Welcome to Gillan Marine

Established in 1978, Gillan Marine is a full service marina located in New Hampshire's Lakes Region on beautiful Lake Winnipesaukee. Offering quality pre-owned boats, used boats, new boats, slips and storage, boat repairs and everything else you may need for your boat.

Come visit us

396 Main Street, Alton Bay, NH 03810
603-875-8848

World Class Service

Gillan Marine's award winning Service Department has a full staff of mechanical technicians available for retail or warranty repairs. We service all brands of boats powered by MerCruiser, Mercury, Suzuki, Volvo Penta and Indmar engines.

Phone: 888-856-1249
Hours: 8AM - 6PM Monday - Saturday
eMail: Service@GoGillan.com

Rental Slips

 

We have Seasonal slips available

for boats up to 35'.

• A prime Location on the Big Lake
• Short Term slip leasing available
• We also have slips on the other side of the bridge in the River Lake Yacht Club for smaller boats

 

Click here for info on our slip rentals

  • Check out our New Boats

    Check out some of the best boats on the water. From large family cruisers and competition grade tow boats to luxury pontoons and world class fishing boats. We have something for everyone and every budget. Click here to see our new boat offerings

  • Large Supply of Used inventory.

    We've got a great supply of used inventory in stock and are changing it out all the time. Many of our used boat were purchased from us and prior owners have come back traded them in on another boat. Call or stop by today and see whats available. Click here to go to our "Boats.com" site with online invenstory, images and pricing. Click here to see our Pre-Owned boat inventory

  • Call or Stop by.

    We're here Monday - Saturday from 7:30-5PM from Mid May to September for Sales and Service and during the summer our retail sales office is also open on sunday from 10-3.
    Call us at: 888-856-1249, or email us sales@GoGillan.com