About Brokerage

Close to home where it matters most.

At Warner Insurance, we are committed to the protection of our communities. As a service orientated office, we believe that our service is second to none. We take the time to deal with our client’s needs.

Warner and Insurance have been associated together for over 70 years, protecting the needs of clients in Eastern Ontario. Sebastian Warner is the manager of Warner Insurance, a company established by his dad John, in 1990. Sebastian’s grandfather Doug began selling life insurance in Cornwall in 1946.

Sebastian is a graduate of Grenville Christian College and the University of Western Ontario- he continues to undertake college courses in general insurance. Working with Sebastian is his dad, John Warner, a Chartered Insurance Professional of the Insurance Institute of Canada, Other licensed brokers are Kerry Van Allen, Carole Ross, Stefan Kolbinger & Sam Ramage. Victoria Perry is our controller.


  • Family began selling insurance in 1946
  • Chartered Insurance Professionals
  • Brokerage Incorporated in 1990
  • Celebrated 30 Years in 2020