Thank you for your many years for solid and dependable insurance service. From year to year, you and your staff enable us to review our coverage, making it easy to compare many carriers. Recently, we needed to learn more about long term care insurance and once again your team stepped up and introduced us to the expert. The Sumner team always provides us with so much more than a piece of paper, you provide us with piece of mind. We are pleased that so many of your staff has taken the time to get to know us. Your organization is important to the family atmosphere of the greater Windham community. We are happy to recommend Sumner & Sumner to others.
— Colin and Loretta Rice: Lebanon CT
I have multiple companies and have been with Sumner and Sumner for over 20 years. I have found that they have always addressed my needs, have excellent customer service and go above and beyond just being my insurance company. I feel like they have my interests in mind. My partner and I trust them with all of our business and personal needs.
— MICHAEL WEITZ: Co-owner DESIGN CENTER EAST, Willimantic ct




Working to help protect what is most important to you is our number one goal. Insurance can sometimes be viewed as expensive, complicated and undesirable. However, the moment you have a claim, your whole world can change. It is the role of insurance to help put that world back together. Through strategic marketing, we will help you get the right coverage and price to fit your needs, giving you peace of mind.


Meet our team

About Us

Since 1851...

Starting in 1851, the then "A.W. Jillson Insurance Agency" started off in Willimantic, CT writing fire and life insurance. The agency was then purchased by A.B. Adams in 1862. Eventually some new talent was brought into the agency, with George Elliot and Stanley Sumner joining the firm in 1926. Later, Stanley's brother Homer would buy Mr. Elliot's interest and in 1947 the agency would take on the name "Sumner & Sumner". Since that time, we have continued to grow with the industry and our community. Today, we represent over 30 insurance companies and are poised to continue serving our clients for another 165 years.