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About Us

Although Dow Insurance Service, Inc. was newly formed in December of 2018, nothing about our Agency is New!  The Dows have been selling insurance in Joliet & the surrounding areas since 1945.  Most recently Bob, Diane & Chris were with Northern Insurance Service, LTD in Joliet.  With the untimely passing of Jeff Thompson, the Dows left Northern Insurance Service, LTD to begin a new Chapter in Lemont, IL.  Jeff Thompson’s kind and generous spirit will always be a part of the foundation of Dow Insurance.  

The Dow Insurance Service family has been growing since day one with the purchase of Golden Security Insurance on 12/23/2018.  Golden Security Insurance Agency was founded by Mary & Steven Cozzolino of Lemont.  Mary has been in the insurance industry for 37 years and has earned both her CPCU and CIC designations.  Her knowledge of insurance is vast with an emphasis on Transportation.  Mary’s team, including Amparo Herrera, will continue at Dow Insurance to provide the best insurance experience for our clients.  

In addition to the purchase of Golden Security Insurance, Dow Insurance is also proud to announce the merger with Baldwin & Company, Inc. of Joliet in July of 2019.  Jeff Barnes, Principal at Baldwin & Co, is a lifelong resident of Joliet and brings with him a wealth of knowledge in all lines of insurance.  Dow Insurance & Baldwin & Co have been a part of the Joliet Insurance landscape since 1945 & 1967 respectively and look forward to continuing the legacy under one roof in late 2019 and beyond.