee

What Our Clients Say About Us

Ron Poirier profile picture
Ron Poirier
Google star 1Google star 2Google star 3Google star 4Google star 5
My wife and I purchased a 2027 Bennington from Zach Graham and the experience was exceptional. Zach is extremely knowledgeable and passionate about what he does. Zach answered every question I asked (I asked a lot) in a timely fashion and offered great insight every time. If you are considering a new or pre owned boat, I would highly recommend you speak with Zach Graham at Winnisquam Marine. He is a true professional.
Andrew Kokoska profile picture
Andrew Kokoska
Google star 1Google star 2Google star 3Google star 4Google star 5
Had a great buying experience with Jeremy at the Winnisquam Marine. The Team walked through the bought thoroughly, buying process was efficient.
Paige Crosby profile picture
Paige Crosby
Google star 1Google star 2Google star 3Google star 4Google star 5
They helped us quickly and we’re most thorough
Tracy Aubut profile picture
Tracy Aubut
Google star 1Google star 2Google star 3Google star 4Google star 5
Zach was great from start to finish. I am new to boating and he was gracious with all my questions. He took the time to really explain the boat and made sure we were all set when we picked it up.
Peter Crosby profile picture
Peter Crosby
Google star 1Google star 2Google star 3Google star 4Google star 5
spankydefense profile picture
spankydefense
Google star 1Google star 2Google star 3Google star 4Google star 5
Sales and service extremely helpful and kind! Great experience buying our Bennington pontoon boat here.
Kerri profile picture
Kerri
Google star 1Google star 2Google star 3Google star 4Google star 5
ML O profile picture
ML O
Google star 1Google star 2Google star 3Google star 4Google star 5
We rent a boat annually have used Winni Marine several times. Very knowledgeable, helpful, and make everything easy..when I was double charged they even helped me navigate getting a refund. Just all around friendly people..love the guy driving the golf cart who kept all the kids entertained while we waited for our rental to be ready. Top notch service, we will see you again next year!
Jennie Canning profile picture
Jennie Canning
Google star 1Google star 2Google star 3Google star 4Google star 5
Steven Cicchetto profile picture
Steven Cicchetto
Google star 1Google star 2Google star 3Google star 4Google star 5