Barton Insurance Agency has been serving the insurance needs of our clients for over 65 years. Our independent agency specializes in quality and competitive solutions for auto, home, business, and life insurance. See our affiliate office at Contoocook Office, 25 Dolly Road, Contoocook, NH 03229, Phone: 603-746-6677. Grantham Office, 120 Rte 10S, Suite 12, Grantham, NH 03753, Phone: 603-863-6991. Sunapee Office, 14 Pleasant Place, Sunapee, NH 03782, Phone: 603-763-1393.