Insurance in Clayton, Cape Vincent & the Thousand Islands
Local Insurance. Personal Service. Coverage You Can Count On.
For generations, Grant E. Dier Insurance has helped individuals, families and businesses throughout Clayton, Cape Vincent and the Thousand Islands protect what matters most. As an independent insurance agency, we work with multiple insurance carriers to help you find coverage that fits your needs, property and lifestyle.
From your home and vehicles to your boat, island property or business, our local team is here to make insurance easier to understand — with personal service from people who know the North Country.
Get a Free Insurance Quote | Call 315-686-5161
Your Local Independent Insurance Agency Since 1929
Insurance shouldn't feel one-size-fits-all — especially here in the Thousand Islands.
Grant E. Dier Insurance has served the region since 1929, providing personalized insurance solutions backed by local knowledge and individual attention. With offices in Clayton and Cape Vincent, New York, we're conveniently located to serve residents, property owners and businesses throughout Jefferson County and the Thousand Islands region.
Because we're an independent insurance agency, we're able to work with multiple insurance carriers and compare coverage options to help find the right solution for you.
Whether you live here year-round, own a seasonal property on the St. Lawrence River or operate a local business, you'll work with an experienced local insurance team that understands the area.
