396 Main Street
P.O. Box 505
Alton Bay, NH 03810


(603) 875-8848

Monday – Saturday: 8AM-5PM
Sunday: 10AM-5PM


(603) 875-5700

Monday – Saturday: 8AM-5PM
Sunday: 10AM-5PM

Welcome to Irwin Marine of Alton Bay. The crew here at “The Bay” likes to think we’re different from the rest. We take great pride in our small-town feel, we think of our neighbors as friends, and our customers as guests. There’s pride in a job well done, along with a satisfaction in working in the community in which we live.

Sure we love Winnipesaukee; however, we put just as much focus on the rest of the Lakes Region, making sure to provide you with the products and services you’ll need regardless of what body of water you boat on.

The best part is, we’re not just a smaller version of the Irwin’s flagship facility in Laconia. We feature a mix of products unique to our store and our customer’s needs. Walk up the steps to our showroom and check out our huge selection of PWC’s and accessories, a tow-sports pro shop stocked with top quality gear. Be sure to come back and visit our location in the winter as we become Irwin’s new home for snow-machine action, featuring Ski-Doo snowmobiles.

Make it a point to visit us in Alton Bay. We would value the opportunity to serve you.